diff --git a/Assets/VRM/Editor/Format/VRMImporterMenu.cs b/Assets/VRM/Editor/Format/VRMImporterMenu.cs
index a2fb45009..12071d70b 100644
--- a/Assets/VRM/Editor/Format/VRMImporterMenu.cs
+++ b/Assets/VRM/Editor/Format/VRMImporterMenu.cs
@@ -2,11 +2,6 @@
 using UnityEditor;
 using UnityEngine;
 using UniGLTF;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using VRMShaders;
-using Object = UnityEngine.Object;
 
 namespace VRM
 {
@@ -22,32 +17,36 @@ namespace VRM
 
             if (Application.isPlaying)
             {
+                // import vrm to scene without asset creation
                 ImportRuntime(path);
-                return;
             }
-
-            if (path.StartsWithUnityAssetPath())
+            else
             {
-                Debug.LogWarningFormat("disallow import from folder under the Assets");
-                return;
-            }
+                // import vrm to asset
+                if (path.StartsWithUnityAssetPath())
+                {
+                    Debug.LogWarningFormat("disallow import from folder under the Assets");
+                    return;
+                }
 
-            var prefabPath = EditorUtility.SaveFilePanel("save prefab", "Assets", Path.GetFileNameWithoutExtension(path), "prefab");
-            if (string.IsNullOrEmpty(path))
-            {
-                return;
-            }
+                var prefabPath = EditorUtility.SaveFilePanel("save prefab", "Assets", Path.GetFileNameWithoutExtension(path), "prefab");
+                if (string.IsNullOrEmpty(path))
+                {
+                    return;
+                }
 
-            ImportAsset(path, UnityPath.FromFullpath(prefabPath));
+                vrmAssetPostprocessor.ImportVrmAndCreatePrefab(path, UnityPath.FromFullpath(prefabPath));
+            }
         }
 
+        /// <summary>
+        /// load into scene
+        /// </summary>
+        /// <param name="path">vrm path</param>
         static void ImportRuntime(string path)
         {
-            // load into scene
-            var data = new GlbFileParser(path).Parse();
-            // VRM extension を parse します
-            var vrm = new VRMData(data);
-            using (var context = new VRMImporterContext(vrm))
+            using (var data = new GlbFileParser(path).Parse())
+            using (var context = new VRMImporterContext(new VRMData(data)))
             {
                 var loaded = context.Load();
                 loaded.EnableUpdateWhenOffscreen();
@@ -55,46 +54,5 @@ namespace VRM
                 Selection.activeGameObject = loaded.gameObject;
             }
         }
-
-        static void ImportAsset(string path, UnityPath prefabPath)
-        {
-            if (!prefabPath.IsUnderAssetsFolder)
-            {
-                Debug.LogWarningFormat("out of asset path: {0}", prefabPath);
-                return;
-            }
-
-            // import as asset
-            var data = new GlbFileParser(path).Parse();
-            var vrm = new VRMData(data);
-
-            Action<IEnumerable<UnityPath>> onCompleted = texturePaths =>
-            {
-                //
-                // after textures imported
-                //
-                var map = texturePaths
-                    .Select(x => x.LoadAsset<Texture2D>())
-                    .Where(x => x != null)
-                    .ToDictionary(x => new SubAssetKey(x), x => x as Object);
-
-                using (var context = new VRMImporterContext(vrm, externalObjectMap: map))
-                {
-                    var editor = new VRMEditorImporterContext(context, prefabPath);
-                    foreach (var textureInfo in editor.TextureDescriptorGenerator.Get().GetEnumerable())
-                    {
-                        VRMShaders.TextureImporterConfigurator.Configure(textureInfo, context.TextureFactory.ExternalTextures);
-                    }
-                    var loaded = context.Load();
-                    editor.SaveAsAsset(loaded);
-                }
-            };
-
-            using (var context = new VRMImporterContext(vrm))
-            {
-                var editor = new VRMEditorImporterContext(context, prefabPath);
-                editor.ConvertAndExtractImages(onCompleted);
-            }
-        }
     }
 }
diff --git a/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs b/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs
index 0ae4e0f24..fa328e9c9 100644
--- a/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs
+++ b/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs
@@ -10,9 +10,9 @@ using VRMShaders;
 
 namespace VRM
 {
-#if !VRM_STOP_ASSETPOSTPROCESSOR
     public class vrmAssetPostprocessor : AssetPostprocessor
     {
+#if !VRM_STOP_ASSETPOSTPROCESSOR
         static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths)
         {
             foreach (string path in importedAssets)
@@ -37,6 +37,7 @@ namespace VRM
                 }
             }
         }
+#endif
 
         static void ImportVrm(UnityPath vrmPath)
         {
@@ -47,6 +48,17 @@ namespace VRM
 
             var prefabPath = vrmPath.Parent.Child(vrmPath.FileNameWithoutExtension + ".prefab");
 
+            ImportVrmAndCreatePrefab(vrmPath.FullPath, prefabPath);
+        }
+
+        public static void ImportVrmAndCreatePrefab(string vrmPath, UnityPath prefabPath)
+        {
+            if (!prefabPath.IsUnderAssetsFolder)
+            {
+                Debug.LogWarningFormat("out of asset path: {0}", prefabPath);
+                return;
+            }
+
             /// <summary>
             /// これは EditorApplication.delayCall により呼び出される。
             /// 
@@ -62,7 +74,7 @@ namespace VRM
                     .ToDictionary(x => new SubAssetKey(x), x => x as UnityEngine.Object);
 
                 // 確実に Dispose するために敢えて再パースしている
-                using (var data = new GlbFileParser(vrmPath.FullPath).Parse())
+                using (var data = new GlbFileParser(vrmPath).Parse())
                 using (var context = new VRMImporterContext(new VRMData(data), externalObjectMap: map))
                 {
                     var editor = new VRMEditorImporterContext(context, prefabPath);
@@ -73,16 +85,16 @@ namespace VRM
                     var loaded = context.Load();
                     editor.SaveAsAsset(loaded);
                 }
+
             };
 
-            // extract texture images
-            using (var data = new GlbFileParser(vrmPath.FullPath).Parse())
+            using (var data = new GlbFileParser(vrmPath).Parse())
             using (var context = new VRMImporterContext(new VRMData(data)))
             {
                 var editor = new VRMEditorImporterContext(context, prefabPath);
+                // extract texture images
                 editor.ConvertAndExtractImages(onCompleted);
             }
         }
     }
-#endif
 }