diff --git a/Assets/1_Script/Common/EventAggregator.cs b/Assets/1_Script/Common/EventAggregator.cs
new file mode 100644
index 0000000..f942c6c
--- /dev/null
+++ b/Assets/1_Script/Common/EventAggregator.cs
@@ -0,0 +1,91 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using Unity.Profiling;
+using UnityEngine;
+
+public static class EventAggregator
+{
+    // 타입별 SubscriberList<T> 저장
+    static readonly Dictionary<Type, object> subscribers = new Dictionary<Type, object>();
+
+    // Publish 성능 측정을 위한 profiler marker
+    static readonly ProfilerMarker publishMarker = new ProfilerMarker("EventAggregator.Publish");
+
+
+    /// <summary>
+    /// 이벤트 타입 T를 구독합니다.
+    /// </summary>
+    public static void Subscribe<T>(Action<T> handler)
+    {
+        var key = typeof(T);
+        if (!subscribers.TryGetValue(key, out var listObj))
+        {
+            listObj = new SubscriberList<T>(initialCapacity: 4);
+            subscribers[key] = listObj;
+        }
+        ((SubscriberList<T>)listObj).Add(handler);
+
+        Logger.LogDebug($"[EA] Subscribe<{key.Name}> → {handler.Target?.GetType().Name}.{handler.Method.Name}");
+    }
+
+    /// <summary>
+    /// 이벤트 타입 T의 구독을 해제합니다.
+    /// </summary>
+    public static void Unsubscribe<T>(Action<T> handler)
+    {
+        var key = typeof(T);
+        if (subscribers.TryGetValue(key, out var listObj))
+            ((SubscriberList<T>)listObj).Remove(handler);
+
+        Logger.LogDebug($"[EA] Unsubscribe<{key.Name}> ← {handler.Target?.GetType().Name}.{handler.Method.Name}");
+    }
+
+    /// <summary>
+    /// 이벤트를 발행합니다.
+    /// </summary>
+    public static void Publish<T>(in T payload)
+    {
+        var key = typeof(T);
+        Logger.LogDebug($"[EA] Publish<{key.Name}> payload={payload}");
+
+        publishMarker.Begin();
+        if (subscribers.TryGetValue(key, out var listObj))
+            ((SubscriberList<T>)listObj).Invoke(payload);
+        publishMarker.End();
+    }
+
+    class SubscriberList<T>
+    {
+        readonly List<Action<T>> handlers;
+
+        public SubscriberList(int initialCapacity)
+        {
+            handlers = new List<Action<T>>(initialCapacity);
+        }
+
+        public void Add(Action<T> handler) => handlers.Add(handler);
+        public void Remove(Action<T> handler) => handlers.Remove(handler);
+
+        public void Invoke(in T payload)
+        {
+            for (int i = 0, cnt = handlers.Count; i < cnt; i++)
+            {
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+                try
+                {
+                    handlers[i].Invoke(payload);
+                }
+                catch (Exception ex)
+                {
+                    // 오류는 항상 남기되, 로깅 메커니즘을 통일
+                    Logger.LogError($"[EA] Exception in <{typeof(T).Name}> handler: {ex}");
+                }
+#else
+                    _handlers[i].Invoke(payload);
+#endif
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/1_Script/Common/EventAggregator.cs.meta b/Assets/1_Script/Common/EventAggregator.cs.meta
new file mode 100644
index 0000000..e7acbb8
--- /dev/null
+++ b/Assets/1_Script/Common/EventAggregator.cs.meta
@@ -0,0 +1,11 @@
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diff --git a/Assets/1_Script/Common/Logger.cs b/Assets/1_Script/Common/Logger.cs
new file mode 100644
index 0000000..50eb71c
--- /dev/null
+++ b/Assets/1_Script/Common/Logger.cs
@@ -0,0 +1,53 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Text;
+using UnityEngine;
+
+/// <summary>
+/// Debug.Log을 좀 더 편하게 사용하기 위한 헬퍼 클래스입니다.
+/// </summary>
+public static class Logger
+{
+    public enum Level { Debug, Info, Warning, Error }
+
+    // 릴리즈 빌드에서 불필요한 스택트레이스 끄기
+    static Logger()
+    {
+#if !UNITY_EDITOR && !DEVELOPMENT_BUILD
+            Application.SetStackTraceLogType(LogType.Log,    StackTraceLogType.None);
+            Application.SetStackTraceLogType(LogType.Warning,StackTraceLogType.None);
+            Application.SetStackTraceLogType(LogType.Error,  StackTraceLogType.ScriptOnly);
+#endif
+    }
+
+    // 에디터/개발 빌드에서만 컴파일됨 → 릴리즈에선 이 호출 자체가 사라집니다
+    [Conditional("UNITY_EDITOR"), Conditional("DEVELOPMENT_BUILD")]
+    public static void LogDebug(object message, UnityEngine.Object context = null) => LogInternal(Level.Debug, message, context);
+
+    [Conditional("UNITY_EDITOR"), Conditional("DEVELOPMENT_BUILD")]
+    public static void LogInfo(object message, UnityEngine.Object context = null) => LogInternal(Level.Info, message, context);
+
+    [Conditional("UNITY_EDITOR"), Conditional("DEVELOPMENT_BUILD")]
+    public static void LogWarning(object message, UnityEngine.Object context = null) => LogInternal(Level.Warning, message, context);
+
+    // 에러는 항상 남겨둡니다
+    public static void LogError(object message, UnityEngine.Object context = null) => LogInternal(Level.Error, message, context);
+
+    static void LogInternal(Level level, object message, UnityEngine.Object context = null)
+    {
+        switch (level)
+        {
+            case Level.Debug:
+            case Level.Info:
+                UnityEngine.Debug.Log(message, context);
+                break;
+            case Level.Warning:
+                UnityEngine.Debug.LogWarning(message, context);
+                break;
+            case Level.Error:
+                UnityEngine.Debug.LogError(message, context);
+                break;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/1_Script/Common/Logger.cs.meta b/Assets/1_Script/Common/Logger.cs.meta
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index 0000000..9f12225
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@@ -0,0 +1,11 @@
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diff --git a/Assets/1_Script/Editor.meta b/Assets/1_Script/Editor.meta
new file mode 100644
index 0000000..31c4eac
--- /dev/null
+++ b/Assets/1_Script/Editor.meta
@@ -0,0 +1,8 @@
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diff --git a/Assets/1_Script/Editor/EventAggregatorDebugger.cs b/Assets/1_Script/Editor/EventAggregatorDebugger.cs
new file mode 100644
index 0000000..6008982
--- /dev/null
+++ b/Assets/1_Script/Editor/EventAggregatorDebugger.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+using UnityEditor;
+using UnityEngine;
+
+/// <summary>
+/// Window → EventAggregator Debugger 메뉴에서 구독 현황을 확인할 수 있는 에디터 창입니다.
+/// </summary>
+public class EventAggregatorDebugger : EditorWindow
+{
+    Vector2 scroll;
+
+    [MenuItem("Window/EventAggregator Debugger")]
+    static void Open() => GetWindow<EventAggregatorDebugger>("EA Debugger");
+
+    void OnGUI()
+    {
+        GUILayout.Label("EventAggregator Subscriptions", EditorStyles.boldLabel);
+        scroll = EditorGUILayout.BeginScrollView(scroll);
+
+        foreach (var info in EventAggregatorInspector.GetSubscriptions())
+        {
+            EditorGUILayout.BeginHorizontal();
+            EditorGUILayout.LabelField(info.EventType.Name, GUILayout.Width(150));
+            EditorGUILayout.LabelField($"{info.SubscriberCount} subscriber(s)");
+            EditorGUILayout.EndHorizontal();
+        }
+
+        EditorGUILayout.EndScrollView();
+    }
+}
\ No newline at end of file
diff --git a/Assets/1_Script/Editor/EventAggregatorDebugger.cs.meta b/Assets/1_Script/Editor/EventAggregatorDebugger.cs.meta
new file mode 100644
index 0000000..1475899
--- /dev/null
+++ b/Assets/1_Script/Editor/EventAggregatorDebugger.cs.meta
@@ -0,0 +1,11 @@
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diff --git a/Assets/1_Script/Editor/EventAggregatorInspector.cs b/Assets/1_Script/Editor/EventAggregatorInspector.cs
new file mode 100644
index 0000000..00dd6d0
--- /dev/null
+++ b/Assets/1_Script/Editor/EventAggregatorInspector.cs
@@ -0,0 +1,50 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+using UnityEditor;
+using UnityEngine;
+
+
+/// <summary>
+/// EventAggregator의 내부 subscribers 딕셔너리를 리플렉션으로 읽어 구독 정보를 제공하는 헬퍼 클래스입니다.
+/// </summary>
+public static
+class EventAggregatorInspector
+{
+    public struct SubscriptionInfo
+    {
+        public Type EventType;
+        public int SubscriberCount;
+    }
+
+    /// <summary>
+    /// 현재 등록된 모든 이벤트 타입과 구독자 수를 반환합니다.
+    /// </summary>
+    public static IEnumerable<SubscriptionInfo> GetSubscriptions()
+    {
+        var eaType = typeof(EventAggregator);
+        var field = eaType.GetField("subscribers", BindingFlags.Static | BindingFlags.NonPublic);
+        if (field == null)
+            yield break;
+
+        var dict = field.GetValue(null) as Dictionary<Type, object>;
+        if (dict == null)
+            yield break;
+
+        foreach (var kvp in dict)
+        {
+            var listObj = kvp.Value;
+            var handlersField = listObj.GetType()
+                .GetField("handlers", BindingFlags.Instance | BindingFlags.NonPublic);
+            var list = handlersField?.GetValue(listObj) as ICollection;
+            int count = list != null ? list.Count : 0;
+
+            yield return new SubscriptionInfo
+            {
+                EventType = kvp.Key,
+                SubscriberCount = count
+            };
+        }
+    }
+}
diff --git a/Assets/1_Script/Editor/EventAggregatorInspector.cs.meta b/Assets/1_Script/Editor/EventAggregatorInspector.cs.meta
new file mode 100644
index 0000000..ca23c39
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diff --git a/Assets/1_Script/Play/PlayManager.cs.meta b/Assets/1_Script/Play/PlayManager.cs.meta
index 86382c1..af3cf9c 100644
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@@ -1,2 +1,11 @@
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diff --git a/Assets/1_Script/Player/PlayerContoller.cs.meta b/Assets/1_Script/Player/PlayerContoller.cs.meta
index 936db93..eb54acb 100644
--- a/Assets/1_Script/Player/PlayerContoller.cs.meta
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diff --git a/Assets/1_Script/Test.meta b/Assets/1_Script/Test.meta
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new file mode 100644
index 0000000..2a73a1c
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diff --git a/Assets/1_Script/Test/EventAggreagator/EventTest.unity.meta b/Assets/1_Script/Test/EventAggreagator/EventTest.unity.meta
new file mode 100644
index 0000000..8ac903f
--- /dev/null
+++ b/Assets/1_Script/Test/EventAggreagator/EventTest.unity.meta
@@ -0,0 +1,7 @@
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diff --git a/Assets/1_Script/Test/EventAggreagator/EventTestPub.cs b/Assets/1_Script/Test/EventAggreagator/EventTestPub.cs
new file mode 100644
index 0000000..b68c3c6
--- /dev/null
+++ b/Assets/1_Script/Test/EventAggreagator/EventTestPub.cs
@@ -0,0 +1,19 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class EventTestPub : MonoBehaviour
+{
+    [SerializeField]
+    private int count = 0;
+
+    // Update is called once per frame
+    void Update()
+    {
+        if(Input.GetKeyDown(KeyCode.Space))
+        {
+            count++;
+            EventAggregator.Publish(count);
+        }
+    }
+}
diff --git a/Assets/1_Script/Test/EventAggreagator/EventTestPub.cs.meta b/Assets/1_Script/Test/EventAggreagator/EventTestPub.cs.meta
new file mode 100644
index 0000000..eee6126
--- /dev/null
+++ b/Assets/1_Script/Test/EventAggreagator/EventTestPub.cs.meta
@@ -0,0 +1,11 @@
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diff --git a/Assets/1_Script/Test/EventAggreagator/EventTestSub.cs b/Assets/1_Script/Test/EventAggreagator/EventTestSub.cs
new file mode 100644
index 0000000..46a0382
--- /dev/null
+++ b/Assets/1_Script/Test/EventAggreagator/EventTestSub.cs
@@ -0,0 +1,40 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class EventTestSub : MonoBehaviour
+{
+    [SerializeField] private bool isSubscribe = true;
+    private void OnEnable()
+    {
+        isSubscribe = true;
+        EventAggregator.Subscribe<int>(OnEvent);
+    }
+
+
+    private void OnEvent(int i)
+    {
+        Logger.LogInfo($"EventTestSub : {i}");
+
+    }
+
+    private void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.Escape))
+        {
+            Unsubscribe();
+        }
+    }
+    private void OnDisable()
+    {
+        Unsubscribe();
+    }
+
+
+    private void Unsubscribe()
+    {
+        if(!isSubscribe) return;
+        isSubscribe = false;
+        EventAggregator.Unsubscribe<int>(OnEvent);
+    }
+}
diff --git a/Assets/1_Script/Test/EventAggreagator/EventTestSub.cs.meta b/Assets/1_Script/Test/EventAggreagator/EventTestSub.cs.meta
new file mode 100644
index 0000000..6540309
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diff --git a/Assets/Packages/ClosedXML.0.105.0/nuget-logo.png.meta b/Assets/Packages/ClosedXML.0.105.0/nuget-logo.png.meta
index bff649f..5b3b0b6 100644
--- a/Assets/Packages/ClosedXML.0.105.0/nuget-logo.png.meta
+++ b/Assets/Packages/ClosedXML.0.105.0/nuget-logo.png.meta
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index f93c222..a9db979 100644
--- a/Assets/Packages/DocumentFormat.OpenXml.3.1.1/icon.png.meta
+++ b/Assets/Packages/DocumentFormat.OpenXml.3.1.1/icon.png.meta
@@ -128,7 +128,8 @@ TextureImporter:
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index 93b19ae..2db02b6 100644
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index 8b4b36e..7622e7b 100644
--- a/Assets/Packages/SixLabors.Fonts.1.0.0/sixlabors.fonts.128.png.meta
+++ b/Assets/Packages/SixLabors.Fonts.1.0.0/sixlabors.fonts.128.png.meta
@@ -128,7 +128,8 @@ TextureImporter:
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