diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 7beb525..cbb08ef 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -22,6 +22,14 @@
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+
+            <!-- Deep Link Filter -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="app" android:host="wisp" />
+            </intent-filter>
         </activity>
     </application>
 
diff --git a/app/src/main/java/com/angrypodo/wisp/navigation/Routes.kt b/app/src/main/java/com/angrypodo/wisp/navigation/Routes.kt
index fd49259..85e2284 100644
--- a/app/src/main/java/com/angrypodo/wisp/navigation/Routes.kt
+++ b/app/src/main/java/com/angrypodo/wisp/navigation/Routes.kt
@@ -8,13 +8,20 @@ import kotlinx.serialization.Serializable
 data object Home
 
 @Serializable
-@Wisp("product/{productId}")
-data class ProductDetail(val productId: String)
+@Wisp("product")
+data class ProductDetail(
+    val productId: Int,
+    val showReviews: Boolean = false
+)
 
 @Serializable
 @Wisp("settings")
 data object Settings
 
+@Serializable
+@Wisp("user")
+data class UserRoute(val userId: Int)
+
 @Serializable
 @Wisp("splash")
 data object Splash
diff --git a/app/src/main/java/com/angrypodo/wisp/ui/main/MainActivity.kt b/app/src/main/java/com/angrypodo/wisp/ui/main/MainActivity.kt
index 1d0e134..0d72656 100644
--- a/app/src/main/java/com/angrypodo/wisp/ui/main/MainActivity.kt
+++ b/app/src/main/java/com/angrypodo/wisp/ui/main/MainActivity.kt
@@ -18,11 +18,13 @@ import com.angrypodo.wisp.navigation.Home
 import com.angrypodo.wisp.navigation.ProductDetail
 import com.angrypodo.wisp.navigation.Settings
 import com.angrypodo.wisp.navigation.Splash
+import com.angrypodo.wisp.navigation.UserRoute
 import com.angrypodo.wisp.runtime.navigateTo
 import com.angrypodo.wisp.ui.screens.HomeScreen
 import com.angrypodo.wisp.ui.screens.ProductDetailScreen
 import com.angrypodo.wisp.ui.screens.SettingsScreen
 import com.angrypodo.wisp.ui.screens.SplashScreen
+import com.angrypodo.wisp.ui.screens.UserScreen
 import com.angrypodo.wisp.ui.theme.WispTheme
 
 class MainActivity : ComponentActivity() {
@@ -57,18 +59,29 @@ private fun WispNavHost(deepLinkUri: Uri?) {
         composable<Home> {
             HomeScreen(
                 onNavigateToProduct = {
-                    val uri = "app://wisp?stack=product/123|settings".toUri()
+                    val uri = "app://wisp/product/settings?productId=123&showReviews=true".toUri()
                     navController.navigateTo(uri)
                 },
                 onNavigateToSettings = {
-                    val uri = "app://wisp?stack=settings".toUri()
+                    val uri = "app://wisp/settings".toUri()
+                    navController.navigateTo(uri)
+                },
+                onNavigateToMultiStack = {
+                    val uri = "app://wisp/product/user?productId=123&userId=99".toUri()
                     navController.navigateTo(uri)
                 }
             )
         }
         composable<ProductDetail> { backStackEntry ->
             val productDetail: ProductDetail = backStackEntry.toRoute()
-            ProductDetailScreen(productId = productDetail.productId)
+            ProductDetailScreen(
+                productId = productDetail.productId,
+                showReviews = productDetail.showReviews
+            )
+        }
+        composable<UserRoute> { backStackEntry ->
+            val userRoute: UserRoute = backStackEntry.toRoute()
+            UserScreen(userId = userRoute.userId)
         }
         composable<Settings> {
             SettingsScreen()
diff --git a/app/src/main/java/com/angrypodo/wisp/ui/screens/SampleScreens.kt b/app/src/main/java/com/angrypodo/wisp/ui/screens/SampleScreens.kt
index 8edfc91..09611a2 100644
--- a/app/src/main/java/com/angrypodo/wisp/ui/screens/SampleScreens.kt
+++ b/app/src/main/java/com/angrypodo/wisp/ui/screens/SampleScreens.kt
@@ -20,7 +20,11 @@ import com.angrypodo.wisp.runtime.Wisp
 import kotlinx.coroutines.delay
 
 @Composable
-fun HomeScreen(onNavigateToProduct: () -> Unit, onNavigateToSettings: () -> Unit) {
+fun HomeScreen(
+    onNavigateToProduct: () -> Unit,
+    onNavigateToSettings: () -> Unit,
+    onNavigateToMultiStack: () -> Unit
+) {
     Column(
         modifier = Modifier.fillMaxSize(),
         verticalArrangement = Arrangement.Center,
@@ -29,17 +33,21 @@ fun HomeScreen(onNavigateToProduct: () -> Unit, onNavigateToSettings: () -> Unit
         Text(text = "Home Screen", fontSize = 24.sp)
         Spacer(modifier = Modifier.height(24.dp))
         Button(onClick = onNavigateToProduct) {
-            Text(text = "Go to Product 123 -> Settings (Deep Link)")
+            Text(text = "Go to Product 123 -> Settings")
         }
         Spacer(modifier = Modifier.height(16.dp))
         Button(onClick = onNavigateToSettings) {
-            Text(text = "Go to Settings (Single Deep Link)")
+            Text(text = "Go to Settings")
+        }
+        Spacer(modifier = Modifier.height(16.dp))
+        Button(onClick = onNavigateToMultiStack) {
+            Text(text = "Product(123) -> User(99)")
         }
     }
 }
 
 @Composable
-fun ProductDetailScreen(productId: String) {
+fun ProductDetailScreen(productId: Int, showReviews: Boolean) {
     Column(
         modifier = Modifier.fillMaxSize(),
         verticalArrangement = Arrangement.Center,
@@ -48,6 +56,7 @@ fun ProductDetailScreen(productId: String) {
         Text(text = "Product Detail Screen", fontSize = 24.sp)
         Spacer(modifier = Modifier.height(16.dp))
         Text(text = "Product ID: $productId", fontSize = 20.sp)
+        Text(text = "Show Reviews: $showReviews", fontSize = 16.sp)
     }
 }
 
@@ -62,6 +71,19 @@ fun SettingsScreen() {
     }
 }
 
+@Composable
+fun UserScreen(userId: Int) {
+    Column(
+        modifier = Modifier.fillMaxSize(),
+        verticalArrangement = Arrangement.Center,
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Text(text = "User Screen", fontSize = 24.sp)
+        Spacer(modifier = Modifier.height(16.dp))
+        Text(text = "User ID: $userId", fontSize = 20.sp)
+    }
+}
+
 @Composable
 fun SplashScreen(
     navController: NavController,
@@ -83,10 +105,8 @@ fun SplashScreen(
             }
         } else {
             // Deep link found.
-            // The first route is "splash", which we are already on.
-            // We navigate to the rest of the stack.
-            val routesToNavigate = routes.drop(1)
-            wisp.navigateTo(navController, routesToNavigate)
+            // Navigate to the parsed stack.
+            wisp.navigateTo(navController, routes)
         }
     }
 
diff --git a/wisp-processor/src/main/java/com/angrypodo/wisp/generator/WispRegistryGenerator.kt b/wisp-processor/src/main/java/com/angrypodo/wisp/generator/WispRegistryGenerator.kt
index e5e8bc9..4e9a6a7 100644
--- a/wisp-processor/src/main/java/com/angrypodo/wisp/generator/WispRegistryGenerator.kt
+++ b/wisp-processor/src/main/java/com/angrypodo/wisp/generator/WispRegistryGenerator.kt
@@ -25,7 +25,7 @@ internal class WispRegistryGenerator {
 
         val factoriesProperty = buildFactoriesProperty(routes)
 
-        val registryObject = TypeSpec.objectBuilder(registryClassName)
+        val registryObject = TypeSpec.classBuilder(registryClassName)
             .addSuperinterface(WispClassName.WISP_MODULE_REGISTRY) // Changed interface
             .addModifiers(KModifier.PUBLIC)
             .addProperty(factoriesProperty)
diff --git a/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/Wisp.kt b/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/Wisp.kt
index ca147c8..3369b68 100644
--- a/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/Wisp.kt
+++ b/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/Wisp.kt
@@ -24,16 +24,30 @@ class Wisp(
      */
     fun resolveRoutes(uri: Uri): List<Any> {
         val paths = parser.parse(uri)
+        val queryParams = getQueryParams(uri)
+
         return paths.map { path ->
-            matchAndCreate(path) ?: throw WispError.UnknownPath(path)
+            matchAndCreate(path, queryParams) ?: throw WispError.UnknownPath(path)
+        }
+    }
+
+    private fun getQueryParams(uri: Uri): Map<String, String> {
+        val params = mutableMapOf<String, String>()
+        uri.queryParameterNames.forEach { key ->
+            uri.getQueryParameter(key)?.let { value ->
+                params[key] = value
+            }
         }
+        return params
     }
 
-    private fun matchAndCreate(path: String): Any? {
+    private fun matchAndCreate(path: String, queryParams: Map<String, String>): Any? {
         for ((pattern, factory) in mergedRoutes) {
-            val params = WispUriMatcher.match(path, pattern)
-            if (params != null) {
-                return factory.create(params)
+            val pathVariables = WispUriMatcher.match(path, pattern)
+            if (pathVariables != null) {
+                // Path Variable과 Query Parameter 병합 (Query Param 우선순위 낮음)
+                val combinedParams = queryParams + pathVariables
+                return factory.create(combinedParams)
             }
         }
         return null
@@ -71,7 +85,9 @@ class Wisp(
 
         @JvmStatic
         @Synchronized
-        fun initialize() {
+        fun initialize(
+            parser: WispUriParser = DefaultWispUriParser()
+        ) {
             if (instance == null) {
                 val aggregatedRoutes = mutableMapOf<String, RouteFactory>()
                 val loader = ServiceLoader.load(WispModuleRegistry::class.java)
@@ -80,7 +96,7 @@ class Wisp(
                     aggregatedRoutes.putAll(registry.getRoutes())
                 }
 
-                instance = Wisp(aggregatedRoutes)
+                instance = Wisp(aggregatedRoutes, parser)
             }
         }
 
diff --git a/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/parser/DefaultWispUriParser.kt b/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/parser/DefaultWispUriParser.kt
index 0bf677b..0f25dae 100644
--- a/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/parser/DefaultWispUriParser.kt
+++ b/wisp-runtime/src/main/java/com/angrypodo/wisp/runtime/parser/DefaultWispUriParser.kt
@@ -1,26 +1,28 @@
 package com.angrypodo.wisp.runtime.parser
 
 import android.net.Uri
-import com.angrypodo.wisp.runtime.WispError
-import java.net.URLDecoder
-import java.nio.charset.StandardCharsets
 
-private const val STACK = "stack"
+/**
+ * 기본 URI 파서 구현체입니다.
+ * URI의 경로(Path)를 지정된 구분자([delimiter])로 분리하여 라우트 경로 리스트를 생성합니다.
+ *
+ * 예: "myapp://home/product" (delimiter="/") -> ["home", "product"]
+ */
+class DefaultWispUriParser(
+    private val delimiter: String = "/"
+) : WispUriParser {
 
-class DefaultWispUriParser : WispUriParser {
     override fun parse(uri: Uri): List<String> {
-        val encodedStack = uri.getQueryParameter(STACK)
+        val path = uri.path ?: return emptyList()
 
-        if (encodedStack.isNullOrBlank()) {
-            throw WispError.ParsingFailed(uri.toString(), "Missing 'stack' query parameter")
+        // 경로가 구분자로 시작하면 제거 (예: "/home" -> "home")
+        val trimmedPath = if (path.startsWith(delimiter)) {
+            path.substring(delimiter.length)
+        } else {
+            path
         }
 
-        return try {
-            val decodedStack = URLDecoder.decode(encodedStack, StandardCharsets.UTF_8.name())
-
-            decodedStack.split("|").filter { it.isNotBlank() }
-        } catch (e: Exception) {
-            throw WispError.ParsingFailed(uri.toString(), e.message ?: "Unknown decoding error")
-        }
+        return trimmedPath.split(delimiter)
+            .filter { it.isNotEmpty() }
     }
 }