diff --git a/README.md b/README.md
index 36e98c508..63d2dd099 100644
--- a/README.md
+++ b/README.md
@@ -10,4 +10,6 @@
 * [ ] off Force T-pose by default
 * [ ] SpringBone for Skirt ?
 * [ ] fix BlendShapeProxy preview for Unity-2017 or later
+* [ ] DisallowMultipleComponent
+* [ ] Obsolete(VRMLookAt => VRMLookAtHead + VRMLookAtBoneApplyer)
 
diff --git a/Scripts/Meta/VRMMetaInformation.cs b/Scripts/Meta/VRMMetaInformation.cs
index e6edd6281..865c63f1a 100644
--- a/Scripts/Meta/VRMMetaInformation.cs
+++ b/Scripts/Meta/VRMMetaInformation.cs
@@ -6,7 +6,7 @@ using UniGLTF;
 
 namespace VRM
 {
-    [Obsolete]
+    [Obsolete("reimport, use VRMMeta")]
     [Serializable]
     [DisallowMultipleComponent]
     public class VRMMetaInformation : MonoBehaviour, IEquatable<VRMMetaInformation>