diff --git a/src/lib/server/db/file.ts b/src/lib/server/db/file.ts
index b99bd38..a42235b 100644
--- a/src/lib/server/db/file.ts
+++ b/src/lib/server/db/file.ts
@@ -129,14 +129,15 @@ export const unregisterDirectory = async (userId: number, directoryId: number) =
   return await db.transaction(
     async (tx) => {
       const unregisterFiles = async (parentId: number) => {
-        const files = await tx
+        return await tx
           .delete(file)
           .where(and(eq(file.userId, userId), eq(file.parentId, parentId)))
-          .returning({ path: file.path });
-        return files.map(({ path }) => path);
+          .returning({ id: file.id, path: file.path });
       };
-      const unregisterDirectoryRecursively = async (directoryId: number): Promise<string[]> => {
-        const filePaths = await unregisterFiles(directoryId);
+      const unregisterDirectoryRecursively = async (
+        directoryId: number,
+      ): Promise<{ id: number; path: string }[]> => {
+        const files = await unregisterFiles(directoryId);
         const subDirectories = await tx
           .select({ id: directory.id })
           .from(directory)
@@ -149,7 +150,7 @@ export const unregisterDirectory = async (userId: number, directoryId: number) =
         if (deleteRes.changes === 0) {
           throw new IntegrityError("Directory not found");
         }
-        return filePaths.concat(...subDirectoryFilePaths);
+        return files.concat(...subDirectoryFilePaths);
       };
       return await unregisterDirectoryRecursively(directoryId);
     },
diff --git a/src/lib/server/schemas/directory.ts b/src/lib/server/schemas/directory.ts
index 5f526aa..17d5720 100644
--- a/src/lib/server/schemas/directory.ts
+++ b/src/lib/server/schemas/directory.ts
@@ -15,6 +15,11 @@ export const directoryInfoResponse = z.object({
 });
 export type DirectoryInfoResponse = z.infer<typeof directoryInfoResponse>;
 
+export const directoryDeleteResponse = z.object({
+  deletedFiles: z.number().int().positive().array(),
+});
+export type DirectoryDeleteResponse = z.infer<typeof directoryDeleteResponse>;
+
 export const directoryRenameRequest = z.object({
   dekVersion: z.string().datetime(),
   name: z.string().base64().nonempty(),
diff --git a/src/lib/server/services/directory.ts b/src/lib/server/services/directory.ts
index aba0343..3f6b55d 100644
--- a/src/lib/server/services/directory.ts
+++ b/src/lib/server/services/directory.ts
@@ -34,8 +34,13 @@ export const getDirectoryInformation = async (userId: number, directoryId: "root
 
 export const deleteDirectory = async (userId: number, directoryId: number) => {
   try {
-    const filePaths = await unregisterDirectory(userId, directoryId);
-    filePaths.map((path) => unlink(path)); // Intended
+    const files = await unregisterDirectory(userId, directoryId);
+    return {
+      files: files.map(({ id, path }) => {
+        unlink(path); // Intended
+        return id;
+      }),
+    };
   } catch (e) {
     if (e instanceof IntegrityError && e.message === "Directory not found") {
       error(404, "Invalid directory id");
diff --git a/src/routes/(fullscreen)/setting/cache/+page.svelte b/src/routes/(fullscreen)/setting/cache/+page.svelte
index a32b5c6..6f3770e 100644
--- a/src/routes/(fullscreen)/setting/cache/+page.svelte
+++ b/src/routes/(fullscreen)/setting/cache/+page.svelte
@@ -29,7 +29,12 @@
         fileInfo: getFileInfo(index.fileId, $masterKeyStore?.get(1)?.key!),
       }))
       .sort((a, b) => a.index.lastRetrievedAt.getTime() - b.index.lastRetrievedAt.getTime());
-    fileCacheTotalSize = fileCache.reduce((acc, { index }) => acc + index.size, 0);
+  });
+
+  $effect(() => {
+    if (fileCache) {
+      fileCacheTotalSize = fileCache.reduce((acc, { index }) => acc + index.size, 0);
+    }
   });
 </script>
 
@@ -39,7 +44,7 @@
 
 <div class="flex h-full flex-col">
   <TopBar title="캐시" />
-  {#if fileCache}
+  {#if fileCache && fileCache.length > 0}
     <div class="space-y-4 pb-4">
       <div class="space-y-1 break-keep text-gray-800">
         <p>
@@ -56,7 +61,13 @@
     </div>
   {:else}
     <div class="flex flex-grow items-center justify-center">
-      <p class="text-gray-500">캐시 목록을 불러오고 있어요.</p>
+      <p class="text-gray-500">
+        {#if fileCache}
+          캐시된 파일이 없어요.
+        {:else}
+          캐시 목록을 불러오고 있어요.
+        {/if}
+      </p>
     </div>
   {/if}
 </div>
diff --git a/src/routes/(main)/directory/[[id]]/service.ts b/src/routes/(main)/directory/[[id]]/service.ts
index bf1f867..00d28ab 100644
--- a/src/routes/(main)/directory/[[id]]/service.ts
+++ b/src/routes/(main)/directory/[[id]]/service.ts
@@ -19,6 +19,7 @@ import type {
   HmacSecretListResponse,
   DuplicateFileScanRequest,
   DuplicateFileScanResponse,
+  DirectoryDeleteResponse,
 } from "$lib/server/schemas";
 import { hmacSecretStore, type MasterKey, type HmacSecret } from "$lib/stores";
 
@@ -191,6 +192,15 @@ export const requestDirectoryEntryRename = async (
 };
 
 export const requestDirectoryEntryDeletion = async (entry: SelectedDirectoryEntry) => {
-  await callPostApi(`/api/${entry.type}/${entry.id}/delete`);
-  await deleteFileCache(entry.id);
+  const res = await callPostApi(`/api/${entry.type}/${entry.id}/delete`);
+  if (!res.ok) return false;
+
+  if (entry.type === "directory") {
+    const { deletedFiles }: DirectoryDeleteResponse = await res.json();
+    await Promise.all(deletedFiles.map(deleteFileCache));
+    return true;
+  } else {
+    await deleteFileCache(entry.id);
+    return true;
+  }
 };
diff --git a/src/routes/api/directory/[id]/delete/+server.ts b/src/routes/api/directory/[id]/delete/+server.ts
index 4873912..4d29fd8 100644
--- a/src/routes/api/directory/[id]/delete/+server.ts
+++ b/src/routes/api/directory/[id]/delete/+server.ts
@@ -1,6 +1,7 @@
-import { error, text } from "@sveltejs/kit";
+import { error, json } from "@sveltejs/kit";
 import { z } from "zod";
 import { authorize } from "$lib/server/modules/auth";
+import { directoryDeleteResponse, type DirectoryDeleteResponse } from "$lib/server/schemas";
 import { deleteDirectory } from "$lib/server/services/directory";
 import type { RequestHandler } from "./$types";
 
@@ -15,6 +16,8 @@ export const POST: RequestHandler = async ({ locals, params }) => {
   if (!zodRes.success) error(400, "Invalid path parameters");
   const { id } = zodRes.data;
 
-  await deleteDirectory(userId, id);
-  return text("Directory deleted", { headers: { "Content-Type": "text/plain" } });
+  const { files } = await deleteDirectory(userId, id);
+  return json(
+    directoryDeleteResponse.parse({ deletedFiles: files } satisfies DirectoryDeleteResponse),
+  );
 };