diff --git a/nostalgia@asphyxia/README.md b/nostalgia@asphyxia/README.md
index 4034600..bc2ca45 100644
--- a/nostalgia@asphyxia/README.md
+++ b/nostalgia@asphyxia/README.md
@@ -4,7 +4,7 @@ Plugin Version: **v1.2.0**
 
 Supported Versions
 -------------------
-- ノスタルジア　/ First Version (Experiment-Old)
+- ノスタルジア/ First Version (Experiment-Old)
 - Forte (Experiment-Old)
 - Op.2
 
@@ -13,6 +13,8 @@ About Experiment-Old Support
 A version that marked as **Experiment-Old** is _Not_ Primary supported experiment version.
 Since This plugin is mainly focused on Op.2, other versions may not work correctly.
 
+If you have a problem that move from old version to new version, There's webui for mitigate the issue.
+
 Changelog
 =========
 1.2.0 (Current)
diff --git a/nostalgia@asphyxia/handler/webui.ts b/nostalgia@asphyxia/handler/webui.ts
new file mode 100644
index 0000000..9edfbd1
--- /dev/null
+++ b/nostalgia@asphyxia/handler/webui.ts
@@ -0,0 +1,20 @@
+import { Profile } from "../models/profile";
+
+export const fixIndexBug = async (data: {
+    refid: string;
+    confirm: string;
+  }) => {
+    if (data.confirm == "on") {
+      console.warn(`refid "${data.refid}" performs index reset!`)
+      await DB.Update<Profile>(
+        data.refid,
+        { collection: 'profile' },
+        { $set: {
+            music: 0,
+            sheet: 0,
+            brooch: 0
+          }
+        }
+      );
+    }
+  };
\ No newline at end of file
diff --git a/nostalgia@asphyxia/index.ts b/nostalgia@asphyxia/index.ts
index 8399164..67cb5a3 100644
--- a/nostalgia@asphyxia/index.ts
+++ b/nostalgia@asphyxia/index.ts
@@ -1,9 +1,12 @@
 import { get_common_info, get_music_info } from "./handler/common";
 import { get_musicdata, get_playdata, regist_playdata, set_total_result } from "./handler/player"
+import { fixIndexBug } from "./handler/webui";
 
 export function register() {
     R.GameCode('PAN');
 
+    R.WebUIEvent("nosFixIndexBug", fixIndexBug)
+
     const MultiRoute = (method: string, handler: EPR | boolean) => {
         // Helper for register multiple versions.
         R.Route(method, handler); // First version and Forte.
diff --git a/nostalgia@asphyxia/webui/profile_fix_login.pug b/nostalgia@asphyxia/webui/profile_fix_login.pug
new file mode 100644
index 0000000..76e1271
--- /dev/null
+++ b/nostalgia@asphyxia/webui/profile_fix_login.pug
@@ -0,0 +1,26 @@
+div
+  .card
+    .card-header
+      p.card-header-title
+        span.icon
+          i.mdi.mdi-account-edit
+        | Fix Error with Login
+    .card-content
+      p If you unable to login after travels of between versions, This may helpful.
+      p Normally, login issue caused you played deleted song last time in previous version that not deleted time.
+      p This page is about reset of last indexes that causing login problem.
+      form(method="post" action="/emit/nosFixIndexBug")
+        .field
+          label.label ID
+          .control
+            input.input(type="text" name="refid", value=refid readonly)
+        .field
+          label.label Are you sure to reset indexes?
+          .control
+            input(type="checkbox" name="confirm")
+            |   This is not recoverable. Do this if you have a problem.
+        .field
+          button.button.is-primary(type="submit") 
+            span.icon
+              i.mdi.mdi-check
+            span Submit