diff --git a/docker-compose.yml b/docker-compose.yml
index a2901e5..dc72910 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -36,7 +36,6 @@ services:
       - dbdata:/var/lib/mysql
       - ./docker/mysql/init.sql:/docker-entrypoint-initdb.d/init.sql
       - ./docker/mysql/mysql-healthcheck.sh:/usr/local/bin/mysql-healthcheck.sh
-
     networks:
       - retrip-net
     restart: always
@@ -66,7 +65,10 @@ services:
     image: prom/prometheus
     container_name: prometheus
     volumes:
+      - ./data/prometheus:/prometheus
       - ./prometheus.yml:/etc/prometheus/prometheus.yml
+    depends_on:
+      - retrip-app
     ports:
       - "9090:9090"
     networks:
@@ -83,6 +85,7 @@ services:
     ports:
       - "3000:3000"
     volumes:
+      - ./data/grafana:/var/lib/grafana
       - grafana-storage:/var/lib/grafana
     depends_on:
       - prometheus
@@ -131,6 +134,7 @@ volumes:
 
 networks:
   retrip-net:
+    name: retrip-net
     driver: bridge
     ipam:
       config:
diff --git a/nginx/nginx-prod.conf b/nginx/nginx-prod.conf
index 31a7a3e..0929608 100644
--- a/nginx/nginx-prod.conf
+++ b/nginx/nginx-prod.conf
@@ -86,17 +86,10 @@ server {
     add_header X-Frame-Options DENY always;
     add_header X-XSS-Protection "1; mode=block" always;
 
-    # 내부 네트워크 허용
-    allow 192.168.0.0/16;
-    allow 172.16.0.0/12;
-    allow 127.0.0.1;
-
-    # IP 화이트리스트
-    include /etc/nginx/conf.d/allowed_ips.conf;
-
     # 백엔드 API 프록시
     location / {
-        # OPTIONS 요청 처리
+
+	# OPTIONS 요청 처리
         if ($request_method = 'OPTIONS') {
             add_header Content-Length 0;
             add_header Content-Type text/plain;
@@ -139,12 +132,12 @@ server {
     add_header X-Frame-Options SAMEORIGIN always;
     add_header X-XSS-Protection "1; mode=block" always;
 
-    # IP 화이트리스트 설정
-    include /etc/nginx/conf.d/allowed_ips.conf;
+    # IP 화이트리스트
+    include /etc/nginx/conf.d/allowed_ips.rules;
 
-    # Grafana 프록시
     location / {
-        proxy_pass http://grafana:3000;
+
+	proxy_pass http://grafana:3000;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@@ -183,12 +176,13 @@ server {
     add_header X-Frame-Options DENY always;
     add_header X-XSS-Protection "1; mode=block" always;
 
-    # IP 화이트리스트 설정
-    include /etc/nginx/conf.d/allowed_ips.conf;
+    # IP 화이트리스트
+    include /etc/nginx/conf.d/allowed_ips.rules;
 
     # Prometheus 프록시
     location / {
-        proxy_pass http://prometheus:9090;
+
+	proxy_pass http://prometheus:9090;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
diff --git a/scripts/deploy.sh b/scripts/deploy.sh
index 6f29cd5..4ec82e7 100644
--- a/scripts/deploy.sh
+++ b/scripts/deploy.sh
@@ -16,7 +16,7 @@ MAIN_DOMAIN="retrip.kr"
 CERT_FILE_PATH="./data/certbot/conf/live/$MAIN_DOMAIN/fullchain.pem"
 NGINX_CONF_DIR="./nginx/conf.d"
 NGINX_CONTAINER_NAME="nginx"
-WHITELIST_FILE="$NGINX_CONF_DIR/allowed_ips.conf"
+WHITELIST_FILE="$NGINX_CONF_DIR/allowed_ips.rules"
 
 if command -v docker-compose &> /dev/null; then
     DOCKER_COMPOSE="docker-compose"
@@ -41,7 +41,8 @@ setup_whitelist() {
         echo "모든 IP에서 접근이 허용됩니다."
 
         # 기본 설정 (모든 IP 허용)
-        cat > "$WHITELIST_FILE" << EOF
+        sudo tee "$WHITELIST_FILE" > /dev/null << EOF
+
 EOF
         return 0
     fi
@@ -49,7 +50,7 @@ EOF
     echo "화이트리스트가 설정되었습니다: $WHITELIST_IPS"
 
     # 화이트리스트 파일 생성
-    cat > "$WHITELIST_FILE" << EOF
+    sudo tee "$WHITELIST_FILE" > /dev/null << EOF
 EOF
 
     # 쉼표로 구분된 IP들을 처리
@@ -60,7 +61,7 @@ EOF
 
         # IP 형식 검증
         if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}(/[0-9]{1,2})?$ ]]; then
-            echo "allow $ip;" >> "$WHITELIST_FILE"
+            echo "allow $ip;" | sudo tee -a "$WHITELIST_FILE" > /dev/null
             echo "  - 허용된 IP: $ip"
         else
             echo "WARNING: 잘못된 IP 형식입니다: $ip"
@@ -68,7 +69,7 @@ EOF
     done
 
     # 마지막에 deny all 추가
-    echo "deny all;" >> "$WHITELIST_FILE"
+    echo "deny all;" | sudo tee -a "$WHITELIST_FILE" > /dev/null
 
     echo "화이트리스트 설정이 완료되었습니다."
     echo "설정된 내용:"
@@ -171,6 +172,9 @@ echo "최종 운영 설정을 적용하고 모든 서비스를 시작합니다."
 echo "운영용 Nginx 설정을 적용합니다."
 sudo cp ./nginx-prod.conf $NGINX_CONF_DIR/default.conf
 
+echo "기존 컨테이너를 종료합니다..."
+$DOCKER_COMPOSE down
+
 echo "새로운 Docker 이미지를 pull 합니다"
 $DOCKER_COMPOSE pull retrip-app
 
diff --git a/src/main/java/ssafy/retrip/api/controller/email/EmailController.java b/src/main/java/ssafy/retrip/api/controller/email/EmailController.java
deleted file mode 100644
index 459d452..0000000
--- a/src/main/java/ssafy/retrip/api/controller/email/EmailController.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package ssafy.retrip.api.controller.email;
-
-
-import jakarta.validation.Valid;
-import lombok.RequiredArgsConstructor;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-import ssafy.retrip.api.controller.email.request.EmailRequest;
-import ssafy.retrip.api.controller.email.request.EmailVerificationRequest;
-import ssafy.retrip.api.service.email.EmailService;
-
-@RestController
-@RequiredArgsConstructor
-@RequestMapping("/api/email")
-public class EmailController {
-
-  private final EmailService emailService;
-
-  @PostMapping
-  public ResponseEntity<String> sendSignUpEmailCode(@Valid @RequestBody EmailRequest request) {
-    emailService.joinEmail(request.getEmail());
-    return ResponseEntity.ok("success");
-  }
-
-  @PostMapping("/verify")
-  public ResponseEntity<String> verifySignUpEmailCode(
-      @Valid @RequestBody EmailVerificationRequest request) {
-
-    emailService.verifyEmailCode(request.toServiceRequest());
-    return ResponseEntity.ok("success");
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/email/request/EmailRequest.java b/src/main/java/ssafy/retrip/api/controller/email/request/EmailRequest.java
deleted file mode 100644
index 8ca5b0d..0000000
--- a/src/main/java/ssafy/retrip/api/controller/email/request/EmailRequest.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package ssafy.retrip.api.controller.email.request;
-
-import jakarta.validation.constraints.NotNull;
-import lombok.Getter;
-
-@Getter
-public class EmailRequest {
-
-  @NotNull(message = "이메일은 필수 입력값입니다.")
-  private String email;
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/email/request/EmailVerificationRequest.java b/src/main/java/ssafy/retrip/api/controller/email/request/EmailVerificationRequest.java
deleted file mode 100644
index aacf785..0000000
--- a/src/main/java/ssafy/retrip/api/controller/email/request/EmailVerificationRequest.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package ssafy.retrip.api.controller.email.request;
-
-import jakarta.validation.constraints.NotNull;
-import jakarta.validation.constraints.Size;
-import lombok.Getter;
-import ssafy.retrip.api.service.email.request.EmailVerificationServiceRequest;
-
-@Getter
-public class EmailVerificationRequest {
-
-  @NotNull(message = "이메일은 필수 입력값입니다.")
-  private String email;
-
-  @NotNull(message = "코드는 필수 입력값입니다.")
-  @Size(min = 6, max = 6, message = "코드는 6자리여야 합니다.")
-  private String code;
-
-  public EmailVerificationServiceRequest toServiceRequest() {
-    return EmailVerificationServiceRequest.builder()
-        .email(email)
-        .code(code).build();
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/member/MemberController.java b/src/main/java/ssafy/retrip/api/controller/member/MemberController.java
deleted file mode 100644
index d05262a..0000000
--- a/src/main/java/ssafy/retrip/api/controller/member/MemberController.java
+++ /dev/null
@@ -1,84 +0,0 @@
-package ssafy.retrip.api.controller.member;
-
-import jakarta.validation.Valid;
-import java.util.List;
-import lombok.RequiredArgsConstructor;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
-import ssafy.retrip.api.controller.email.request.EmailRequest;
-import ssafy.retrip.api.controller.email.request.EmailVerificationRequest;
-import ssafy.retrip.api.controller.member.request.MemberSignInRequest;
-import ssafy.retrip.api.controller.member.request.MemberSignUpRequest;
-import ssafy.retrip.api.controller.member.request.PasswordFindRequest;
-import ssafy.retrip.api.controller.member.request.PasswordResetRequest;
-import ssafy.retrip.api.service.email.EmailService;
-import ssafy.retrip.api.service.member.MemberService;
-import ssafy.retrip.api.service.retrip.response.ImageUrlResponse;
-
-@RestController
-@RequiredArgsConstructor
-@RequestMapping("/api/members")
-public class MemberController {
-
-  public final EmailService emailService;
-  public final MemberService memberService;
-
-  @PostMapping("/signup")
-  public ResponseEntity<String> signup(@Valid @RequestBody MemberSignUpRequest request) {
-    memberService.signup(request.toServiceRequest());
-    return ResponseEntity.ok("success");
-  }
-
-  @PostMapping("/signin")
-  public ResponseEntity<String> signin(@Valid @RequestBody MemberSignInRequest request) {
-    memberService.signIn(request.toServiceRequest());
-    return ResponseEntity.ok("로그인 성공");
-  }
-
-  @GetMapping("/validate/nickname")
-  public ResponseEntity<String> validateNickname(
-      @RequestParam(value = "nickname") String nickname) {
-    memberService.validateNickname(nickname);
-    return ResponseEntity.ok("사용 가능한 아이디입니다.");
-  }
-
-  @PostMapping("/send-verification-code")
-  public ResponseEntity<String> sendVerificationCode(@Valid @RequestBody EmailRequest request) {
-    memberService.sendVerificationCode(request.getEmail());
-    return ResponseEntity.ok("success");
-  }
-
-  @PostMapping("/find-id")
-  public ResponseEntity<String> findUserId(@Valid @RequestBody EmailVerificationRequest request) {
-    emailService.verifyEmailCode(request.toServiceRequest());
-    String forgotUserId = memberService.getForgotUserId(request.getEmail());
-    return ResponseEntity.ok(forgotUserId);
-  }
-
-  @PostMapping("/password/verify-credentials")
-  public ResponseEntity<String> verifyPasswordResetCredentials(
-      @Valid @RequestBody PasswordFindRequest request) {
-    memberService.verifyPasswordResetCredentials(request.toServiceRequest());
-    return ResponseEntity.ok("success");
-  }
-
-  @PostMapping("/password/reset")
-  public ResponseEntity<String> resetPassword(@Valid @RequestBody PasswordResetRequest request) {
-    memberService.resetPassword(request.toServiceRequest());
-    return ResponseEntity.ok("비밀번호가 성공적으로 변경되었습니다.");
-  }
-
-  @GetMapping("/history")
-  public ResponseEntity<List<ImageUrlResponse>> getRetripHistoryByMemberId() {
-
-    String memberId = "4277332119";
-    List<ImageUrlResponse> responses = memberService.getRetripHistoryByMemberId(memberId);
-
-    return ResponseEntity.ok(responses);
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/controller/member/request/MemberSignInRequest.java b/src/main/java/ssafy/retrip/api/controller/member/request/MemberSignInRequest.java
deleted file mode 100644
index d8662e5..0000000
--- a/src/main/java/ssafy/retrip/api/controller/member/request/MemberSignInRequest.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package ssafy.retrip.api.controller.member.request;
-
-import lombok.Getter;
-import ssafy.retrip.api.service.member.request.MemberSignInServiceRequest;
-
-@Getter
-public class MemberSignInRequest {
-
-  private String userId;
-  private String password;
-
-  public MemberSignInServiceRequest toServiceRequest() {
-    return MemberSignInServiceRequest.builder()
-        .userId(userId)
-        .password(password)
-        .build();
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/member/request/MemberSignUpRequest.java b/src/main/java/ssafy/retrip/api/controller/member/request/MemberSignUpRequest.java
deleted file mode 100644
index 3dec9b0..0000000
--- a/src/main/java/ssafy/retrip/api/controller/member/request/MemberSignUpRequest.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package ssafy.retrip.api.controller.member.request;
-
-import jakarta.validation.constraints.NotNull;
-import jakarta.validation.constraints.Size;
-import lombok.AccessLevel;
-import lombok.Builder;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import ssafy.retrip.api.service.member.request.MemberSignUpServiceRequest;
-
-@Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class MemberSignUpRequest {
-
-  @NotNull(message = "아이디는 필수 입력값입니다.")
-  private String userId;
-
-  @NotNull(message = "비밀번호는 필수 입력값입니다.")
-  @Size(min = 8, max = 20, message = "비밀번호는 8자 이상 20자 이하로 입력해주세요.")
-  private String password;
-
-  @NotNull(message = "이메일은 필수 입력값입니다.")
-  private String email;
-
-  @Builder
-  private MemberSignUpRequest(String userId, String password, String email) {
-    this.userId = userId;
-    this.password = password;
-    this.email = email;
-  }
-
-  public MemberSignUpServiceRequest toServiceRequest() {
-    return MemberSignUpServiceRequest.builder()
-        .userId(userId)
-        .password(password)
-        .email(email).build();
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/member/request/PasswordFindRequest.java b/src/main/java/ssafy/retrip/api/controller/member/request/PasswordFindRequest.java
deleted file mode 100644
index 48775b7..0000000
--- a/src/main/java/ssafy/retrip/api/controller/member/request/PasswordFindRequest.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package ssafy.retrip.api.controller.member.request;
-
-import jakarta.validation.constraints.NotNull;
-import jakarta.validation.constraints.Size;
-import lombok.AccessLevel;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import ssafy.retrip.api.service.member.request.PasswordFindServiceRequest;
-
-@Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class PasswordFindRequest {
-
-  @NotNull(message = "아이디는 필수 입력값입니다.")
-  private String userId; // 회원 아이디
-
-  @NotNull(message = "이메일은 필수 입력값입니다.")
-  private String email;
-
-  @NotNull(message = "코드는 필수 입력값입니다.")
-  @Size(min = 6, max = 6, message = "코드는 6자리여야 합니다.")
-  private String code;
-
-  public PasswordFindServiceRequest toServiceRequest() {
-    return PasswordFindServiceRequest.builder()
-        .userId(userId)
-        .email(email)
-        .code(code)
-        .build();
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/member/request/PasswordResetRequest.java b/src/main/java/ssafy/retrip/api/controller/member/request/PasswordResetRequest.java
deleted file mode 100644
index c7968a2..0000000
--- a/src/main/java/ssafy/retrip/api/controller/member/request/PasswordResetRequest.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package ssafy.retrip.api.controller.member.request;
-
-import lombok.AccessLevel;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import ssafy.retrip.api.service.member.request.PasswordResetServiceRequest;
-
-@Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class PasswordResetRequest {
-
-  private String email;
-  private String newPassword;
-
-  public PasswordResetServiceRequest toServiceRequest() {
-    return PasswordResetServiceRequest.builder()
-        .email(email)
-        .newPassword(newPassword)
-        .build();
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/controller/retrip/RetripController.java b/src/main/java/ssafy/retrip/api/controller/retrip/RetripController.java
index 1e8152f..c6838da 100644
--- a/src/main/java/ssafy/retrip/api/controller/retrip/RetripController.java
+++ b/src/main/java/ssafy/retrip/api/controller/retrip/RetripController.java
@@ -13,7 +13,6 @@
 import org.springframework.web.multipart.MultipartFile;
 import ssafy.retrip.api.controller.retrip.response.TravelAnalysisResponseDto;
 import ssafy.retrip.api.service.retrip.RetripService;
-import ssafy.retrip.domain.member.MemberRepository;
 
 @RestController
 @RequiredArgsConstructor
@@ -25,18 +24,12 @@ public class RetripController {
   @PostMapping("/uploads")
   public ResponseEntity<TravelAnalysisResponseDto> uploadMultipleImages(HttpServletRequest request,
       @RequestParam("images") List<MultipartFile> images) throws IOException {
-    // 비회원 사용자를 가정하여 memberId를 null로 설정합니다.
-    String memberId = null;
 
     try {
-      return ResponseEntity.ok(retripService.createRetripFromImages(images, memberId));
+      return ResponseEntity.ok(retripService.createRetripFromImages(images));
     } catch (Exception e) {
       e.printStackTrace();
       return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
     }
   }
-
-  // TO-DO : retrip 히스토리 조회 + 회원가입 기능
-
-
 }
diff --git a/src/main/java/ssafy/retrip/api/controller/test/TestController.java b/src/main/java/ssafy/retrip/api/controller/test/TestController.java
deleted file mode 100644
index ecca56b..0000000
--- a/src/main/java/ssafy/retrip/api/controller/test/TestController.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package ssafy.retrip.api.controller.test;
-
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-@RestController
-public class TestController {
-
-  @GetMapping("/test")
-  public String test() {
-    return "CI Test Success!";
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/email/EmailService.java b/src/main/java/ssafy/retrip/api/service/email/EmailService.java
deleted file mode 100644
index c9b30e3..0000000
--- a/src/main/java/ssafy/retrip/api/service/email/EmailService.java
+++ /dev/null
@@ -1,86 +0,0 @@
-package ssafy.retrip.api.service.email;
-
-import jakarta.mail.MessagingException;
-import jakarta.mail.internet.MimeMessage;
-import java.util.Random;
-import java.util.concurrent.TimeUnit;
-import lombok.RequiredArgsConstructor;
-import org.apache.commons.lang3.StringUtils;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.data.redis.core.RedisTemplate;
-import org.springframework.data.redis.core.ValueOperations;
-import org.springframework.mail.javamail.JavaMailSender;
-import org.springframework.mail.javamail.MimeMessageHelper;
-import org.springframework.stereotype.Service;
-import ssafy.retrip.api.service.email.request.EmailVerificationServiceRequest;
-
-@Service
-@RequiredArgsConstructor
-public class EmailService {
-
-  private static final int CODE_LENGTH = 6;
-
-  private final JavaMailSender mailSender;
-  private final RedisTemplate<String, String> redisTemplate;
-
-  @Value("${spring.mail.username}")
-  private String senderEmail;
-
-  public void joinEmail(String userEmail) {
-    String code = createRandomCode();
-    String title = "[ReTrip] 회원가입 이메일 인증번호 발송";
-    String content = "<p>ReTrip 회원가입을 위한 인증번호입니다.</p>"
-                     + "<h3 style='color: " + "var(--main-color)" + ";'>" + code + "</h3>"
-                     + "<p>인증번호는 3분간 유효합니다.</p>"
-                     + "<p>감사합니다.</p>";
-    sendEmailCode(userEmail, title, content, code);
-  }
-
-  public void findForgotUserId(String userEmail) {
-    String code = createRandomCode();
-    String title = "[ReTrip] 아이디 찾기 이메일 인증번호 발송";
-    String content = "<p>ReTrip 아이디 찾기를 위한 인증번호입니다.</p>"
-                     + "<h3 style='color: " + "var(--main-color)" + ";'>" + code + "</h3>"
-                     + "<p>인증번호는 3분간 유효합니다.</p>"
-                     + "<p>감사합니다.</p>";
-    sendEmailCode(userEmail, title, content, code);
-  }
-
-  private void sendEmailCode(String userEmail, String title, String content, String code) {
-
-    MimeMessage message = mailSender.createMimeMessage();
-    try {
-      MimeMessageHelper helper = new MimeMessageHelper(message, true, "UTF-8");
-      helper.setFrom(senderEmail);
-      helper.setTo(userEmail);
-      helper.setSubject(title);
-      helper.setText(content, true);
-      mailSender.send(message);
-    } catch (MessagingException e) {
-      return;
-    }
-
-    ValueOperations<String, String> valOperations = redisTemplate.opsForValue();
-    valOperations.set(userEmail, code, 180, TimeUnit.SECONDS);
-  }
-
-  public void verifyEmailCode(EmailVerificationServiceRequest request) {
-    ValueOperations<String, String> valOperations = redisTemplate.opsForValue();
-    String code = valOperations.get(request.getEmail());
-    if (!StringUtils.equals(code, request.getCode())) {
-      throw new IllegalArgumentException("인증번호가 일치하지 않습니다.");
-    }
-
-    redisTemplate.delete(request.getEmail());
-  }
-
-  private String createRandomCode() {
-    String chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-    StringBuilder sb = new StringBuilder(CODE_LENGTH);
-    Random random = new Random();
-    for (int i = 0; i < CODE_LENGTH; i++) {
-      sb.append(chars.charAt(random.nextInt(chars.length())));
-    }
-    return sb.toString();
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/email/request/EmailVerificationServiceRequest.java b/src/main/java/ssafy/retrip/api/service/email/request/EmailVerificationServiceRequest.java
deleted file mode 100644
index f4bd253..0000000
--- a/src/main/java/ssafy/retrip/api/service/email/request/EmailVerificationServiceRequest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package ssafy.retrip.api.service.email.request;
-
-import lombok.Builder;
-import lombok.Getter;
-
-@Getter
-public class EmailVerificationServiceRequest {
-
-  private String email;
-  private String code;
-
-  @Builder
-  private EmailVerificationServiceRequest(String email, String code) {
-    this.email = email;
-    this.code = code;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/service/member/MemberService.java b/src/main/java/ssafy/retrip/api/service/member/MemberService.java
deleted file mode 100644
index 18ab87c..0000000
--- a/src/main/java/ssafy/retrip/api/service/member/MemberService.java
+++ /dev/null
@@ -1,110 +0,0 @@
-package ssafy.retrip.api.service.member;
-
-import static ssafy.retrip.domain.member.LoginType.NORMAL;
-
-import java.util.List;
-import lombok.RequiredArgsConstructor;
-import org.apache.commons.lang3.StringUtils;
-import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import ssafy.retrip.api.service.email.EmailService;
-import ssafy.retrip.api.service.email.request.EmailVerificationServiceRequest;
-import ssafy.retrip.api.service.member.request.MemberSignInServiceRequest;
-import ssafy.retrip.api.service.member.request.MemberSignUpServiceRequest;
-import ssafy.retrip.api.service.member.request.PasswordFindServiceRequest;
-import ssafy.retrip.api.service.member.request.PasswordResetServiceRequest;
-import ssafy.retrip.api.service.retrip.response.ImageUrlResponse;
-import ssafy.retrip.domain.member.Member;
-import ssafy.retrip.domain.member.MemberRepository;
-import ssafy.retrip.domain.retripReport.RetripReport;
-import ssafy.retrip.domain.retripReport.RetripReportRepository;
-import ssafy.retrip.global.exception.NicknameAlreadyExistsException;
-
-@Service
-@RequiredArgsConstructor
-@Transactional(readOnly = true)
-public class MemberService {
-
-  private final EmailService emailService;
-  private final MemberRepository memberRepository;
-  private final BCryptPasswordEncoder passwordEncoder;
-  private final RetripReportRepository retripReportRepository;
-
-  @Transactional
-  public void signup(MemberSignUpServiceRequest request) {
-
-    String encodedPassword = passwordEncoder.encode(request.getPassword());
-    Member member = Member.builder()
-        .userId(request.getUserId())
-        .password(encodedPassword)
-        .email(request.getEmail())
-        .loginType(NORMAL).build();
-
-    memberRepository.save(member);
-  }
-
-  public void validateNickname(String nickname) {
-    if (memberRepository.existsByUserId(nickname)) {
-      throw new NicknameAlreadyExistsException("이미 사용 중인 닉네임입니다.");
-    }
-  }
-
-  public void signIn(MemberSignInServiceRequest request) {
-
-    Member member = memberRepository.findByUserId(request.getUserId())
-        .orElseThrow(() -> new IllegalArgumentException("존재하지 않는 회원입니다."));
-
-    if (!passwordEncoder.matches(request.getPassword(), member.getPassword())) {
-      throw new IllegalArgumentException("비밀번호가 일치하지 않습니다.");
-    }
-  }
-
-  public void sendVerificationCode(String email) {
-    emailService.findForgotUserId(email);
-  }
-
-  public String getForgotUserId(String email) {
-    Member member = memberRepository.findByEmail(email)
-        .orElseThrow(() -> new IllegalArgumentException("존재하지 않는 회원입니다."));
-
-    return member.getUserId();
-  }
-
-  public void verifyPasswordResetCredentials(PasswordFindServiceRequest request) {
-
-    emailService.verifyEmailCode(EmailVerificationServiceRequest.builder()
-        .email(request.getEmail())
-        .code(request.getCode()).build());
-
-    Member member = memberRepository.findByEmail(request.getEmail()).orElseThrow(
-        () -> new IllegalArgumentException("회원 정보가 일치하지 않습니다.")
-    );
-
-    if (!StringUtils.equals(member.getUserId(), request.getUserId())) {
-      throw new IllegalArgumentException("회원 정보가 일치하지 않습니다.");
-    }
-  }
-
-  @Transactional
-  public void resetPassword(PasswordResetServiceRequest request) {
-    Member member = memberRepository.findByEmail(request.getEmail()).orElseThrow(
-        () -> new IllegalArgumentException("존재하지 않는 회원입니다.")
-    );
-
-    String encodedPassword = passwordEncoder.encode(request.getNewPassword());
-    member.updatePassword(encodedPassword);
-  }
-
-  public List<ImageUrlResponse> getRetripHistoryByMemberId(String memberId) {
-
-    List<RetripReport> retripReports = retripReportRepository.findByMemberId(memberId).orElseThrow(
-        () -> new IllegalStateException("해당 회원의 Retrip 히스토리가 없습니다.")
-    );
-
-    return retripReports.stream()
-        .map(report -> ImageUrlResponse.builder()
-            .imageUrl(report.getImageUrl())
-            .build()).toList();
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/member/request/MemberSignInServiceRequest.java b/src/main/java/ssafy/retrip/api/service/member/request/MemberSignInServiceRequest.java
deleted file mode 100644
index 17d8901..0000000
--- a/src/main/java/ssafy/retrip/api/service/member/request/MemberSignInServiceRequest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package ssafy.retrip.api.service.member.request;
-
-import lombok.Builder;
-import lombok.Getter;
-
-@Getter
-public class MemberSignInServiceRequest {
-
-  private String userId;
-  private String password;
-
-  @Builder
-  private MemberSignInServiceRequest(String userId, String password) {
-    this.userId = userId;
-    this.password = password;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/service/member/request/MemberSignUpServiceRequest.java b/src/main/java/ssafy/retrip/api/service/member/request/MemberSignUpServiceRequest.java
deleted file mode 100644
index d557577..0000000
--- a/src/main/java/ssafy/retrip/api/service/member/request/MemberSignUpServiceRequest.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package ssafy.retrip.api.service.member.request;
-
-import lombok.Builder;
-import lombok.Getter;
-
-@Getter
-public class MemberSignUpServiceRequest {
-
-
-  private String userId;
-
-  private String password;
-
-  private String email;
-
-  @Builder
-  private MemberSignUpServiceRequest(String userId, String password, String email) {
-    this.userId = userId;
-    this.password = password;
-    this.email = email;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/service/member/request/PasswordFindServiceRequest.java b/src/main/java/ssafy/retrip/api/service/member/request/PasswordFindServiceRequest.java
deleted file mode 100644
index 8c202e2..0000000
--- a/src/main/java/ssafy/retrip/api/service/member/request/PasswordFindServiceRequest.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package ssafy.retrip.api.service.member.request;
-
-import jakarta.validation.constraints.NotNull;
-import jakarta.validation.constraints.Size;
-import lombok.Builder;
-import lombok.Getter;
-
-@Getter
-public class PasswordFindServiceRequest {
-
-  @NotNull(message = "아이디는 필수 입력값입니다.")
-  private String userId; // 회원 아이디
-
-  @NotNull(message = "이메일은 필수 입력값입니다.")
-  private String email;
-
-  @NotNull(message = "코드는 필수 입력값입니다.")
-  @Size(min = 6, max = 6, message = "코드는 6자리여야 합니다.")
-  private String code;
-
-  @Builder
-  private PasswordFindServiceRequest(String userId, String email, String code) {
-    this.userId = userId;
-    this.email = email;
-    this.code = code;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/service/member/request/PasswordResetServiceRequest.java b/src/main/java/ssafy/retrip/api/service/member/request/PasswordResetServiceRequest.java
deleted file mode 100644
index 8f90ae4..0000000
--- a/src/main/java/ssafy/retrip/api/service/member/request/PasswordResetServiceRequest.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package ssafy.retrip.api.service.member.request;
-
-import lombok.AccessLevel;
-import lombok.Builder;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class PasswordResetServiceRequest {
-
-  private String email;
-  private String newPassword;
-
-  @Builder
-  private PasswordResetServiceRequest(String email, String newPassword) {
-    this.email = email;
-    this.newPassword = newPassword;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/service/oauth/CustomOAuth2UserService.java b/src/main/java/ssafy/retrip/api/service/oauth/CustomOAuth2UserService.java
deleted file mode 100644
index 10c0bbd..0000000
--- a/src/main/java/ssafy/retrip/api/service/oauth/CustomOAuth2UserService.java
+++ /dev/null
@@ -1,53 +0,0 @@
-package ssafy.retrip.api.service.oauth;
-
-
-import jakarta.transaction.Transactional;
-import java.util.Optional;
-import lombok.RequiredArgsConstructor;
-import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserRequest;
-import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserService;
-import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
-import org.springframework.security.oauth2.core.oidc.user.OidcUser;
-import org.springframework.stereotype.Service;
-import org.springframework.web.client.RestClient;
-import ssafy.retrip.api.service.oauth.info.KakaoUserInfo;
-import ssafy.retrip.api.service.oauth.request.KakaoUserCreateServiceRequest;
-
-@Service
-@Transactional
-@RequiredArgsConstructor
-public class CustomOAuth2UserService extends OidcUserService {
-
-  private final RestClient restClient;
-
-  private final String USER_INFO_URL = "https://kapi.kakao.com/v1/oidc/userinfo";
-  private final String HEADER_NAME = "Authorization";
-  private final String HEADER_VALUE = "Bearer ";
-
-  @Override
-  public OidcUser loadUser(OidcUserRequest userRequest) throws OAuth2AuthenticationException {
-
-    OidcUser oidcUser = super.loadUser(userRequest);
-
-    KakaoUserInfo info = getKakaoUserInfo(userRequest);
-
-    return CustomOidcUser.builder()
-        .oidcUser(oidcUser)
-        .info(info).build();
-  }
-
-  private KakaoUserInfo getKakaoUserInfo(OidcUserRequest userRequest) {
-
-    String accessToken = userRequest.getAccessToken().getTokenValue();
-
-    KakaoUserCreateServiceRequest request = restClient.get()
-        .uri(USER_INFO_URL)
-        .header(HEADER_NAME, HEADER_VALUE + accessToken)
-        .retrieve()
-        .body(KakaoUserCreateServiceRequest.class);
-
-    return Optional.ofNullable(request)
-        .map(KakaoUserCreateServiceRequest::toKakaoUserInfo)
-        .orElseThrow(IllegalArgumentException::new);
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/oauth/CustomOidcUser.java b/src/main/java/ssafy/retrip/api/service/oauth/CustomOidcUser.java
deleted file mode 100644
index 0e8d72d..0000000
--- a/src/main/java/ssafy/retrip/api/service/oauth/CustomOidcUser.java
+++ /dev/null
@@ -1,54 +0,0 @@
-package ssafy.retrip.api.service.oauth;
-
-import java.util.Collection;
-import java.util.Map;
-import lombok.Builder;
-import lombok.Getter;
-import org.springframework.security.core.GrantedAuthority;
-import org.springframework.security.oauth2.core.oidc.OidcIdToken;
-import org.springframework.security.oauth2.core.oidc.OidcUserInfo;
-import org.springframework.security.oauth2.core.oidc.user.OidcUser;
-import ssafy.retrip.api.service.oauth.info.KakaoUserInfo;
-
-@Getter
-public class CustomOidcUser implements OidcUser {
-
-  private final OidcUser oidcUser;
-  private final KakaoUserInfo info;
-
-  @Builder
-  private CustomOidcUser(OidcUser oidcUser, KakaoUserInfo info) {
-    this.oidcUser = oidcUser;
-    this.info = info;
-  }
-
-  @Override
-  public String getName() {
-    return oidcUser.getName();
-  }
-
-  @Override
-  public OidcIdToken getIdToken() {
-    return oidcUser.getIdToken();
-  }
-
-  @Override
-  public OidcUserInfo getUserInfo() {
-    return oidcUser.getUserInfo();
-  }
-
-  @Override
-  public Map<String, Object> getClaims() {
-    return oidcUser.getClaims();
-  }
-
-  @Override
-  public Map<String, Object> getAttributes() {
-    return oidcUser.getAttributes();
-  }
-
-  @Override
-  public Collection<? extends GrantedAuthority> getAuthorities() {
-    return oidcUser.getAuthorities();
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/oauth/info/KakaoUserInfo.java b/src/main/java/ssafy/retrip/api/service/oauth/info/KakaoUserInfo.java
deleted file mode 100644
index a27bac3..0000000
--- a/src/main/java/ssafy/retrip/api/service/oauth/info/KakaoUserInfo.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package ssafy.retrip.api.service.oauth.info;
-
-import static lombok.AccessLevel.PROTECTED;
-
-import lombok.Builder;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Getter
-@NoArgsConstructor(access = PROTECTED)
-public class KakaoUserInfo {
-
-  private String sub;
-
-  private String email;
-
-  private String nickname;
-
-  @Builder
-  public KakaoUserInfo(String sub, String email, String nickname) {
-    this.sub = sub;
-    this.email = email;
-    this.nickname = nickname;
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/oauth/request/KakaoUserCreateServiceRequest.java b/src/main/java/ssafy/retrip/api/service/oauth/request/KakaoUserCreateServiceRequest.java
deleted file mode 100644
index 7c294da..0000000
--- a/src/main/java/ssafy/retrip/api/service/oauth/request/KakaoUserCreateServiceRequest.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package ssafy.retrip.api.service.oauth.request;
-
-import static lombok.AccessLevel.PROTECTED;
-
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import ssafy.retrip.api.service.oauth.info.KakaoUserInfo;
-
-@Getter
-@NoArgsConstructor(access = PROTECTED)
-public class KakaoUserCreateServiceRequest {
-
-  private String sub;
-
-  private String email;
-
-  private String nickname;
-
-  public KakaoUserInfo toKakaoUserInfo() {
-    return KakaoUserInfo.builder()
-        .sub(sub)
-        .email(email)
-        .nickname(nickname).build();
-  }
-}
diff --git a/src/main/java/ssafy/retrip/api/service/retrip/ImageConverter.java b/src/main/java/ssafy/retrip/api/service/retrip/ImageConverter.java
index 85b22b7..dda0257 100644
--- a/src/main/java/ssafy/retrip/api/service/retrip/ImageConverter.java
+++ b/src/main/java/ssafy/retrip/api/service/retrip/ImageConverter.java
@@ -13,10 +13,9 @@
 public class ImageConverter {
 
   private static final int MAX_EDGE = 1080;
+  public static final String JPEG_FORMAT = "jpg";
+  public static final double JPEG_OUTPUT_QUALITY = 0.9;
 
-  /**
-   * MultipartFile을 리사이징하고 JPEG byte[]로 변환합니다. (In-Memory) HEIC 포맷을 감지하여 처리합니다.
-   */
   public byte[] convertAndResizeToJpeg(MultipartFile file) throws IOException {
     BufferedImage src = ImageIO.read(file.getInputStream());
     if (src == null) {
@@ -26,16 +25,13 @@ public byte[] convertAndResizeToJpeg(MultipartFile file) throws IOException {
     try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
       Thumbnails.of(src)
           .size(MAX_EDGE, MAX_EDGE)
-          .outputFormat("jpg")
-          .outputQuality(0.9)
+          .outputFormat(JPEG_FORMAT)
+          .outputQuality(JPEG_OUTPUT_QUALITY)
           .toOutputStream(out);
       return out.toByteArray();
     }
   }
 
-  /**
-   * 이미지 byte[]를 Base64 Data URL로 변환합니다. (GPT 전송용)
-   */
   public String toDataUrl(byte[] imageBytes) {
     String b64 = Base64.getEncoder().encodeToString(imageBytes);
     return "data:image/jpeg;base64," + b64;
diff --git a/src/main/java/ssafy/retrip/api/service/retrip/RetripService.java b/src/main/java/ssafy/retrip/api/service/retrip/RetripService.java
index a6ccb44..d9cf96b 100644
--- a/src/main/java/ssafy/retrip/api/service/retrip/RetripService.java
+++ b/src/main/java/ssafy/retrip/api/service/retrip/RetripService.java
@@ -1,17 +1,20 @@
 package ssafy.retrip.api.service.retrip;
 
-import com.drew.imaging.ImageMetadataReader;
-import com.drew.lang.GeoLocation;
-import com.drew.metadata.Metadata;
-import com.drew.metadata.exif.ExifSubIFDDirectory;
-import com.drew.metadata.exif.GpsDirectory;
-import java.io.InputStream;
+import static ssafy.retrip.domain.retrip.TimeSlot.*;
+import static ssafy.retrip.utils.CoordinateUtil.analyzeMainLocation;
+import static ssafy.retrip.utils.CoordinateUtil.calculateAverageCoordinates;
+import static ssafy.retrip.utils.DateUtil.findEarliestTakenDate;
+import static ssafy.retrip.utils.DateUtil.findLatestTakenDate;
+import static ssafy.retrip.utils.DistanceUtil.calculateTotalDistance;
+import static ssafy.retrip.utils.ImageMetaDataUtil.extractMetadata;
+
 import java.time.LocalDateTime;
-import java.time.ZoneId;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
 import java.util.stream.Collectors;
-import lombok.AllArgsConstructor;
-import lombok.Data;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -22,9 +25,9 @@
 import ssafy.retrip.api.service.openai.GptImageAnalysisService;
 import ssafy.retrip.api.service.openai.response.AnalysisResponse;
 import ssafy.retrip.api.service.openai.response.AnalysisResponse.Recommendation;
-import ssafy.retrip.domain.member.Member;
-import ssafy.retrip.domain.member.MemberRepository;
-import ssafy.retrip.domain.retrip.RecommendationPlace;
+import ssafy.retrip.api.service.retrip.info.GpsCoordinate;
+import ssafy.retrip.api.service.retrip.info.ImageMetaData;
+import ssafy.retrip.domain.place.RecommendationPlace;
 import ssafy.retrip.domain.retrip.Retrip;
 import ssafy.retrip.domain.retrip.RetripRepository;
 import ssafy.retrip.domain.retrip.TimeSlot;
@@ -34,31 +37,60 @@
 @RequiredArgsConstructor
 public class RetripService {
 
-  private final MemberRepository memberRepository;
+  public static final String DEFAULT_USERNAME = "여행자님";
+
   private final RetripRepository retripRepository;
   private final ImageConverter imageConverter;
   private final GptImageAnalysisService gptImageAnalysisService;
 
   @Value("${retrip.image.min-count}")
-  private int minImages;
+  private int minImageCount;
+
   @Value("${retrip.image.max-count}")
-  private int maxImages;
+  private int maxImageCount;
 
-  /**
-   * 여러 장의 이미지를 받아 여행 기록(Retrip)을 생성하고 분석 결과를 반환합니다. 이미지 처리, 메타데이터 추출, GPT 분석, DB 저장을 총괄합니다.
-   *
-   * @param images   사용자가 업로드한 이미지 파일 리스트
-   * @param memberId 요청을 보낸 회원의 ID (비회원일 경우 null)
-   * @return 생성된 여행 기록 정보와 GPT 분석 결과를 담은 DTO
-   */
   @Transactional
-  public TravelAnalysisResponseDto createRetripFromImages(List<MultipartFile> images,
-      String memberId) {
-    validateImageCount(images);
+  public TravelAnalysisResponseDto createRetripFromImages(List<MultipartFile> images) {
 
+    validateMinimumImageCount(images);
+
+    images = adjustImageCountToMaximum(images);
     List<String> imageDataUrlsForGpt = new ArrayList<>();
-    List<ImageMetadata> allMetadata = new ArrayList<>();
+    List<ImageMetaData> allMetadata = new ArrayList<>();
+
+    prepareImageForProcessing(images, allMetadata, imageDataUrlsForGpt);
+
+    GpsCoordinate averageCoords = calculateAverageCoordinates(allMetadata);
+    AnalysisResponse analysisResponse = gptImageAnalysisService
+        .analyze(imageDataUrlsForGpt, averageCoords.latitude(), averageCoords.longitude());
+
+    try {
+      Retrip retrip = buildRetripFromAnalysis(analysisResponse);
+      updateRetripDetailsFromMetadata(retrip, allMetadata);
+      Retrip savedRetrip = retripRepository.save(retrip);
+
+      return buildTravelAnalysisResponseDto(savedRetrip, analysisResponse);
+    } catch (Exception e) {
+      log.error("GPT 분석 결과 처리 및 Retrip 생성 중 오류 발생", e);
+      throw new IllegalStateException("여행 기록 생성 중 오류가 발생했습니다.", e);
+    }
+  }
+
+  private void validateMinimumImageCount(List<MultipartFile> images) {
+    if (images == null || images.size() < minImageCount) {
+      throw new IllegalArgumentException("이미지는 최소 " + minImageCount + "장 이상 업로드해야 합니다.");
+    }
+  }
+
+  private List<MultipartFile> adjustImageCountToMaximum(List<MultipartFile> images) {
+    return images.size() <= maxImageCount ? images : images.subList(0, maxImageCount);
+  }
 
+  private void prepareImageForProcessing(
+      List<MultipartFile> images,
+      List<ImageMetaData> allMetadata,
+      List<String> imageDataUrlsForGpt
+  ) {
     for (MultipartFile image : images) {
       if (image.isEmpty()) {
         continue;
@@ -72,42 +104,12 @@ public TravelAnalysisResponseDto createRetripFromImages(List<MultipartFile> imag
       }
     }
 
-    if (allMetadata.size() < minImages) {
-      throw new IllegalStateException("유효한 이미지가 " + minImages + "장 미만입니다.");
-    }
-
-    GpsCoordinates averageCoords = calculateAverageCoordinates(allMetadata);
-    AnalysisResponse analysisResponse = gptImageAnalysisService.analyze(
-        imageDataUrlsForGpt, averageCoords.getLatitude(), averageCoords.getLongitude());
-
-    try {
-      Member member = null;
-      // memberId가 제공된 경우에만 회원 정보를 조회합니다.
-      if (memberId != null && !memberId.trim().isEmpty()) {
-        member = memberRepository.findByKakaoId(memberId)
-            .orElseThrow(
-                () -> new IllegalArgumentException("해당 ID를 가진 회원이 존재하지 않습니다: " + memberId));
-      }
-
-      Retrip retrip = buildRetripFromAnalysis(member, analysisResponse);
-      updateRetripDetailsFromMetadata(retrip, allMetadata);
-      Retrip savedRetrip = retripRepository.save(retrip);
-
-      return buildTravelAnalysisResponseDto(savedRetrip, analysisResponse);
-    } catch (Exception e) {
-      log.error("GPT 분석 결과 처리 및 Retrip 생성 중 오류 발생", e);
-      throw new IllegalStateException("여행 기록 생성 중 오류가 발생했습니다.", e);
+    if (allMetadata.size() < minImageCount) {
+      throw new IllegalStateException("유효한 이미지가 " + minImageCount + "장 미만입니다.");
     }
   }
 
-  /**
-   * GPT 분석 결과를 바탕으로 Retrip 엔티티의 기본 정보를 빌드합니다.
-   *
-   * @param member   Retrip의 소유자
-   * @param analysis GPT로부터 받은 분석 결과 객체
-   * @return GPT 분석 정보가 채워진 Retrip 엔티티
-   */
-  private Retrip buildRetripFromAnalysis(Member member, AnalysisResponse analysis) {
+  private Retrip buildRetripFromAnalysis(AnalysisResponse analysis) {
     AnalysisResponse.User user = analysis.getUser();
     AnalysisResponse.TripSummary summary = analysis.getTripSummary();
     AnalysisResponse.PhotoStats stats = analysis.getPhotoStats();
@@ -116,14 +118,12 @@ private Retrip buildRetripFromAnalysis(Member member, AnalysisResponse analysis)
       throw new IllegalStateException("GPT 분석 결과의 세부 정보(사용자, 요약, 통계)가 누락되었습니다.");
     }
 
-    // 에겐/테토 정보 추출
     AnalysisResponse.EgenTeto egenTeto = user.getEgenTeto();
     String egenTetoType = egenTeto != null ? egenTeto.getType() : null;
     String egenTetoSubtype = egenTeto != null ? egenTeto.getSubtype() : null;
     String egenTetoHashtag = egenTeto != null ? egenTeto.getHashtag() : null;
 
     Retrip retrip = Retrip.builder()
-        .member(member)
         .countryCode(user.getCountryCode())
         .mbti(user.getMbti())
         .egenTetoType(egenTetoType)
@@ -143,283 +143,59 @@ private Retrip buildRetripFromAnalysis(Member member, AnalysisResponse analysis)
             .emoji(dto.getEmoji())
             .place(dto.getPlace())
             .description(dto.getDescription())
-            .build());
+            .build()
+        );
       }
     }
-    return retrip;
-  }
 
-  /**
-   * 이미지 메타데이터 리스트를 분석하여 Retrip 엔티티의 통계 정보를 업데이트합니다. (여행 시작/종료일, 총 이동 거리, 주요 시간대, 주요 위치 좌표 등)
-   *
-   * @param retrip       정보를 업데이트할 Retrip 엔티티
-   * @param metadataList 이미지에서 추출한 메타데이터 리스트
-   */
-  private void updateRetripDetailsFromMetadata(Retrip retrip, List<ImageMetadata> metadataList) {
-    if (metadataList == null || metadataList.isEmpty()) {
-      return;
-    }
-    metadataList.sort(Comparator.comparing(ImageMetadata::getTakenDate,
-        Comparator.nullsLast(Comparator.naturalOrder())));
-    metadataList.stream().map(ImageMetadata::getTakenDate).filter(Objects::nonNull).findFirst()
-        .ifPresent(retrip::setStartDate);
-    metadataList.stream().map(ImageMetadata::getTakenDate).filter(Objects::nonNull)
-        .reduce((first, second) -> second)
-        .ifPresent(retrip::setEndDate);
-    retrip.setTotalDistance(calculateTotalDistance(metadataList));
-    retrip.setMainTimeSlot(analyzeMainTimeSlot(metadataList));
-    Map<String, Object> mainLocationInfo = analyzeMainLocation(metadataList);
-    retrip.setMainLocationLat((Double) mainLocationInfo.get("latitude"));
-    retrip.setMainLocationLng((Double) mainLocationInfo.get("longitude"));
-    retrip.setImageCount(metadataList.size());
+    return retrip;
   }
 
-  /**
-   * 저장된 Retrip 엔티티와 GPT 분석 결과를 조합하여 최종적으로 클라이언트에게 반환할 DTO를 생성합니다. 회원이 없는 경우를 처리합니다.
-   *
-   * @param retrip   DB에 저장된 Retrip 엔티티
-   * @param analysis GPT로부터 받은 분석 결과 객체
-   * @return 클라이언트에게 전달될 최종 응답 DTO
-   */
-  private TravelAnalysisResponseDto buildTravelAnalysisResponseDto(Retrip retrip,
-      AnalysisResponse analysis) {
-    // 회원이 존재하면 회원의 닉네임을, 없으면 "비회원"를 사용합니다.
-    String username =
-        (retrip.getMember() != null) ? retrip.getMember().getNickname() : "여행자님";
-
+  private TravelAnalysisResponseDto buildTravelAnalysisResponseDto(
+      Retrip retrip,
+      AnalysisResponse analysis
+  ) {
     return TravelAnalysisResponseDto.from(
         retrip.getId(),
         analysis,
         retrip,
-        username
+        DEFAULT_USERNAME
     );
   }
 
-  /**
-   * 업로드된 이미지의 개수가 유효한 범위(최소/최대) 내에 있는지 검증합니다.
-   *
-   * @param images 업로드된 이미지 파일 리스트
-   * @throws IllegalArgumentException 이미지 개수가 최소 요구량보다 적을 경우
-   */
-  private void validateImageCount(List<MultipartFile> images) {
-    if (images == null || images.size() < minImages) {
-      throw new IllegalArgumentException("이미지는 최소 " + minImages + "장 이상 업로드해야 합니다.");
-    }
-    if (images.size() > maxImages) {
-      images = images.subList(0, maxImages);
-    }
-  }
-
-  /**
-   * 이미지 메타데이터 리스트로부터 평균 GPS 좌표를 계산합니다.
-   *
-   * @param metadataList 이미지 메타데이터 리스트
-   * @return 평균 위도와 경도를 담은 GpsCoordinates 객체
-   */
-  private GpsCoordinates calculateAverageCoordinates(List<ImageMetadata> metadataList) {
-    List<GpsCoordinates> validCoords = metadataList.stream()
-        .filter(m -> m.latitude != null && m.longitude != null)
-        .map(m -> new GpsCoordinates(m.latitude, m.longitude))
-        .collect(Collectors.toList());
-    if (validCoords.isEmpty()) {
-      log.warn("유효한 GPS 좌표가 없어 기본값(0,0)을 사용합니다.");
-      return new GpsCoordinates(0.0, 0.0);
-    }
-    double avgLat = validCoords.stream().mapToDouble(GpsCoordinates::getLatitude).average()
-        .orElse(0.0);
-    double avgLng = validCoords.stream().mapToDouble(GpsCoordinates::getLongitude).average()
-        .orElse(0.0);
-    return new GpsCoordinates(avgLat, avgLng);
-  }
-
-  /**
-   * 이미지 파일의 InputStream에서 촬영 시간, GPS 정보 등의 메타데이터를 추출합니다.
-   *
-   * @param inputStream 이미지 파일의 InputStream
-   * @return 추출된 메타데이터를 담은 ImageMetadata 객체
-   */
-  private ImageMetadata extractMetadata(InputStream inputStream) {
-    ImageMetadata metadata = new ImageMetadata();
-    try {
-      Metadata rawMetadata = ImageMetadataReader.readMetadata(inputStream);
-      extractDateTimeInfo(rawMetadata, metadata);
-      extractGpsInfo(rawMetadata, metadata);
-    } catch (Exception e) {
-      log.error("메타데이터 추출 오류", e);
-    }
-    return metadata;
-  }
-
-  /**
-   * EXIF 데이터에서 원본 촬영 시간을 추출하여 ImageMetadata 객체에 설정합니다.
-   *
-   * @param rawMetadata 원본 메타데이터 객체
-   * @param metadata    정보를 저장할 ImageMetadata 객체
-   */
-  private void extractDateTimeInfo(Metadata rawMetadata, ImageMetadata metadata) {
-    ExifSubIFDDirectory exifDir = rawMetadata.getFirstDirectoryOfType(
-        ExifSubIFDDirectory.class);
-    if (exifDir != null) {
-      Date date = exifDir.getDate(ExifSubIFDDirectory.TAG_DATETIME_ORIGINAL);
-      if (date != null) {
-        metadata.takenDate = LocalDateTime.ofInstant(date.toInstant(),
-            ZoneId.systemDefault());
-      }
-    }
-  }
-
-  /**
-   * EXIF 데이터에서 GPS 좌표를 추출하여 ImageMetadata 객체에 설정합니다.
-   *
-   * @param rawMetadata 원본 메타데이터 객체
-   * @param metadata    정보를 저장할 ImageMetadata 객체
-   */
-  private void extractGpsInfo(Metadata rawMetadata, ImageMetadata metadata) {
-    GpsDirectory gpsDir = rawMetadata.getFirstDirectoryOfType(GpsDirectory.class);
-    if (gpsDir != null) {
-      GeoLocation geoLocation = gpsDir.getGeoLocation();
-      if (geoLocation != null && !geoLocation.isZero()) {
-        metadata.latitude = geoLocation.getLatitude();
-        metadata.longitude = geoLocation.getLongitude();
-      }
-    }
-  }
-
-  /**
-   * GPS 좌표가 있는 사진들의 촬영 순서에 따라 총 이동 거리를 계산합니다. (단위: km)
-   *
-   * @param metadataList 이미지 메타데이터 리스트
-   * @return 계산된 총 이동 거리 (km)
-   */
-  private double calculateTotalDistance(List<ImageMetadata> metadataList) {
-    double totalDistance = 0.0;
-    List<ImageMetadata> locData = metadataList.stream()
-        .filter(m -> m.latitude != null && m.longitude != null)
-        .collect(Collectors.toList());
-    for (int i = 0; i < locData.size() - 1; i++) {
-      ImageMetadata current = locData.get(i);
-      ImageMetadata next = locData.get(i + 1);
-      totalDistance += calculateDistance(current.getLatitude(), current.getLongitude(),
-          next.getLatitude(), next.getLongitude());
-    }
-    return totalDistance;
-  }
-
-  /**
-   * 두 GPS 좌표 간의 거리를 Haversine 공식을 사용하여 계산합니다. (단위: km)
-   *
-   * @param lat1 첫 번째 지점의 위도
-   * @param lon1 첫 번째 지점의 경도
-   * @param lat2 두 번째 지점의 위도
-   * @param lon2 두 번째 지점의 경도
-   * @return 두 지점 간의 거리 (km)
-   */
-  private double calculateDistance(double lat1, double lon1, double lat2, double lon2) {
-    final int R = 6371; // 지구의 반지름 (km)
-    double dLat = Math.toRadians(lat2 - lat1);
-    double dLon = Math.toRadians(lon2 - lon1);
-    double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
-        Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2)) *
-            Math.sin(dLon / 2) * Math.sin(dLon / 2);
-    double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
-    return R * c;
-  }
-
-  /**
-   * 사진들의 촬영 시간을 분석하여 가장 많이 촬영된 시간대(아침, 오후 등)를 결정합니다.
-   *
-   * @param metadataList 이미지 메타데이터 리스트
-   * @return 가장 빈도가 높은 TimeSlot
-   */
-  private TimeSlot analyzeMainTimeSlot(List<ImageMetadata> metadataList) {
+  private TimeSlot analyzeMainTimeSlot(List<ImageMetaData> metadataList) {
     if (metadataList.stream().allMatch(m -> m.getTakenDate() == null)) {
-      return TimeSlot.AFTERNOON; // 기본값
+      return AFTERNOON;
     }
     return metadataList.stream()
-        .map(ImageMetadata::getTakenDate)
+        .map(ImageMetaData::getTakenDate)
         .filter(Objects::nonNull)
         .collect(Collectors.groupingBy(TimeSlot::from, Collectors.counting()))
         .entrySet().stream()
         .max(Map.Entry.comparingByValue())
         .map(Map.Entry::getKey)
-        .orElse(TimeSlot.AFTERNOON);
+        .orElse(AFTERNOON);
   }
 
-  /**
-   * 사진들의 GPS 정보를 클러스터링하여 가장 큰 클러스터의 평균 좌표를 계산합니다. 이는 여행의 주요 활동 지역을 나타냅니다.
-   *
-   * @param metadataList 이미지 메타데이터 리스트
-   * @return 주요 위치의 위도와 경도를 담은 Map
-   */
-  private Map<String, Object> analyzeMainLocation(List<ImageMetadata> metadataList) {
-    List<ImageMetadata> locData = metadataList.stream()
-        .filter(m -> m.latitude != null && m.longitude != null)
-        .collect(Collectors.toList());
-    if (locData.isEmpty()) {
-      return Map.of("latitude", 0.0, "longitude", 0.0);
-    }
-    List<ImageMetadata> largestCluster = findLargestCluster(locData, 0.1); // 100m 반경
-    double avgLat = largestCluster.stream().mapToDouble(ImageMetadata::getLatitude).average()
-        .orElse(0.0);
-    double avgLng = largestCluster.stream().mapToDouble(ImageMetadata::getLongitude).average()
-        .orElse(0.0);
-    return Map.of("latitude", avgLat, "longitude", avgLng);
-  }
-
-  /**
-   * 간단한 클러스터링 알고리즘을 사용하여 주어진 임계값 내에서 가장 큰 사진 그룹을 찾습니다.
-   *
-   * @param metadataList GPS 정보가 있는 메타데이터 리스트
-   * @param thresholdKm  같은 클러스터로 간주할 거리 임계값 (km)
-   * @return 가장 큰 클러스터에 속하는 메타데이터 리스트
-   */
-  private List<ImageMetadata> findLargestCluster(List<ImageMetadata> metadataList,
-      double thresholdKm) {
-    if (metadataList.isEmpty()) {
-      return Collections.emptyList();
-    }
-    List<List<ImageMetadata>> clusters = new ArrayList<>();
-    for (ImageMetadata meta : metadataList) {
-      boolean foundCluster = false;
-      for (List<ImageMetadata> cluster : clusters) {
-        // 클러스터의 첫 번째 요소와 거리를 비교하여 클러스터에 추가할지 결정
-        double dist = calculateDistance(meta.getLatitude(), meta.getLongitude(),
-            cluster.get(0).getLatitude(), cluster.get(0).getLongitude());
-        if (dist <= thresholdKm) {
-          cluster.add(meta);
-          foundCluster = true;
-          break;
-        }
-      }
-      if (!foundCluster) {
-        // 어떤 클러스터에도 속하지 않으면 새로운 클러스터 생성
-        clusters.add(new ArrayList<>(Collections.singletonList(meta)));
-      }
+  public void updateRetripDetailsFromMetadata(Retrip retrip, List<ImageMetaData> metadataList) {
+    if (metadataList == null || metadataList.isEmpty()) {
+      return;
     }
-    // 가장 크기가 큰 클러스터 반환
-    return clusters.stream().max(Comparator.comparingInt(List::size))
-        .orElse(Collections.emptyList());
-  }
-
-  /**
-   * GPS 좌표(위도, 경도)를 저장하기 위한 내부 정적 클래스입니다.
-   */
-  @Data
-  @AllArgsConstructor
-  private static class GpsCoordinates {
-
-    double latitude;
-    double longitude;
-  }
+    metadataList.sort(Comparator.comparing(ImageMetaData::getTakenDate,
+        Comparator.nullsLast(Comparator.naturalOrder())));
 
-  /**
-   * 이미지에서 추출한 주요 메타데이터(촬영 시간, GPS)를 저장하기 위한 내부 정적 클래스입니다.
-   */
-  @Data
-  private static class ImageMetadata {
+    LocalDateTime startDate = findEarliestTakenDate(metadataList);
+    LocalDateTime endDate = findLatestTakenDate(metadataList);
+    Map<String, Object> mainLocationInfo = analyzeMainLocation(metadataList);
 
-    LocalDateTime takenDate;
-    Double latitude;
-    Double longitude;
+    retrip.updateRetripDetailsData(
+        startDate,
+        endDate,
+        metadataList.size(),
+        calculateTotalDistance(metadataList),
+        analyzeMainTimeSlot(metadataList),
+        (Double) mainLocationInfo.get("latitude"),
+        (Double) mainLocationInfo.get("longitude")
+    );
   }
 }
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/api/service/retrip/info/GpsCoordinate.java b/src/main/java/ssafy/retrip/api/service/retrip/info/GpsCoordinate.java
new file mode 100644
index 0000000..a83f1d4
--- /dev/null
+++ b/src/main/java/ssafy/retrip/api/service/retrip/info/GpsCoordinate.java
@@ -0,0 +1,8 @@
+package ssafy.retrip.api.service.retrip.info;
+
+public record GpsCoordinate(
+    double latitude,
+    double longitude
+) {
+
+}
diff --git a/src/main/java/ssafy/retrip/api/service/retrip/info/ImageMetaData.java b/src/main/java/ssafy/retrip/api/service/retrip/info/ImageMetaData.java
new file mode 100644
index 0000000..0c9238a
--- /dev/null
+++ b/src/main/java/ssafy/retrip/api/service/retrip/info/ImageMetaData.java
@@ -0,0 +1,23 @@
+package ssafy.retrip.api.service.retrip.info;
+
+import java.time.LocalDateTime;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+public class ImageMetaData {
+
+  private LocalDateTime takenDate;
+  private Double latitude;
+  private Double longitude;
+
+  public void updateTakenDate(LocalDateTime takenDate) {
+    this.takenDate = takenDate;
+  }
+
+  public void updateGeoLocation(Double latitude, Double longitude) {
+    this.latitude = latitude;
+    this.longitude = longitude;
+  }
+}
diff --git a/src/main/java/ssafy/retrip/api/service/retripReport/RetripReportService.java b/src/main/java/ssafy/retrip/api/service/retripReport/RetripReportService.java
deleted file mode 100644
index 2d90c67..0000000
--- a/src/main/java/ssafy/retrip/api/service/retripReport/RetripReportService.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package ssafy.retrip.api.service.retripReport;
-
-import lombok.RequiredArgsConstructor;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import ssafy.retrip.domain.retripReport.RetripReport;
-import ssafy.retrip.domain.retripReport.RetripReportRepository;
-
-@Service
-@RequiredArgsConstructor
-@Transactional(readOnly = true)
-public class RetripReportService {
-
-  private final RetripReportRepository retripReportRepository;
-
-  @Transactional
-  public void saveReportImage(String memberId, String imageUrl) {
-
-    RetripReport report = RetripReport.builder()
-        .memberId(memberId)
-        .imageUrl(imageUrl).build();
-
-    retripReportRepository.save(report);
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/aws/S3Uploader.java b/src/main/java/ssafy/retrip/aws/S3Uploader.java
deleted file mode 100644
index 257cdae..0000000
--- a/src/main/java/ssafy/retrip/aws/S3Uploader.java
+++ /dev/null
@@ -1,119 +0,0 @@
-package ssafy.retrip.aws;
-
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Component;
-import org.springframework.web.multipart.MultipartFile;
-import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
-import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
-import software.amazon.awssdk.core.sync.RequestBody;
-import software.amazon.awssdk.http.urlconnection.UrlConnectionHttpClient;
-import software.amazon.awssdk.regions.Region;
-import software.amazon.awssdk.services.s3.S3Client;
-import software.amazon.awssdk.services.s3.model.PutObjectRequest;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.util.Optional;
-import java.util.UUID;
-
-@Component
-public class S3Uploader {
-
-    private final S3Client s3Client;
-    private final String bucket;
-    private final String dirName;
-
-    public S3Uploader(
-            @Value("${spring.cloud.aws.credentials.access-key}") String accessKey,
-            @Value("${spring.cloud.aws.credentials.secret-key}") String secretKey,
-            @Value("${spring.cloud.aws.region.static}") String region,
-            @Value("${spring.cloud.aws.s3.bucket}") String bucket,
-            @Value("${spring.cloud.aws.s3.dir-name}") String dirName) {
-        
-        this.bucket = bucket;
-        this.dirName = dirName;
-        
-        // 명시적으로 UrlConnectionHttpClient 지정
-        this.s3Client = S3Client.builder()
-                .httpClient(UrlConnectionHttpClient.builder().build())
-                .region(Region.of(region))
-                .credentialsProvider(StaticCredentialsProvider.create(
-                        AwsBasicCredentials.create(accessKey, secretKey)))
-                .build();
-    }
-
-    public String upload(MultipartFile multipartFile, String dirName, String storedFileName) throws IOException {
-        File uploadFile = convert(multipartFile)
-                .orElseThrow(() -> new IllegalArgumentException("MultipartFile -> File 변환 실패"));
-        
-        return upload(uploadFile, dirName, storedFileName);
-    }
-
-    private String upload(File uploadFile, String dirName, String storedFileName) {
-        String uploadImageUrl = putS3(uploadFile, dirName, storedFileName);
-        
-        // 로컬에 생성된 파일 삭제
-        removeNewFile(uploadFile);
-        
-        return uploadImageUrl;
-    }
-
-    private String putS3(File uploadFile, String dirName, String fileName) {
-        // 폴더 구조 생성 (dirName/fileName 형태)
-        String key = dirName + "/" + fileName;
-
-        s3Client.putObject(PutObjectRequest.builder()
-                        .bucket(bucket)
-                        .key(key)
-                        .build(),
-                RequestBody.fromFile(uploadFile));
-
-        return s3Client.utilities().getUrl(builder -> builder.bucket(bucket).key(key)).toString();
-    }
-
-    private void removeNewFile(File targetFile) {
-        if (targetFile.delete()) {
-            System.out.println("파일이 삭제되었습니다.");
-        } else {
-            System.out.println("파일이 삭제되지 못했습니다.");
-        }
-    }
-
-    // 테스트를 위해 protected로 변경
-    public Optional<File> convert(MultipartFile file) throws IOException {
-        if (file == null || file.isEmpty()) {
-            return Optional.empty();
-        }
-
-        // 1. 원본 파일명 가져오기
-        String originalFilename = file.getOriginalFilename();
-        if (originalFilename == null || originalFilename.isBlank()) {
-            originalFilename = "unnamed-file";
-        }
-
-        // 2. 안전한 임시 파일 생성 (UUID 사용으로 중복 방지)
-        String fileExtension = originalFilename.contains(".")
-                ? originalFilename.substring(originalFilename.lastIndexOf("."))
-                : "";
-
-        File tempFile = File.createTempFile(
-                UUID.randomUUID().toString(),
-                fileExtension,
-                new File(System.getProperty("java.io.tmpdir"))
-        );
-
-        // 3. 파일 내용 쓰기
-        try (FileOutputStream fos = new FileOutputStream(tempFile)) {
-            fos.write(file.getBytes());
-        } catch (IOException e) {
-            // 오류 발생 시 파일 삭제 시도
-            if (!tempFile.delete()) {
-                tempFile.deleteOnExit();
-            }
-            throw new IOException("파일 변환 중 오류 발생: " + e.getMessage(), e);
-        }
-
-        return Optional.of(tempFile);
-    }
-}
diff --git a/src/main/java/ssafy/retrip/config/SecurityConfig.java b/src/main/java/ssafy/retrip/config/SecurityConfig.java
index e905fc3..7980c77 100644
--- a/src/main/java/ssafy/retrip/config/SecurityConfig.java
+++ b/src/main/java/ssafy/retrip/config/SecurityConfig.java
@@ -3,7 +3,6 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.security.config.Customizer;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configurers.CsrfConfigurer;
@@ -14,20 +13,14 @@
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
-import ssafy.retrip.api.service.oauth.CustomOAuth2UserService;
 import ssafy.retrip.filter.SessionAuthenticationFilter;
-import ssafy.retrip.handler.OAuth2AuthenticationFailureHandler;
-import ssafy.retrip.handler.OAuth2AuthenticationSuccessHandler;
 
 @Configuration
 @EnableWebSecurity
 @RequiredArgsConstructor
 public class SecurityConfig {
 
-  private final CustomOAuth2UserService customOAuth2UserService;
   private final SessionAuthenticationFilter sessionAuthenticationFilter;
-  private final OAuth2AuthenticationSuccessHandler oAuth2AuthenticationSuccessHandler;
-  private final OAuth2AuthenticationFailureHandler oAuth2AuthenticationFailureHandler;
 
   @Bean
   public BCryptPasswordEncoder passwordEncoder() {
@@ -48,16 +41,6 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
             .anyRequest().permitAll()
         );
 
-    http
-        .oauth2Client(Customizer.withDefaults())
-        .oauth2Login(oauth2 -> oauth2
-            .successHandler(oAuth2AuthenticationSuccessHandler)
-            .failureHandler(oAuth2AuthenticationFailureHandler)
-            .userInfoEndpoint(userInfo -> userInfo
-                .oidcUserService(customOAuth2UserService)
-            )
-        );
-
     http
         .addFilterBefore(sessionAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);
 
@@ -67,7 +50,6 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                 .sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED)
                 .maximumSessions(1)
                 .maxSessionsPreventsLogin(true)
-                .expiredUrl("/login?expired=true")
         );
 
     return http.build();
diff --git a/src/main/java/ssafy/retrip/domain/member/LoginType.java b/src/main/java/ssafy/retrip/domain/member/LoginType.java
deleted file mode 100644
index 529d9d2..0000000
--- a/src/main/java/ssafy/retrip/domain/member/LoginType.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package ssafy.retrip.domain.member;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-
-@Getter
-@RequiredArgsConstructor
-public enum LoginType {
-
-  KAKAO("KAKAO"),
-  GOOGLE("GOOGLE"),
-  NAVER("NAVER"),
-  APPLE("APPLE"),
-  NORMAL("NORMAL");
-
-  private final String type;
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/domain/member/Member.java b/src/main/java/ssafy/retrip/domain/member/Member.java
deleted file mode 100644
index 0562e3e..0000000
--- a/src/main/java/ssafy/retrip/domain/member/Member.java
+++ /dev/null
@@ -1,83 +0,0 @@
-package ssafy.retrip.domain.member;
-
-import jakarta.persistence.*;
-import java.io.Serial;
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.List;
-
-import lombok.AccessLevel;
-import lombok.Builder;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import ssafy.retrip.domain.BaseEntity;
-import ssafy.retrip.domain.retrip.Retrip;
-
-@Getter
-@Entity
-@Table(name = "members")
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Member extends BaseEntity implements Serializable {
-
-  @Serial
-  private static final long serialVersionUID = 1L;
-
-  @Id
-  @GeneratedValue(strategy = GenerationType.IDENTITY)
-  private Long id;
-
-  @Column(unique = true)
-  private String userId;
-
-  private String password;
-
-  @Column(unique = true)
-  private String kakaoId;
-
-  private String nickname;
-
-  @Column(unique = true)
-  private String email;
-
-  @Enumerated(EnumType.STRING)
-  private LoginType loginType;
-
-  @OneToMany(mappedBy = "member", cascade = CascadeType.ALL, orphanRemoval = true)
-  private List<Retrip> retrips = new ArrayList<>();
-
-  @Builder
-  private Member(String userId, String password, String kakaoId, String nickname, String email,
-      LoginType loginType) {
-    this.userId = userId;
-    this.password = password;
-    this.kakaoId = kakaoId;
-    this.email = email;
-    this.nickname = nickname;
-    this.loginType = loginType;
-    this.retrips = new ArrayList<>();
-  }
-
-  /**
-   * Retrip 추가 메서드 (양방향 관계 처리)
-   */
-  public void addRetrip(Retrip retrip) {
-    if (retrip != null && !this.retrips.contains(retrip)) {
-      this.retrips.add(retrip);
-      if (retrip.getMember() != this) {
-        retrip.setMember(this);
-      }
-    }
-  }
-
-  public boolean isNormalMember() {
-    return this.loginType == LoginType.NORMAL;
-  }
-
-  public boolean isKakaoMember() {
-    return this.loginType == LoginType.KAKAO;
-  }
-
-  public void updatePassword(String newPassword) {
-    this.password = newPassword;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/domain/member/MemberRepository.java b/src/main/java/ssafy/retrip/domain/member/MemberRepository.java
deleted file mode 100644
index d0fe8e2..0000000
--- a/src/main/java/ssafy/retrip/domain/member/MemberRepository.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package ssafy.retrip.domain.member;
-
-import java.util.Optional;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public interface MemberRepository extends JpaRepository<Member, Long> {
-
-  Optional<Member> findByKakaoId(String kakaoId);
-
-  Optional<Member> findByUserId(String userId);
-
-  Optional<Member> findByEmail(String email);
-
-  boolean existsByUserId(String userId);
-}
diff --git a/src/main/java/ssafy/retrip/domain/place/RecommendationPlace.java b/src/main/java/ssafy/retrip/domain/place/RecommendationPlace.java
new file mode 100644
index 0000000..b48695b
--- /dev/null
+++ b/src/main/java/ssafy/retrip/domain/place/RecommendationPlace.java
@@ -0,0 +1,45 @@
+package ssafy.retrip.domain.place;
+
+import static lombok.AccessLevel.*;
+
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import jakarta.persistence.*;
+import lombok.*;
+import ssafy.retrip.domain.BaseEntity;
+import ssafy.retrip.domain.retrip.Retrip;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = PROTECTED)
+@Table(name = "recommendation_places")
+public class RecommendationPlace extends BaseEntity {
+
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  private Long id;
+
+  @Column(nullable = false)
+  private String emoji;
+
+  @Column(nullable = false)
+  private String place;
+
+  @Column(columnDefinition = "TEXT", nullable = false)
+  private String description;
+
+  @ManyToOne(fetch = FetchType.LAZY)
+  @JoinColumn(name = "retrip_id")
+  @JsonBackReference
+  private Retrip retrip;
+
+  @Builder
+  private RecommendationPlace(String emoji, String place, String description) {
+    this.emoji = emoji;
+    this.place = place;
+    this.description = description;
+  }
+
+  public void updateRetrip(Retrip retrip) {
+    this.retrip = retrip;
+  }
+}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/domain/retrip/RecommendationPlace.java b/src/main/java/ssafy/retrip/domain/retrip/RecommendationPlace.java
deleted file mode 100644
index 2324d0c..0000000
--- a/src/main/java/ssafy/retrip/domain/retrip/RecommendationPlace.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package ssafy.retrip.domain.retrip;
-
-import com.fasterxml.jackson.annotation.JsonBackReference;
-import jakarta.persistence.*;
-import lombok.*;
-import ssafy.retrip.domain.BaseEntity;
-
-@Entity
-@Getter
-@Setter // 서비스 로직에서 연관관계 설정을 위해 추가
-@NoArgsConstructor
-@AllArgsConstructor
-@Builder
-@Table(name = "recommendation_places")
-public class RecommendationPlace extends BaseEntity {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    @Column(nullable = false)
-    private String emoji;
-
-    @Column(nullable = false)
-    private String place;
-
-    @Column(columnDefinition = "TEXT", nullable = false)
-    private String description;
-
-    // Retrip과의 N:1 연관관계
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "retrip_id")
-    @JsonBackReference // 순환 참조 방지
-    private Retrip retrip;
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/domain/retrip/Retrip.java b/src/main/java/ssafy/retrip/domain/retrip/Retrip.java
index 430eeb5..277e6b1 100644
--- a/src/main/java/ssafy/retrip/domain/retrip/Retrip.java
+++ b/src/main/java/ssafy/retrip/domain/retrip/Retrip.java
@@ -1,64 +1,85 @@
 package ssafy.retrip.domain.retrip;
 
 import com.fasterxml.jackson.annotation.JsonManagedReference;
-import jakarta.persistence.*;
-import lombok.*;
-import ssafy.retrip.domain.BaseEntity;
-import ssafy.retrip.domain.member.Member;
-
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import ssafy.retrip.domain.BaseEntity;
+import ssafy.retrip.domain.place.RecommendationPlace;
 
 @Entity
 @Getter
-@Setter
+@Builder
 @NoArgsConstructor
 @AllArgsConstructor
-@Builder
 @Table(name = "retrips")
 public class Retrip extends BaseEntity {
 
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  private Long id;
 
-    // --- GPT 분석 결과 ---
-    private String countryCode;
-    private String mbti;
-    private String egenTetoType; // EGEN 또는 TETO
-    private String egenTetoSubtype; // 세부 유형 (예: "귀족의 피가 흐르는 에겐녀")
-    private String egenTetoHashtag; // #에겐 또는 #테토
-    private String summaryLine;
-    private String hashtag;
-    private String favoriteSubjects; // 쉼표로 구분된 문자열
-    private String favoritePhotoSpot; // GPT가 추정한 주요 촬영 장소명
-    @Column(columnDefinition = "TEXT")
-    private String keywords; // 쉼표로 구분된 문자열
+  // --- GPT 분석 결과 ---
+  private String countryCode;
+  private String mbti;
+  private String egenTetoType;
+  private String egenTetoSubtype;
+  private String egenTetoHashtag;
+  private String summaryLine;
+  private String hashtag;
+  private String favoriteSubjects;
+  private String favoritePhotoSpot;
+  @Column(columnDefinition = "TEXT")
+  private String keywords;
 
-    // --- 이미지 메타데이터 기반 통계 ---
-    private LocalDateTime startDate;
-    private LocalDateTime endDate;
-    private Integer imageCount;
-    private Double totalDistance;
-    @Enumerated(EnumType.STRING)
-    private TimeSlot mainTimeSlot;
-    private Double mainLocationLat; // 주로 촬영된 위치의 위도
-    private Double mainLocationLng; // 주로 촬영된 위치의 경도
+  // --- 이미지 메타데이터 기반 통계 ---
+  private LocalDateTime startDate;
+  private LocalDateTime endDate;
+  private Integer imageCount;
+  private Double totalDistance;
+  @Enumerated(EnumType.STRING)
+  private TimeSlot mainTimeSlot;
+  private Double mainLocationLat;
+  private Double mainLocationLng;
 
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "member_id")
-    private Member member;
+  @OneToMany(mappedBy = "retrip", cascade = CascadeType.ALL, orphanRemoval = true)
+  @JsonManagedReference
+  private final List<RecommendationPlace> recommendations = new ArrayList<>();
 
-    // 추천 장소와의 1:N 연관관계
-    @OneToMany(mappedBy = "retrip", cascade = CascadeType.ALL, orphanRemoval = true)
-    @Builder.Default
-    @JsonManagedReference
-    private List<RecommendationPlace> recommendations = new ArrayList<>();
+  public void addRecommendation(RecommendationPlace recommendation) {
+    recommendations.add(recommendation);
+    recommendation.updateRetrip(this);
+  }
 
-    // 연관관계 편의 메서드
-    public void addRecommendation(RecommendationPlace recommendation) {
-        recommendations.add(recommendation);
-        recommendation.setRetrip(this);
-    }
+  public void updateRetripDetailsData(
+      LocalDateTime startDate,
+      LocalDateTime endDate,
+      Integer imageCount,
+      Double totalDistance,
+      TimeSlot mainTimeSlot,
+      Double mainLocationLat,
+      Double mainLocationLng
+  ) {
+    this.startDate = startDate;
+    this.endDate = endDate;
+    this.imageCount = imageCount;
+    this.totalDistance = totalDistance;
+    this.mainTimeSlot = mainTimeSlot;
+    this.mainLocationLat = mainLocationLat;
+    this.mainLocationLng = mainLocationLng;
+  }
 }
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/domain/retrip/RetripRepository.java b/src/main/java/ssafy/retrip/domain/retrip/RetripRepository.java
index 6a4a360..99f8ea8 100644
--- a/src/main/java/ssafy/retrip/domain/retrip/RetripRepository.java
+++ b/src/main/java/ssafy/retrip/domain/retrip/RetripRepository.java
@@ -5,6 +5,5 @@
 
 @Repository
 public interface RetripRepository extends JpaRepository<Retrip, Long> {
-    // 기본 CRUD 메서드는 JpaRepository에서 제공됨
-    // 필요한 추가 쿼리 메서드는 여기에 정의
+
 }
diff --git a/src/main/java/ssafy/retrip/domain/retrip/TimeSlot.java b/src/main/java/ssafy/retrip/domain/retrip/TimeSlot.java
index 73e5b08..6fe303f 100644
--- a/src/main/java/ssafy/retrip/domain/retrip/TimeSlot.java
+++ b/src/main/java/ssafy/retrip/domain/retrip/TimeSlot.java
@@ -5,73 +5,44 @@
 
 @Slf4j
 public enum TimeSlot {
-    DAWN(0, 5, "새벽(00:00-06:00)"),
-    MORNING(6, 11, "오전(06:00-12:00)"),
-    AFTERNOON(12, 17, "오후(12:00-18:00)"),
-    NIGHT(18, 23, "밤(18:00-24:00)");
+  DAWN(0, 5, "새벽(00:00-06:00)"),
+  MORNING(6, 11, "오전(06:00-12:00)"),
+  AFTERNOON(12, 17, "오후(12:00-18:00)"),
+  NIGHT(18, 23, "밤(18:00-24:00)");
 
-    private final int startHour;
-    private final int endHour;
-    private final String description;
+  private final int startHour;
+  private final int endHour;
+  private final String description;
 
-    TimeSlot(int startHour, int endHour, String description) {
-        this.startHour = startHour;
-        this.endHour = endHour;
-        this.description = description;
-    }
+  TimeSlot(int startHour, int endHour, String description) {
+    this.startHour = startHour;
+    this.endHour = endHour;
+    this.description = description;
+  }
 
-    /**
-     * 주어진 시간이 이 시간대에 속하는지 확인
-     */
-    public boolean contains(LocalDateTime dateTime) {
-        int hour = dateTime.getHour();
-        return hour >= startHour && hour <= endHour;
+  public static TimeSlot from(LocalDateTime dateTime) {
+    if (dateTime == null) {
+      log.warn("시간 정보가 없습니다. 기본 시간대(AFTERNOON)를 사용합니다.");
+      return AFTERNOON;
     }
 
-    /**
-     * 주어진 시간에 해당하는 시간대 반환
-     */
-    public static TimeSlot from(LocalDateTime dateTime) {
-        if (dateTime == null) {
-            log.warn("시간 정보가 없습니다. 기본 시간대(AFTERNOON)를 사용합니다.");
-            return AFTERNOON;
-        }
-        
-        int hour = dateTime.getHour();
-        return fromHour(hour);
-    }
-    
-    /**
-     * 시간값(0-23)을 기준으로 TimeSlot 반환
-     */
-    private static TimeSlot fromHour(int hour) {
-        if (hour < 0 || hour > 23) {
-            log.warn("비정상적인 시간값: {}. 범위(0-23)를 벗어났습니다. 기본값 AFTERNOON 사용.", hour);
-            return AFTERNOON;
-        }
-        
-        for (TimeSlot slot : values()) {
-            if (hour >= slot.startHour && hour <= slot.endHour) {
-                return slot;
-            }
-        }
-        
-        // 기본값으로 AFTERNOON 반환 (비정상 케이스)
-        log.error("시간대 결정 로직 오류. 시간값 {}에 해당하는 시간대를 찾지 못했습니다.", hour);
-        return AFTERNOON;
-    }
+    int hour = dateTime.getHour();
+    return fromHour(hour);
+  }
 
-    /**
-     * 시간대에 대한 설명 반환
-     */
-    public String getDescription() {
-        return description;
+  private static TimeSlot fromHour(int hour) {
+    if (hour < 0 || hour > 23) {
+      log.warn("비정상적인 시간값: {}. 범위(0-23)를 벗어났습니다. 기본값 AFTERNOON 사용.", hour);
+      return AFTERNOON;
     }
-    
-    /**
-     * 디버깅용 시간 정보 출력
-     */
-    public String getTimeRange() {
-        return String.format("%02d:00-%02d:59", startHour, endHour);
+
+    for (TimeSlot slot : values()) {
+      if (hour >= slot.startHour && hour <= slot.endHour) {
+        return slot;
+      }
     }
+
+    log.error("시간대 결정 로직 오류. 시간값 {}에 해당하는 시간대를 찾지 못했습니다.", hour);
+    return AFTERNOON;
+  }
 }
diff --git a/src/main/java/ssafy/retrip/domain/retripReport/RetripReport.java b/src/main/java/ssafy/retrip/domain/retripReport/RetripReport.java
deleted file mode 100644
index 7d5d03c..0000000
--- a/src/main/java/ssafy/retrip/domain/retripReport/RetripReport.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package ssafy.retrip.domain.retripReport;
-
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import jakarta.persistence.Table;
-import lombok.AccessLevel;
-import lombok.Builder;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import ssafy.retrip.domain.BaseEntity;
-
-@Getter
-@Entity
-@Table(name = "retrip_reports")
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class RetripReport extends BaseEntity {
-
-  @Id
-  @GeneratedValue(strategy = GenerationType.IDENTITY)
-  private Long id;
-
-  private String memberId;
-
-  private String imageUrl;
-
-
-  @Builder
-  private RetripReport(String memberId, String imageUrl) {
-    this.memberId = memberId;
-    this.imageUrl = imageUrl;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/domain/retripReport/RetripReportRepository.java b/src/main/java/ssafy/retrip/domain/retripReport/RetripReportRepository.java
deleted file mode 100644
index b006c2a..0000000
--- a/src/main/java/ssafy/retrip/domain/retripReport/RetripReportRepository.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package ssafy.retrip.domain.retripReport;
-
-import java.util.List;
-import java.util.Optional;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.Query;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public interface RetripReportRepository extends JpaRepository<RetripReport, Long> {
-
-  @Query(nativeQuery = true,
-      value = "SELECT * "
-              + "FROM retrip_reports "
-              + "WHERE member_id = :memberId"
-  )
-  Optional<List<RetripReport>> findByMemberId(String memberId);
-
-}
diff --git a/src/main/java/ssafy/retrip/filter/SessionAuthenticationFilter.java b/src/main/java/ssafy/retrip/filter/SessionAuthenticationFilter.java
index b0463d7..81ec5f3 100644
--- a/src/main/java/ssafy/retrip/filter/SessionAuthenticationFilter.java
+++ b/src/main/java/ssafy/retrip/filter/SessionAuthenticationFilter.java
@@ -4,7 +4,6 @@
 import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import jakarta.servlet.http.HttpSession;
 import java.io.IOException;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
@@ -17,15 +16,6 @@ public class SessionAuthenticationFilter extends OncePerRequestFilter {
   @Override
   protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
       FilterChain filterChain) throws ServletException, IOException {
-
-    HttpSession session = request.getSession();
-//    String kakaoId = (String) session.getAttribute("member");
-//
-//    if (isEmpty(kakaoId)) {
-//      response.sendRedirect("/login");
-//      return;
-//    }
-
     filterChain.doFilter(request, response);
   }
 }
diff --git a/src/main/java/ssafy/retrip/global/exception/GlobalExceptionHandler.java b/src/main/java/ssafy/retrip/global/exception/GlobalExceptionHandler.java
index d20d02d..d8891f6 100644
--- a/src/main/java/ssafy/retrip/global/exception/GlobalExceptionHandler.java
+++ b/src/main/java/ssafy/retrip/global/exception/GlobalExceptionHandler.java
@@ -44,13 +44,4 @@ public ResponseEntity<Map<String, String>> handleGenericException(Exception e) {
         errorResponse.put("message", e.getMessage());
         return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(errorResponse);
     }
-
-    @ExceptionHandler(NicknameAlreadyExistsException.class)
-    public ResponseEntity<Map<String, String>> handleNicknameAlreadyExistsException(
-        NicknameAlreadyExistsException e) {
-        Map<String, String> errorResponse = new HashMap<>();
-        errorResponse.put("error", "중복된 아이디");
-        errorResponse.put("message", e.getMessage());
-        return ResponseEntity.status(HttpStatus.CONFLICT).body(errorResponse);
-    }
 }
diff --git a/src/main/java/ssafy/retrip/global/exception/NicknameAlreadyExistsException.java b/src/main/java/ssafy/retrip/global/exception/NicknameAlreadyExistsException.java
deleted file mode 100644
index 101ba87..0000000
--- a/src/main/java/ssafy/retrip/global/exception/NicknameAlreadyExistsException.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package ssafy.retrip.global.exception;
-
-import org.springframework.http.HttpStatus;
-import org.springframework.web.bind.annotation.ResponseStatus;
-
-@ResponseStatus(HttpStatus.CONFLICT)
-public class NicknameAlreadyExistsException extends RuntimeException {
-  public NicknameAlreadyExistsException(String message) {
-    super(message);
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/handler/OAuth2AuthenticationFailureHandler.java b/src/main/java/ssafy/retrip/handler/OAuth2AuthenticationFailureHandler.java
deleted file mode 100644
index 368e480..0000000
--- a/src/main/java/ssafy/retrip/handler/OAuth2AuthenticationFailureHandler.java
+++ /dev/null
@@ -1,41 +0,0 @@
-package ssafy.retrip.handler;
-
-import jakarta.servlet.ServletException;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpServletResponse;
-import java.io.IOException;
-import java.net.URLEncoder;
-import java.nio.charset.StandardCharsets;
-import lombok.RequiredArgsConstructor;
-import org.springframework.security.core.AuthenticationException;
-import org.springframework.security.web.RedirectStrategy;
-import org.springframework.security.web.authentication.AuthenticationFailureHandler;
-import org.springframework.stereotype.Component;
-import org.springframework.web.util.UriComponentsBuilder;
-
-@Component
-@RequiredArgsConstructor
-public class OAuth2AuthenticationFailureHandler implements AuthenticationFailureHandler {
-
-  private final RedirectStrategy redirectStrategy;
-
-  private static final String REDIRECT_URL = "/login/callback";
-  private static final String FRONT_SERVER = "http://localhost:5173";
-
-  @Override
-  public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
-      AuthenticationException exception) throws IOException, ServletException {
-
-    String errorMessage = URLEncoder.encode(exception.getMessage(), StandardCharsets.UTF_8);
-    String targetUrl = getTargetUrl(errorMessage);
-
-    redirectStrategy.sendRedirect(request, response, targetUrl);
-  }
-
-  private String getTargetUrl(String errorMessage) {
-    return UriComponentsBuilder
-        .fromUriString(FRONT_SERVER + REDIRECT_URL)
-        .queryParam("error", errorMessage)
-        .build().toUriString();
-  }
-}
diff --git a/src/main/java/ssafy/retrip/handler/OAuth2AuthenticationSuccessHandler.java b/src/main/java/ssafy/retrip/handler/OAuth2AuthenticationSuccessHandler.java
deleted file mode 100644
index 9570624..0000000
--- a/src/main/java/ssafy/retrip/handler/OAuth2AuthenticationSuccessHandler.java
+++ /dev/null
@@ -1,59 +0,0 @@
-package ssafy.retrip.handler;
-
-import jakarta.servlet.ServletException;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpServletResponse;
-import jakarta.servlet.http.HttpSession;
-import java.io.IOException;
-import lombok.RequiredArgsConstructor;
-import org.springframework.security.core.Authentication;
-import org.springframework.security.oauth2.core.oidc.user.OidcUser;
-import org.springframework.security.web.RedirectStrategy;
-import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
-import org.springframework.stereotype.Component;
-import ssafy.retrip.domain.member.LoginType;
-import ssafy.retrip.domain.member.Member;
-import ssafy.retrip.domain.member.MemberRepository;
-
-@Component
-@RequiredArgsConstructor
-public class OAuth2AuthenticationSuccessHandler implements AuthenticationSuccessHandler {
-
-  private final MemberRepository memberRepository;
-  private final RedirectStrategy redirectStrategy;
-
-  private static final String REDIRECT_URL = "http://localhost:5173/photo";
-  private static final String SESSION_MEMBER_KEY = "member";
-
-  @Override
-  public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
-      Authentication authentication) throws IOException, ServletException {
-
-    OidcUser oidcUser = (OidcUser) authentication.getPrincipal();
-
-    Member member = findMember(oidcUser);
-
-    HttpSession session = request.getSession();
-    session.setAttribute(SESSION_MEMBER_KEY, member.getKakaoId());
-
-    redirectStrategy.sendRedirect(request, response, REDIRECT_URL);
-  }
-
-  private Member findMember(OidcUser oidcUser) {
-
-    String kakaoId = oidcUser.getSubject();
-    String email = oidcUser.getEmail();
-    String nickname = oidcUser.getAttribute("nickname");
-
-    return memberRepository.findByKakaoId(kakaoId).orElseGet(
-        () -> {
-          Member m = Member.builder()
-              .kakaoId(kakaoId)
-              .email(email)
-              .nickname(nickname)
-              .loginType(LoginType.KAKAO).build();
-
-          return memberRepository.save(m);
-        });
-  }
-}
diff --git a/src/main/java/ssafy/retrip/utils/CoordinateUtil.java b/src/main/java/ssafy/retrip/utils/CoordinateUtil.java
new file mode 100644
index 0000000..e3cf619
--- /dev/null
+++ b/src/main/java/ssafy/retrip/utils/CoordinateUtil.java
@@ -0,0 +1,98 @@
+package ssafy.retrip.utils;
+
+import static lombok.AccessLevel.PRIVATE;
+import static ssafy.retrip.utils.DistanceUtil.calculateDistance;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Map;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import ssafy.retrip.api.service.retrip.info.GpsCoordinate;
+import ssafy.retrip.api.service.retrip.info.ImageMetaData;
+
+@Slf4j
+@NoArgsConstructor(access = PRIVATE)
+public class CoordinateUtil {
+
+  public static final double SEARCH_RADIUS_KM = 0.1;
+  public static final double DEFAULT_LATITUDE = 0.0;
+  public static final double DEFAULT_LONGITUDE = 0.0;
+
+  public static GpsCoordinate calculateAverageCoordinates(List<ImageMetaData> metadataList) {
+
+    List<GpsCoordinate> validCoords = metadataList.stream()
+        .filter(m -> m.getLatitude() != null && m.getLongitude() != null)
+        .map(m -> new GpsCoordinate(m.getLatitude(), m.getLongitude()))
+        .toList();
+
+    if (validCoords.isEmpty()) {
+      log.warn("유효한 GPS 좌표가 없어 기본값(0, 0)을 사용합니다.");
+      return new GpsCoordinate(DEFAULT_LATITUDE, DEFAULT_LONGITUDE);
+    }
+
+    double avgLat = validCoords.stream()
+        .mapToDouble(GpsCoordinate::latitude)
+        .average()
+        .orElse(DEFAULT_LATITUDE);
+
+    double avgLng = validCoords.stream()
+        .mapToDouble(GpsCoordinate::longitude)
+        .average()
+        .orElse(DEFAULT_LONGITUDE);
+
+    return new GpsCoordinate(avgLat, avgLng);
+  }
+
+  public static Map<String, Object> analyzeMainLocation(List<ImageMetaData> metadataList) {
+
+    List<ImageMetaData> locData = metadataList.stream()
+        .filter(m -> m.getLatitude() != null && m.getLongitude() != null)
+        .toList();
+
+    if (locData.isEmpty()) {
+      return Map.of("latitude", DEFAULT_LATITUDE, "longitude", DEFAULT_LONGITUDE);
+    }
+
+    List<ImageMetaData> largestCluster = findLargestCluster(locData);
+    double avgLat = largestCluster.stream()
+        .mapToDouble(ImageMetaData::getLatitude)
+        .average()
+        .orElse(DEFAULT_LATITUDE);
+
+    double avgLng = largestCluster.stream()
+        .mapToDouble(ImageMetaData::getLongitude)
+        .average()
+        .orElse(DEFAULT_LONGITUDE);
+
+    return Map.of("latitude", avgLat, "longitude", avgLng);
+  }
+
+  private static List<ImageMetaData> findLargestCluster(List<ImageMetaData> metadataList) {
+    if (metadataList.isEmpty()) {
+      return Collections.emptyList();
+    }
+    List<List<ImageMetaData>> clusters = new ArrayList<>();
+    for (ImageMetaData meta : metadataList) {
+      boolean foundCluster = false;
+      for (List<ImageMetaData> cluster : clusters) {
+        double dist = calculateDistance(meta.getLatitude(), meta.getLongitude(),
+            cluster.get(0).getLatitude(), cluster.get(0).getLongitude());
+        if (dist <= SEARCH_RADIUS_KM) {
+          cluster.add(meta);
+          foundCluster = true;
+          break;
+        }
+      }
+      if (!foundCluster) {
+        clusters.add(new ArrayList<>(Collections.singletonList(meta)));
+      }
+    }
+
+    return clusters.stream()
+        .max(Comparator.comparingInt(List::size))
+        .orElse(Collections.emptyList());
+  }
+}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/utils/DateUtil.java b/src/main/java/ssafy/retrip/utils/DateUtil.java
new file mode 100644
index 0000000..3a28585
--- /dev/null
+++ b/src/main/java/ssafy/retrip/utils/DateUtil.java
@@ -0,0 +1,29 @@
+package ssafy.retrip.utils;
+
+import static lombok.AccessLevel.PRIVATE;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Objects;
+import lombok.NoArgsConstructor;
+import ssafy.retrip.api.service.retrip.info.ImageMetaData;
+
+@NoArgsConstructor(access = PRIVATE)
+public class DateUtil {
+
+  public static LocalDateTime findLatestTakenDate(List<ImageMetaData> metadataList) {
+    return metadataList.stream()
+        .map(ImageMetaData::getTakenDate)
+        .filter(Objects::nonNull)
+        .reduce((first, second) -> second)
+        .orElse(LocalDateTime.now());
+  }
+
+  public static LocalDateTime findEarliestTakenDate(List<ImageMetaData> metadataList) {
+    return metadataList.stream()
+        .map(ImageMetaData::getTakenDate)
+        .filter(Objects::nonNull)
+        .findFirst()
+        .orElse(LocalDateTime.now());
+  }
+}
\ No newline at end of file
diff --git a/src/main/java/ssafy/retrip/utils/DistanceUtil.java b/src/main/java/ssafy/retrip/utils/DistanceUtil.java
new file mode 100644
index 0000000..827a35e
--- /dev/null
+++ b/src/main/java/ssafy/retrip/utils/DistanceUtil.java
@@ -0,0 +1,40 @@
+package ssafy.retrip.utils;
+
+import static lombok.AccessLevel.PRIVATE;
+
+import java.util.List;
+import lombok.NoArgsConstructor;
+import ssafy.retrip.api.service.retrip.info.ImageMetaData;
+
+@NoArgsConstructor(access = PRIVATE)
+public class DistanceUtil {
+
+  public static final int EARTH_RADIUS_KM = 6371;
+
+  public static double calculateDistance(double lat1, double lon1, double lat2, double lon2) {
+    double dLat = Math.toRadians(lat2 - lat1);
+    double dLon = Math.toRadians(lon2 - lon1);
+    double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
+               Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2)) *
+               Math.sin(dLon / 2) * Math.sin(dLon / 2);
+    double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
+    return EARTH_RADIUS_KM * c;
+  }
+
+  public static double calculateTotalDistance(List<ImageMetaData> metadataList) {
+
+    double totalDistance = 0.0;
+    List<ImageMetaData> locData = metadataList.stream()
+        .filter(m -> m.getLatitude() != null && m.getLongitude() != null)
+        .toList();
+
+    for (int i = 0; i < locData.size() - 1; i++) {
+      ImageMetaData current = locData.get(i);
+      ImageMetaData next = locData.get(i + 1);
+      totalDistance += calculateDistance(current.getLatitude(), current.getLongitude(),
+          next.getLatitude(), next.getLongitude());
+    }
+
+    return totalDistance;
+  }
+}
diff --git a/src/main/java/ssafy/retrip/utils/ImageMetaDataUtil.java b/src/main/java/ssafy/retrip/utils/ImageMetaDataUtil.java
new file mode 100644
index 0000000..4acc26d
--- /dev/null
+++ b/src/main/java/ssafy/retrip/utils/ImageMetaDataUtil.java
@@ -0,0 +1,54 @@
+package ssafy.retrip.utils;
+
+import static com.drew.metadata.exif.ExifSubIFDDirectory.*;
+import static lombok.AccessLevel.PRIVATE;
+
+import com.drew.imaging.ImageMetadataReader;
+import com.drew.lang.GeoLocation;
+import com.drew.metadata.Metadata;
+import com.drew.metadata.exif.ExifSubIFDDirectory;
+import com.drew.metadata.exif.GpsDirectory;
+import java.io.InputStream;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Date;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import ssafy.retrip.api.service.retrip.info.ImageMetaData;
+
+@Slf4j
+@NoArgsConstructor(access = PRIVATE)
+public class ImageMetaDataUtil {
+
+  public static ImageMetaData extractMetadata(InputStream inputStream) {
+    ImageMetaData metadata = new ImageMetaData();
+    try {
+      Metadata rawMetadata = ImageMetadataReader.readMetadata(inputStream);
+      extractDateTimeInfo(rawMetadata, metadata);
+      extractGpsInfo(rawMetadata, metadata);
+    } catch (Exception e) {
+      log.error("메타데이터 추출 오류", e);
+    }
+    return metadata;
+  }
+
+  private static void extractDateTimeInfo(Metadata rawMetadata, ImageMetaData metadata) {
+    ExifSubIFDDirectory exifDir = rawMetadata.getFirstDirectoryOfType(ExifSubIFDDirectory.class);
+    if (exifDir != null) {
+      Date date = exifDir.getDate(TAG_DATETIME_ORIGINAL);
+      if (date != null) {
+        metadata.updateTakenDate(LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()));
+      }
+    }
+  }
+
+  private static void extractGpsInfo(Metadata rawMetadata, ImageMetaData metadata) {
+    GpsDirectory gpsDir = rawMetadata.getFirstDirectoryOfType(GpsDirectory.class);
+    if (gpsDir != null) {
+      GeoLocation geoLocation = gpsDir.getGeoLocation();
+      if (geoLocation != null && !geoLocation.isZero()) {
+        metadata.updateGeoLocation(geoLocation.getLatitude(), geoLocation.getLongitude());
+      }
+    }
+  }
+}
\ No newline at end of file