diff --git a/Assets/VRM/Editor/Format/VRMEditorImporterContext.cs b/Assets/VRM/Editor/Format/VRMEditorImporterContext.cs
index efb01b671..b12327094 100644
--- a/Assets/VRM/Editor/Format/VRMEditorImporterContext.cs
+++ b/Assets/VRM/Editor/Format/VRMEditorImporterContext.cs
@@ -149,7 +149,7 @@ namespace VRM
                     .Where(x => x.IsUsed)
                     .Select(x => (new SubAssetKey(typeof(Texture2D), x.Texture.name), x.Texture))
                     .ToArray();
-            var vrmTextures = new VRMMtoonMaterialImporter(m_context.VRM);
+            var vrmTextures = new VRMMaterialImporter(m_context.VRM);
             var dirName = $"{m_prefabPath.FileNameWithoutExtension}.Textures";
             TextureExtractor.ExtractTextures(m_context.Parser, m_prefabPath.Parent.Child(dirName), vrmTextures.EnumerateAllTexturesDistinct, subAssets, (_x, _y) => { }, onTextureReloaded);
         }
diff --git a/Assets/VRM/Editor/Format/VRMImporterMenu.cs b/Assets/VRM/Editor/Format/VRMImporterMenu.cs
index f86014ccc..2eca60a7e 100644
--- a/Assets/VRM/Editor/Format/VRMImporterMenu.cs
+++ b/Assets/VRM/Editor/Format/VRMImporterMenu.cs
@@ -83,7 +83,7 @@ namespace VRM
                 using (var context = new VRMImporterContext(parser, map))
                 {
                     var editor = new VRMEditorImporterContext(context, prefabPath);
-                    foreach (var (key, textureInfo) in new VRMMtoonMaterialImporter(context.VRM).EnumerateAllTexturesDistinct(parser))
+                    foreach (var (key, textureInfo) in new VRMMaterialImporter(context.VRM).EnumerateAllTexturesDistinct(parser))
                     {
                         TextureImporterConfigurator.Configure(textureInfo, map.ToDictionary(x => x.name, x => x.texture as Texture2D));
                     }
diff --git a/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs b/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs
index 4709b1b28..4e35e2ad2 100644
--- a/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs
+++ b/Assets/VRM/Editor/Format/vrmAssetPostprocessor.cs
@@ -60,7 +60,7 @@ namespace VRM
                 using (var context = new VRMImporterContext(parser, map))
                 {
                     var editor = new VRMEditorImporterContext(context, prefabPath);
-                    foreach (var (key, textureInfo) in new VRMMtoonMaterialImporter(context.VRM).EnumerateAllTexturesDistinct(parser))
+                    foreach (var (key, textureInfo) in new VRMMaterialImporter(context.VRM).EnumerateAllTexturesDistinct(parser))
                     {
                         TextureImporterConfigurator.Configure(textureInfo, map.ToDictionary(x => x.name, x => x.texture as Texture2D));
                     }
diff --git a/Assets/VRM/Runtime/IO/VRMImporterContext.cs b/Assets/VRM/Runtime/IO/VRMImporterContext.cs
index b2834e087..8e1ec6b6c 100644
--- a/Assets/VRM/Runtime/IO/VRMImporterContext.cs
+++ b/Assets/VRM/Runtime/IO/VRMImporterContext.cs
@@ -26,7 +26,7 @@ namespace VRM
             {
                 VRM = vrm;
                 // override material importer
-                GltfMaterialImporter.GltfMaterialParamProcessors.Insert(0, new VRMMtoonMaterialImporter(VRM).TryCreateParam);
+                GltfMaterialImporter.GltfMaterialParamProcessors.Insert(0, new VRMMaterialImporter(VRM).TryCreateParam);
             }
             else
             {
diff --git a/Assets/VRM/Runtime/IO/VRMMtoonMaterialImporter.cs b/Assets/VRM/Runtime/IO/VRMMaterialImporter.cs
similarity index 98%
rename from Assets/VRM/Runtime/IO/VRMMtoonMaterialImporter.cs
rename to Assets/VRM/Runtime/IO/VRMMaterialImporter.cs
index 75470b3c5..f3b12bacf 100644
--- a/Assets/VRM/Runtime/IO/VRMMtoonMaterialImporter.cs
+++ b/Assets/VRM/Runtime/IO/VRMMaterialImporter.cs
@@ -6,10 +6,10 @@ using VRMShaders;
 
 namespace VRM
 {
-    public class VRMMtoonMaterialImporter
+    public class VRMMaterialImporter
     {
         readonly glTF_VRM_extensions m_vrm;
-        public VRMMtoonMaterialImporter(glTF_VRM_extensions vrm)
+        public VRMMaterialImporter(glTF_VRM_extensions vrm)
         {
             m_vrm = vrm;
         }
diff --git a/Assets/VRM/Runtime/IO/VRMMtoonMaterialImporter.cs.meta b/Assets/VRM/Runtime/IO/VRMMaterialImporter.cs.meta
similarity index 83%
rename from Assets/VRM/Runtime/IO/VRMMtoonMaterialImporter.cs.meta
rename to Assets/VRM/Runtime/IO/VRMMaterialImporter.cs.meta
index ea615db5e..3d007fd1d 100644
--- a/Assets/VRM/Runtime/IO/VRMMtoonMaterialImporter.cs.meta
+++ b/Assets/VRM/Runtime/IO/VRMMaterialImporter.cs.meta
@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: bad75b40d017eb74ba79f561d22dc372
+guid: 9dd63f87d0de96f4ca4ad4dcd8540584
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2
diff --git a/Assets/VRM/Tests/MToonTest.cs b/Assets/VRM/Tests/MToonTest.cs
index c2c651597..a48d15195 100644
--- a/Assets/VRM/Tests/MToonTest.cs
+++ b/Assets/VRM/Tests/MToonTest.cs
@@ -30,7 +30,7 @@ namespace VRM
             var vrmMaterial = VRMMaterialExporter.CreateFromMaterial(srcMaterial, textureManager);
             Assert.AreEqual(vrmMaterial.vectorProperties["_MainTex"], new float[] { 0.3f, 0.2f, 0.5f, 0.6f });
 
-            var materialImporter = new VRMMtoonMaterialImporter(new glTF_VRM_extensions
+            var materialImporter = new VRMMaterialImporter(new glTF_VRM_extensions
             {
                 materialProperties = new System.Collections.Generic.List<glTF_VRM_Material> { vrmMaterial }
             });
@@ -49,7 +49,7 @@ namespace VRM
 
             var importer = new VRMImporterContext(parser, null);
 
-            var materialImporter = new VRMMtoonMaterialImporter(importer.VRM);
+            var materialImporter = new VRMMaterialImporter(importer.VRM);
 
             Assert.AreEqual(73, parser.GLTF.materials.Count);
             Assert.True(materialImporter.TryCreateParam(parser, 0, out MaterialImportParam param));
diff --git a/Assets/VRM/Tests/VRMTextureEnumerateTests.cs b/Assets/VRM/Tests/VRMTextureEnumerateTests.cs
index 5776765ad..18d544b66 100644
--- a/Assets/VRM/Tests/VRMTextureEnumerateTests.cs
+++ b/Assets/VRM/Tests/VRMTextureEnumerateTests.cs
@@ -72,7 +72,7 @@ namespace VRM
                         },
                      }
                 };
-                var items = new VRMMtoonMaterialImporter(vrm).EnumerateAllTexturesDistinct(parser).ToArray();
+                var items = new VRMMaterialImporter(vrm).EnumerateAllTexturesDistinct(parser).ToArray();
                 Assert.AreEqual(1, items.Length);
             }
         }