diff --git a/Assets/JAY/Scripts/PlayerController.cs b/Assets/JAY/Scripts/PlayerController.cs
index 0dd9e277..ca3fceb2 100644
--- a/Assets/JAY/Scripts/PlayerController.cs
+++ b/Assets/JAY/Scripts/PlayerController.cs
@@ -89,7 +89,8 @@ public class PlayerController : CharacterBase, IObserver<GameObject>
         }
         
         // 공격 입력 처리
-        if (Input.GetKeyDown(KeyCode.X) && (_currentAction == null || !_currentAction.IsActive)) {
+        if (Input.GetKeyDown(KeyCode.X) && (_currentAction == null || !_currentAction.IsActive)
+            && (CurrentState != PlayerState.Win && CurrentState != PlayerState.Dead)) {
             Debug.Log("X 버튼 Down 됨");
             StartAttackAction();
         }
diff --git a/Assets/KSH/DungeonLogic.cs b/Assets/KSH/DungeonLogic.cs
index a1db7b27..e5b66d8f 100644
--- a/Assets/KSH/DungeonLogic.cs
+++ b/Assets/KSH/DungeonLogic.cs
@@ -41,6 +41,8 @@ public class DungeonLogic : MonoBehaviour
     {
         if (isFailed || isCompleted) return; // 어느 한 쪽 사망시 더이상 피격 X
         
+        // TODO: 플레이어 피격 효과음
+        
         var result = _dungeonPanelController.SetPlayerHealth();
         if (!result) // 하트 모두 소모
         {
@@ -52,6 +54,8 @@ public class DungeonLogic : MonoBehaviour
     {
         if (isFailed || isCompleted) return;
         
+        // TODO: 에너미 피격 효과음
+        
         _dungeonPanelController.SetBossHealthBar(enemy.currentHP);
     }
 
diff --git a/Assets/Scripts/Character/CharacterBase.cs b/Assets/Scripts/Character/CharacterBase.cs
index fdf5a623..b0f4e2ea 100644
--- a/Assets/Scripts/Character/CharacterBase.cs
+++ b/Assets/Scripts/Character/CharacterBase.cs
@@ -28,6 +28,8 @@ public abstract class CharacterBase : MonoBehaviour
 
     public virtual void TakeDamage(float damage)
     {
+        if (currentHP <= 0) return;
+        
         float actualDamage = Mathf.Max(0, damage - defensePower);
         currentHP -= Mathf.RoundToInt(actualDamage);
         Debug.Log($"{characterName}이 {actualDamage}의 피해를 입었습니다. 현재 체력: {currentHP}");
@@ -35,6 +37,7 @@ public abstract class CharacterBase : MonoBehaviour
         if (currentHP <= 0)
         {
             Die();
+            return;
         }
         
         OnGetHit?.Invoke(this);