diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Factory.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Factory.cs
index 17619f8..a58df9a 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Factory.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Factory.cs
@@ -133,7 +133,7 @@ namespace Cysharp.Threading.Tasks
         /// </summary>
         public static Action Action(Func<UniTaskVoid> asyncAction)
         {
-            return AsyncAction.Create(asyncAction);
+            return () => asyncAction().Forget();
         }
 
         /// <summary>
@@ -141,7 +141,7 @@ namespace Cysharp.Threading.Tasks
         /// </summary>
         public static Action Action(Func<CancellationToken, UniTaskVoid> asyncAction, CancellationToken cancellationToken)
         {
-            return AsyncActionWithCancellation.Create(asyncAction, cancellationToken);
+            return () => asyncAction(cancellationToken).Forget();
         }
 
 #if UNITY_2018_3_OR_NEWER
@@ -152,7 +152,7 @@ namespace Cysharp.Threading.Tasks
         /// </summary>
         public static UnityEngine.Events.UnityAction UnityAction(Func<UniTaskVoid> asyncAction)
         {
-            return AsyncUnityAction.Create(asyncAction);
+            return () => asyncAction().Forget();
         }
 
         /// <summary>
@@ -161,7 +161,7 @@ namespace Cysharp.Threading.Tasks
         /// </summary>
         public static UnityEngine.Events.UnityAction UnityAction(Func<CancellationToken, UniTaskVoid> asyncAction, CancellationToken cancellationToken)
         {
-            return AsyncUnityActionWithCancellation.Create(asyncAction, cancellationToken);
+            return () => asyncAction(cancellationToken).Forget();
         }
 
 #endif
@@ -260,194 +260,6 @@ namespace Cysharp.Threading.Tasks
                 return task.Status;
             }
         }
-
-        sealed class AsyncAction : ITaskPoolNode<AsyncAction>
-        {
-            static TaskPool<AsyncAction> pool;
-
-            public AsyncAction NextNode { get; set; }
-
-            static AsyncAction()
-            {
-                TaskPool.RegisterSizeGetter(typeof(AsyncAction), () => pool.Size);
-            }
-
-            readonly Action runDelegate;
-            Func<UniTaskVoid> voidAction;
-
-            AsyncAction()
-            {
-                runDelegate = Run;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            public static Action Create(Func<UniTaskVoid> voidAction)
-            {
-                if (!pool.TryPop(out var item))
-                {
-                    item = new AsyncAction();
-                }
-
-                item.voidAction = voidAction;
-                return item.runDelegate;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            void Run()
-            {
-                var call = voidAction;
-                voidAction = null;
-                if (call != null)
-                {
-                    pool.TryPush(this);
-                    call.Invoke();
-                }
-            }
-        }
-
-        sealed class AsyncActionWithCancellation : ITaskPoolNode<AsyncActionWithCancellation>
-        {
-            static TaskPool<AsyncActionWithCancellation> pool;
-
-            public AsyncActionWithCancellation NextNode { get; set; }
-
-            static AsyncActionWithCancellation()
-            {
-                TaskPool.RegisterSizeGetter(typeof(AsyncActionWithCancellation), () => pool.Size);
-            }
-
-            readonly Action runDelegate;
-            CancellationToken cancellationToken;
-            Func<CancellationToken, UniTaskVoid> voidAction;
-
-            AsyncActionWithCancellation()
-            {
-                runDelegate = Run;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            public static Action Create(Func<CancellationToken, UniTaskVoid> voidAction, CancellationToken cancellationToken)
-            {
-                if (!pool.TryPop(out var item))
-                {
-                    item = new AsyncActionWithCancellation();
-                }
-
-                item.voidAction = voidAction;
-                item.cancellationToken = cancellationToken;
-                return item.runDelegate;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            void Run()
-            {
-                var call = voidAction;
-                var ct = cancellationToken;
-                voidAction = null;
-                cancellationToken = default;
-                if (call != null)
-                {
-                    pool.TryPush(this);
-                    call.Invoke(ct);
-                }
-            }
-        }
-
-#if UNITY_2018_3_OR_NEWER
-
-        sealed class AsyncUnityAction : ITaskPoolNode<AsyncUnityAction>
-        {
-            static TaskPool<AsyncUnityAction> pool;
-
-            public AsyncUnityAction NextNode { get; set; }
-
-            static AsyncUnityAction()
-            {
-                TaskPool.RegisterSizeGetter(typeof(AsyncUnityAction), () => pool.Size);
-            }
-
-            readonly UnityEngine.Events.UnityAction runDelegate;
-            Func<UniTaskVoid> voidAction;
-
-            AsyncUnityAction()
-            {
-                runDelegate = Run;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            public static UnityEngine.Events.UnityAction Create(Func<UniTaskVoid> voidAction)
-            {
-                if (!pool.TryPop(out var item))
-                {
-                    item = new AsyncUnityAction();
-                }
-
-                item.voidAction = voidAction;
-                return item.runDelegate;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            void Run()
-            {
-                var call = voidAction;
-                voidAction = null;
-                if (call != null)
-                {
-                    pool.TryPush(this);
-                    call.Invoke();
-                }
-            }
-        }
-
-        sealed class AsyncUnityActionWithCancellation : ITaskPoolNode<AsyncUnityActionWithCancellation>
-        {
-            static TaskPool<AsyncUnityActionWithCancellation> pool;
-
-            public AsyncUnityActionWithCancellation NextNode { get; set; }
-
-            static AsyncUnityActionWithCancellation()
-            {
-                TaskPool.RegisterSizeGetter(typeof(AsyncUnityActionWithCancellation), () => pool.Size);
-            }
-
-            readonly UnityEngine.Events.UnityAction runDelegate;
-            CancellationToken cancellationToken;
-            Func<CancellationToken, UniTaskVoid> voidAction;
-
-            AsyncUnityActionWithCancellation()
-            {
-                runDelegate = Run;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            public static UnityEngine.Events.UnityAction Create(Func<CancellationToken, UniTaskVoid> voidAction, CancellationToken cancellationToken)
-            {
-                if (!pool.TryPop(out var item))
-                {
-                    item = new AsyncUnityActionWithCancellation();
-                }
-
-                item.voidAction = voidAction;
-                item.cancellationToken = cancellationToken;
-                return item.runDelegate;
-            }
-
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            void Run()
-            {
-                var call = voidAction;
-                var ct = cancellationToken;
-                voidAction = null;
-                cancellationToken = default;
-                if (call != null)
-                {
-                    pool.TryPush(this);
-                    call.Invoke(ct);
-                }
-            }
-        }
-
-#endif
     }
 
     internal static class CompletedTasks
diff --git a/src/UniTask/Assets/Scenes/SandboxMain.cs b/src/UniTask/Assets/Scenes/SandboxMain.cs
index 27d2979..28326be 100644
--- a/src/UniTask/Assets/Scenes/SandboxMain.cs
+++ b/src/UniTask/Assets/Scenes/SandboxMain.cs
@@ -383,7 +383,11 @@ public class SandboxMain : MonoBehaviour
         //{
 
 
-
+        okButton.onClick.AddListener(UniTask.UnityAction(async () =>
+        {
+            await UniTask.Yield();
+            Debug.Log("Yeha");
+        }));
 
 
         //}).Forget();