diff --git a/i18n/en-US/manager.json b/i18n/en-US/manager.json
index 6a8f5fe..25a9064 100644
--- a/i18n/en-US/manager.json
+++ b/i18n/en-US/manager.json
@@ -22,6 +22,7 @@
   "serverToPlay": "Server to play (0 is China server, 1 is Japan server, 2 is America server)",
   "proxyUrl": "Proxy server address (leave it empty if you don't want to use it)",
   "userAgent": "Useragent",
+  "vanillaMode": "Vanilla mode (no extensions)",
   "userLibPath": "'User Library' Path",
   "localVersion": "Version",
   "isManagerHide": "Re-open the launcher when the game quit",
diff --git a/i18n/ja-JP/manager.json b/i18n/ja-JP/manager.json
index 2d267a9..f6a6543 100644
--- a/i18n/ja-JP/manager.json
+++ b/i18n/ja-JP/manager.json
@@ -18,6 +18,7 @@
   "serverToPlay": "ゲームサーバー（０は中国サーバー、１は日本サーバー、２は米国サーバー）",
   "proxyUrl": "プロキシサーバーアドレス（プロキシを使用しない場合は空白のままにします）",
   "userAgent": "ユーザーエージェント",
+  "vanillaMode": "バニラモード（エクステンションなし）",
   "userLibPath": "ユーザライブラリディレクトリ",
   "localVersion": "バージョン",
   "isManagerHide": "ゲーム終了後、管理画面に戻る",
diff --git a/i18n/ko/manager.json b/i18n/ko/manager.json
index 7151e11..7f3d6aa 100644
--- a/i18n/ko/manager.json
+++ b/i18n/ko/manager.json
@@ -22,6 +22,7 @@
   "serverToPlay": "\ud50c\ub808\uc774\ud560 \uc11c\ubc84 (0 : \uc911\uad6d \uc11c\ubc84, 1 : \uc77c\ubcf8 \uc11c\ubc84, 2 : \ubbf8\uad6d \uc11c\ubc84)",
   "proxyUrl": "\ud504\ub85d\uc2dc \uc11c\ubc84 \uc8fc\uc18c (\uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc73c\ub824\uba74 \ube48\uce78\uc73c\ub85c \ub458 \uac83)",
   "userAgent": "\uc0ac\uc6a9\uc790\u0020\uc5d0\uc774\uc804\ud2b8",
+  "vanillaMode": "Vanilla mode (no extensions)",
   "userLibPath": "'\uc0ac\uc6a9\uc790 \ub77c\uc774\ube0c\ub7ec\ub9ac' \uacbd\ub85c",
   "localVersion": "\ubc84\uc804",
   "isManagerHide": "\uac8c\uc784 \uc885\ub8cc \ud6c4 \ub7f0\ucc98 \uc7ac\uc2e4\ud589",
diff --git a/i18n/zh-CN/manager.json b/i18n/zh-CN/manager.json
index 66f0c15..4ad44ac 100644
--- a/i18n/zh-CN/manager.json
+++ b/i18n/zh-CN/manager.json
@@ -18,6 +18,7 @@
   "serverToPlay": "游戏服务器（0为国服，1为日服，2为美服）",
   "proxyUrl": "代理服务器地址（留空为不使用代理）",
   "userAgent": "用户代理",
+  "vanillaMode": "Vanilla mode (no extensions)",
   "userLibPath": "用户库目录",
   "localVersion": "版本",
   "isManagerHide": "退出游戏后回到管理器界面",
diff --git a/i18n/zh-TW/manager.json b/i18n/zh-TW/manager.json
index 89deb27..b9656dd 100644
--- a/i18n/zh-TW/manager.json
+++ b/i18n/zh-TW/manager.json
@@ -22,6 +22,7 @@
   "serverToPlay": "\u904a\u6232\u4f3a\u670d\u5668\uff080\u70ba\u570b\u4f3a\uff0c1\u70ba\u65e5\u4f3a\uff0c2\u70ba\u7f8e\u4f3a\uff09",
   "proxyUrl": "\u4ee3\u7406\u4f3a\u670d\u5668\u5730\u5740\uff08\u7559\u7a7a\u70ba\u4e0d\u4f7f\u7528\u4ee3\u7406\uff09",
   "userAgent": "\u7528\u6236\u4ee3\u7406",
+  "vanillaMode": "Vanilla mode (no extensions)",
   "userLibPath": "\u8cc7\u6599\u593e\u76ee\u9304",
   "localVersion": "\u7248\u672c",
   "isManagerHide": "\u9000\u51fa\u904a\u6232\u5f8c\uff0c\u8fd4\u56de\u6a94\u6848\u7e3d\u7ba1",
diff --git a/src/config.ts b/src/config.ts
index 112913f..11caf1f 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -30,7 +30,8 @@ const defaultChromiumConfig: MajsoulPlus.UserChromiumConfig = {
 
 const defaultUserDataConfig: MajsoulPlus.UserDataConfig = {
   useHttpServer: false,
-  serverToPlay: 0
+  serverToPlay: 0,
+  vanillaMode: false
 }
 
 const defaultConfig: MajsoulPlus.UserConfig = {
diff --git a/src/extension/manager.ts b/src/extension/manager.ts
index e644d7d..8ea68f0 100644
--- a/src/extension/manager.ts
+++ b/src/extension/manager.ts
@@ -126,7 +126,26 @@ export default class MajsoulPlusExtensionManager extends BaseManager {
       }
     }
 
+    const processRegion = (data) => UserConfigs.userData.serverToPlay === 0
+      ? Buffer.from(
+          data
+            .toString('utf-8')
+            .replace(/\.\.\/region\/region\.txt/g, 'region.txt')
+        )
+      : data;
+
     router.get('/:version/code.js', async (ctx, next) => {
+      if (UserConfigs.userData.vanillaMode) {
+        const code = (
+          await getRemoteOrCachedFile(ctx.request.originalUrl, false, data =>
+            processRegion(data)
+          )
+        ).data.toString('utf-8')
+        ctx.res.setHeader('Content-Type', 'application/javascript')
+        ctx.body = code;
+        return;
+      }
+
       if (this.codejs !== '') {
         ctx.res.statusCode = 200
         ctx.body = this.codejs
@@ -265,13 +284,7 @@ function addScript(url) {
       const url = ctx.request.originalUrl.replace(/^\/majsoul_plus/, '')
       const code = (
         await getRemoteOrCachedFile(url, false, data =>
-          UserConfigs.userData.serverToPlay === 0
-            ? Buffer.from(
-                data
-                  .toString('utf-8')
-                  .replace(/\.\.\/region\/region\.txt/g, 'region.txt')
-              )
-            : data
+          processRegion(data)
         )
       ).data.toString('utf-8')
       ctx.res.setHeader('Content-Type', 'application/javascript')
diff --git a/src/majsoul_plus.d.ts b/src/majsoul_plus.d.ts
index 19057d8..9752d68 100644
--- a/src/majsoul_plus.d.ts
+++ b/src/majsoul_plus.d.ts
@@ -29,6 +29,7 @@ declare namespace MajsoulPlus {
   export interface UserDataConfig {
     useHttpServer: boolean
     serverToPlay: number
+    vanillaMode: boolean
   }
 
   export interface UserConfig {