diff --git a/app/src/main/kotlin/io/sakurasou/controller/CommonController.kt b/app/src/main/kotlin/io/sakurasou/controller/CommonController.kt
index 259cddb1..b28077a4 100644
--- a/app/src/main/kotlin/io/sakurasou/controller/CommonController.kt
+++ b/app/src/main/kotlin/io/sakurasou/controller/CommonController.kt
@@ -7,10 +7,13 @@ import io.github.smiley4.ktorswaggerui.dsl.routing.route
 import io.ktor.http.*
 import io.ktor.server.application.*
 import io.ktor.server.request.*
+import io.ktor.server.response.*
 import io.ktor.server.routing.*
 import io.sakurasou.config.InstanceCenter.commonService
 import io.sakurasou.controller.request.SiteInitRequest
+import io.sakurasou.exception.controller.param.WrongParameterException
 import io.sakurasou.extension.success
+import io.sakurasou.model.dto.ImageFileDTO
 import io.sakurasou.service.common.CommonService
 
 /**
@@ -19,14 +22,7 @@ import io.sakurasou.service.common.CommonService
  */
 fun Route.commonRoute(commonService: CommonService) {
     val commonController = CommonController(commonService)
-    cacheOutput {
-        route("fetch") {
-            randomFetchImage(commonController)
-        }
-        route("s") {
-            anonymousGetImage(commonController)
-        }
-    }
+    cacheOutput { route("s") { anonymousGetImage(commonController) } }
 }
 
 fun Route.siteInitRoute() {
@@ -65,23 +61,27 @@ private fun Route.randomFetchImage(commonController: CommonController) {
 }
 
 private fun Route.anonymousGetImage(commonController: CommonController) {
-    get("{imageId}", {
+    get("{imageUniqueId}", {
         request {
-            pathParameter<String>("imageId") {
+            pathParameter<String>("imageUniqueId") {
                 required = true
             }
         }
         response {
             HttpStatusCode.OK to {
-                description = "strategy local: direct, S3: redirect"
+                description = "LOCAL: byte array"
             }
-            HttpStatusCode.NotFound to {
-                description = "image not found"
+            HttpStatusCode.Found to {
+                description = "S3: redirect"
             }
         }
     }) {
-        commonController.handleGetImage()
+        val imageUniqueName = call.parameters["imageUniqueId"]
+        if (imageUniqueName == null || imageUniqueName.length != 32) throw WrongParameterException()
 
+        val fileDTO = commonController.handleFetchImage(imageUniqueName)
+        if (fileDTO.bytes != null) call.respondBytes(fileDTO.bytes, ContentType.Image.Any)
+        else call.respondRedirect(fileDTO.url!!)
     }
 }
 
@@ -96,7 +96,8 @@ class CommonController(
 
     }
 
-    suspend fun handleGetImage() {
-
+    suspend fun handleFetchImage(imageUniqueName: String): ImageFileDTO {
+        val imageFileDTO = commonService.fetchImage(imageUniqueName)
+        return imageFileDTO
     }
 }
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