diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmExporter.cs b/Assets/VRM10/Runtime/IO/IVrmExporter.cs
similarity index 99%
rename from Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmExporter.cs
rename to Assets/VRM10/Runtime/IO/IVrmExporter.cs
index b47bb7ea9..22facea42 100644
--- a/Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmExporter.cs
+++ b/Assets/VRM10/Runtime/IO/IVrmExporter.cs
@@ -1,7 +1,8 @@
 using System;
 using System.Collections.Generic;
+using VrmLib;
 
-namespace VrmLib
+namespace UniVRM10
 {
     public interface IVrmExporter
     {
diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmExporter.cs.meta b/Assets/VRM10/Runtime/IO/IVrmExporter.cs.meta
similarity index 100%
rename from Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmExporter.cs.meta
rename to Assets/VRM10/Runtime/IO/IVrmExporter.cs.meta
diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmStorage.cs b/Assets/VRM10/Runtime/IO/IVrmStorage.cs
similarity index 98%
rename from Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmStorage.cs
rename to Assets/VRM10/Runtime/IO/IVrmStorage.cs
index 905008a27..ed25e887a 100644
--- a/Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmStorage.cs
+++ b/Assets/VRM10/Runtime/IO/IVrmStorage.cs
@@ -1,7 +1,8 @@
 using System;
 using System.Collections.Generic;
+using VrmLib;
 
-namespace VrmLib
+namespace UniVRM10
 {
     public interface IVrmStorage
     {
diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmStorage.cs.meta b/Assets/VRM10/Runtime/IO/IVrmStorage.cs.meta
similarity index 100%
rename from Assets/VRM10/vrmlib/Runtime/ImportExport/IVrmStorage.cs.meta
rename to Assets/VRM10/Runtime/IO/IVrmStorage.cs.meta
diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport/ModelLoader.cs b/Assets/VRM10/Runtime/IO/ModelLoader.cs
similarity index 99%
rename from Assets/VRM10/vrmlib/Runtime/ImportExport/ModelLoader.cs
rename to Assets/VRM10/Runtime/IO/ModelLoader.cs
index d1aa3492c..1a50df480 100644
--- a/Assets/VRM10/vrmlib/Runtime/ImportExport/ModelLoader.cs
+++ b/Assets/VRM10/Runtime/IO/ModelLoader.cs
@@ -1,7 +1,8 @@
 using System;
 using System.Linq;
+using VrmLib;
 
-namespace VrmLib
+namespace UniVRM10
 {
     public static class ModelLoader
     {
diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport/ModelLoader.cs.meta b/Assets/VRM10/Runtime/IO/ModelLoader.cs.meta
similarity index 100%
rename from Assets/VRM10/vrmlib/Runtime/ImportExport/ModelLoader.cs.meta
rename to Assets/VRM10/Runtime/IO/ModelLoader.cs.meta
diff --git a/Assets/VRM10/vrmlib/Runtime/ImportExport.meta b/Assets/VRM10/vrmlib/Runtime/ImportExport.meta
deleted file mode 100644
index b5f2845b8..000000000
--- a/Assets/VRM10/vrmlib/Runtime/ImportExport.meta
+++ /dev/null
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 9089f6791c42b144ca66b29ea0f186db
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: