diff --git a/assets/data/enemy/enemy_01.png b/assets/data/enemy/enemy_01.png
new file mode 100644
index 0000000..092473f
Binary files /dev/null and b/assets/data/enemy/enemy_01.png differ
diff --git a/lib/widgets/battle/battle_header.dart b/lib/widgets/battle/battle_header.dart
index 9bd39bd..68664bd 100644
--- a/lib/widgets/battle/battle_header.dart
+++ b/lib/widgets/battle/battle_header.dart
@@ -29,7 +29,7 @@ class BattleHeader extends StatelessWidget {
         break;
     }
 
-    return "Tier $tier $tierName - $round";
+    return "$tierName - $round";
   }
 
   @override
diff --git a/lib/widgets/battle/character_status_card.dart b/lib/widgets/battle/character_status_card.dart
index 7349b20..c6072cf 100644
--- a/lib/widgets/battle/character_status_card.dart
+++ b/lib/widgets/battle/character_status_card.dart
@@ -109,12 +109,10 @@ class CharacterStatusCard extends StatelessWidget {
         BattleAnimationWidget(
           key: animationKey,
           child: Container(
-            width: 100, // 임시 크기
-            height: 100, // 임시 크기
+            width: isPlayer ? 100 : 200, // 플레이어 100, 적 200
+            height: isPlayer ? 100 : 200, // 플레이어 100, 적 200
             decoration: BoxDecoration(
-              color: isPlayer
-                  ? Colors.lightBlue
-                  : Colors.deepOrange, // 플레이어/적 구분 색상
+              color: isPlayer ? Colors.lightBlue : null,
               borderRadius: BorderRadius.circular(8),
             ),
             child: Center(
@@ -124,11 +122,12 @@ class CharacterStatusCard extends StatelessWidget {
                       size: 60,
                       color: ThemeConfig.textColorWhite,
                     ) // 플레이어 아이콘
-                  : const Icon(
-                      Icons.psychology,
-                      size: 60,
-                      color: ThemeConfig.textColorWhite,
-                    ), // 적 아이콘 (몬스터 대신)
+                  : Image.asset(
+                      'assets/data/enemy/enemy_01.png',
+                      width: 200,
+                      height: 200,
+                      fit: BoxFit.contain,
+                    ), // 적 이미지
             ),
           ),
         ),
diff --git a/prompt/00_project_context_restore.md b/prompt/00_project_context_restore.md
index 7048256..e13d843 100644
--- a/prompt/00_project_context_restore.md
+++ b/prompt/00_project_context_restore.md
@@ -68,6 +68,21 @@
 - **자동 저장:** 스테이지 클리어 시 `SaveManager`를 통해 자동 저장.
 - **Permadeath:** 패배 시 저장 데이터 삭제 (로그라이크 요소).
 
+### G. 스테이지 시스템 (Stage System)
+
+- **Map Generation:** 진행에 따라 랜덤하게 다음 스테이지 타입이 결정됨 (현재는 단순 랜덤).
+- **Underground Colosseum System (Rounds/Tiers):**
+  - **Round Progression:** 스테이지 진행(`stage` count)에 따라 난이도(Tier)가 상승.
+  - **Tier:**
+    - Tier 1: Stage 1 ~ 12 (지하 불법 투기장)
+    - Tier 2: Stage 13 ~ 24 (콜로세움)
+    - Tier 3: Stage 25+ (왕의 투기장)
+- **Stage Types:**
+  - **Battle:** 일반 몬스터 전투.
+  - **Elite:** 강화된 몬스터 전투 (보상 증가, 12 스테이지마다 등장).
+  - **Shop:** 아이템 구매/판매/리롤 (5 스테이지마다 등장).
+  - **Rest:** 휴식 (8 스테이지마다 등장).
+
 ### F. 코드 구조 (Code Structure - Barrel Pattern)
 
 - **Barrel File Pattern:** `lib/` 내의 모든 주요 디렉토리는 해당 폴더의 파일들을 묶어주는 단일 진입점 파일(`.dart`)을 가집니다.
diff --git a/pubspec.yaml b/pubspec.yaml
index 6e32ee5..3c4db17 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -2,7 +2,7 @@ name: game_test
 description: "A new Flutter project."
 # The following line prevents the package from being accidentally published to
 # pub.dev using `flutter pub publish`. This is preferred for private packages.
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+publish_to: "none" # Remove this line if you wish to publish to pub.dev
 
 # The following defines the version and build number for your application.
 # A version number is three numbers separated by dots, like 1.2.43
@@ -53,7 +53,6 @@ dev_dependencies:
 
 # The following section is specific to Flutter packages.
 flutter:
-
   # The following line ensures that the Material Icons font is
   # included with your application, so that you can use the icons in
   # the material Icons class.
@@ -63,6 +62,7 @@ flutter:
   assets:
     - assets/data/
     - assets/data/icon/
+    - assets/data/enemy/
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/to/resolution-aware-images