diff --git a/README.md b/README.md
index 4be8a55..2b7fc95 100644
--- a/README.md
+++ b/README.md
@@ -47,33 +47,26 @@ public class MyTestClass
 `GameViewResolutionAttribute` is an NUnit test attribute class to set custom resolution to `GameView` before run test.
 
 This attribute can attached to test method, test class (`TestFixture`) and test assembly.
-Can be used with async Test and UnityTest.
+Can be used with sync Test, async Test and UnityTest.
 
 Usage:
 
 ```csharp
-using System.Collections;
 using NUnit.Framework;
 using TestHelper.Attributes;
-using UnityEngine.TestTools;
 
 [TestFixture]
 public class MyTestClass
 {
-    [UnityTest]
+    [Test]
     [GameViewResolution(640, 480, "VGA")]
-    public IEnumerator MyTestMethod()
+    public void MyTestMethod()
     {
-        yield return null; // wait for one frame to apply resolution.
-
-        // e.g., test using GraphicRaycaster.
+        // e.g., test using GraphicRaycaster, Graphics Tests Framework, etc...
     }
 }
 ```
 
-> **Warning**  
-> Wait for one frame to apply resolution.
-
 > **Note**  
 > In batchmode, open `GameView` window.
 
diff --git a/Runtime/Attributes/GameViewResolutionAttribute.cs b/Runtime/Attributes/GameViewResolutionAttribute.cs
index e840979..0c7f1fa 100644
--- a/Runtime/Attributes/GameViewResolutionAttribute.cs
+++ b/Runtime/Attributes/GameViewResolutionAttribute.cs
@@ -2,10 +2,11 @@
 // This software is released under the MIT License.
 
 using System;
+using System.Collections;
 using NUnit.Framework;
 using NUnit.Framework.Interfaces;
-using NUnit.Framework.Internal;
 using UnityEngine;
+using UnityEngine.TestTools;
 #if UNITY_EDITOR
 using TestHelper.Wrappers.UnityEditor;
 using UnityEditor;
@@ -17,7 +18,7 @@ namespace TestHelper.Attributes
     /// Set <c>GameView</c> resolution before SetUp test.
     /// </summary>
     [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Method)]
-    public class GameViewResolutionAttribute : NUnitAttribute, IApplyToContext
+    public class GameViewResolutionAttribute : NUnitAttribute, IOuterUnityTestAction
     {
         private readonly uint _width;
         private readonly uint _height;
@@ -45,16 +46,6 @@ public GameViewResolutionAttribute(GameViewResolution resolution)
             (_width, _height, _name) = resolution.GetParameter();
         }
 
-        /// <inheritdoc />
-        public void ApplyToContext(ITestExecutionContext context)
-        {
-#if UNITY_2022_2_OR_NEWER
-            SetResolutionUsingPlayModeWindow();
-#else
-            SetResolution();
-#endif
-        }
-
         // ReSharper disable once UnusedMember.Local
         private void SetResolutionUsingPlayModeWindow()
         {
@@ -106,5 +97,22 @@ private void SetResolution()
             gameView.SelectedSizeIndex(index);
 #endif
         }
+
+        /// <inheritdoc />
+        public IEnumerator BeforeTest(ITest test)
+        {
+#if UNITY_2022_2_OR_NEWER
+            SetResolutionUsingPlayModeWindow();
+#else
+            SetResolution();
+#endif
+            yield return null;
+        }
+
+        /// <inheritdoc />
+        public IEnumerator AfterTest(ITest test)
+        {
+            yield return null;
+        }
     }
 }
diff --git a/Tests/Runtime/Attributes/GameViewResolutionAttributeTest.cs b/Tests/Runtime/Attributes/GameViewResolutionAttributeTest.cs
index 02ecaa6..2c5732c 100644
--- a/Tests/Runtime/Attributes/GameViewResolutionAttributeTest.cs
+++ b/Tests/Runtime/Attributes/GameViewResolutionAttributeTest.cs
@@ -13,24 +13,32 @@ namespace TestHelper.Attributes
     [UnityPlatform(RuntimePlatform.OSXEditor, RuntimePlatform.WindowsEditor, RuntimePlatform.LinuxEditor)]
     public class GameViewResolutionAttributeTest
     {
-        [Test]
+        [Test, Order(0)]
         [GameViewResolution(1920, 1080, "Full HD")]
-        public async Task AttachToAsyncTest_SetScreenSizeToFullHD()
+        public void Attach_SetScreenSizeToFullHD()
         {
-            await Task.Yield(); // Wait to apply change GameView resolution
-
             Assert.That(Screen.width, Is.EqualTo(1920));
             Assert.That(Screen.height, Is.EqualTo(1080));
         }
 
-        [UnityTest]
+        [Test, Order(0)]
+        [GameViewResolution(GameViewResolution.XGA)]
+        public async Task AttachToAsyncTest_SetScreenSizeToFullHD()
+        {
+            Assert.That(Screen.width, Is.EqualTo(1024));
+            Assert.That(Screen.height, Is.EqualTo(768));
+
+            await Task.Yield(); // Not require awaiting before test
+        }
+
+        [UnityTest] // Run last
         [GameViewResolution(GameViewResolution.VGA)]
         public IEnumerator AttachToUnityTest_SetScreenSizeToVGA()
         {
-            yield return null; // Wait to apply change GameView resolution
-
             Assert.That(Screen.width, Is.EqualTo(640));
             Assert.That(Screen.height, Is.EqualTo(480));
+
+            yield return null; // Not require awaiting before test
         }
     }
 }