diff --git a/dictation_client/src/pages/UserListPage/index.tsx b/dictation_client/src/pages/UserListPage/index.tsx
index c63c691..46f1223 100644
--- a/dictation_client/src/pages/UserListPage/index.tsx
+++ b/dictation_client/src/pages/UserListPage/index.tsx
@@ -87,8 +87,9 @@ const UserListPage: React.FC = (): JSX.Element => {
 
   const users = useSelector(selectUserViews);
   const isLoading = useSelector(selectIsLoading);
-  // ユーザーが第5階層であるかどうかを判定する
-  const isTier5 = isApproveTier([TIERS.TIER5]);
+  // ユーザーが第5階層であるかどうかを判定する（代行操作中は第5階層として扱う）
+  const isTier5 =
+    isApproveTier([TIERS.TIER5]) || delegationAccessToken !== null;
 
   return (
     <>
diff --git a/dictation_server/src/features/accounts/accounts.controller.ts b/dictation_server/src/features/accounts/accounts.controller.ts
index ac29f0c..76c6e9c 100644
--- a/dictation_server/src/features/accounts/accounts.controller.ts
+++ b/dictation_server/src/features/accounts/accounts.controller.ts
@@ -199,7 +199,9 @@ export class AccountsController {
   })
   @ApiBearerAuth()
   @UseGuards(AuthGuard)
-  @UseGuards(RoleGuard.requireds({ roles: [ADMIN_ROLES.ADMIN] }))
+  @UseGuards(
+    RoleGuard.requireds({ roles: [ADMIN_ROLES.ADMIN], delegation: true }),
+  )
   @Get('me')
   async getMyAccount(@Req() req: Request): Promise<GetMyAccountResponse> {
     const accessToken = retrieveAuthorizationToken(req);