diff --git a/lib/src/app.dart b/lib/src/app.dart
index 348a35c..3a11d0b 100644
--- a/lib/src/app.dart
+++ b/lib/src/app.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 
+import 'package:askiineverdie/data/game_text_l10n.dart' as game_l10n;
 import 'package:askiineverdie/l10n/app_localizations.dart';
 import 'package:askiineverdie/src/core/engine/game_mutations.dart';
 import 'package:askiineverdie/src/core/engine/progress_service.dart';
@@ -59,6 +60,12 @@ class _AskiiNeverDieAppState extends State<AskiiNeverDieApp> {
         scaffoldBackgroundColor: const Color(0xFFF4F5F7),
         useMaterial3: true,
       ),
+      builder: (context, child) {
+        // 현재 로케일을 게임 텍스트 l10n 시스템에 동기화
+        final locale = Localizations.localeOf(context);
+        game_l10n.setGameLocale(locale.languageCode);
+        return child ?? const SizedBox.shrink();
+      },
       home: FrontScreen(
         onNewCharacter: _navigateToNewCharacter,
         onLoadSave: _loadSave,