diff --git a/Assets/VRM/UniVRM/Editor/EditorLanguages.cs b/Assets/VRM/UniVRM/Editor/EditorLanguages.cs
index 14416d7ce..b2cf23463 100644
--- a/Assets/VRM/UniVRM/Editor/EditorLanguages.cs
+++ b/Assets/VRM/UniVRM/Editor/EditorLanguages.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using UnityEditor;
 
 namespace VRM.M17N
 {
@@ -143,11 +144,35 @@ namespace VRM.M17N
     }
     public static class Getter
     {
-        public static M17N.Languages Lang;
+        const string LANG_KEY = "VRM_LANG";
+
+        static Languages? m_lang;
+
+        public static Languages Lang
+        {
+            get
+            {
+                if (!m_lang.HasValue)
+                {
+                    m_lang = EnumUtil.TryParseOrDefault<Languages>(EditorPrefs.GetString(LANG_KEY, default(Languages).ToString()));
+                }
+                return m_lang.Value;
+            }
+        }
 
         public static string Msg<T>(T key) where T : Enum
         {
             return M17N.MsgCache<T>.Get(Lang, key);
         }
+
+        public static void OnGuiSelectLang()
+        {
+            var lang = (M17N.Languages)EditorGUILayout.EnumPopup("lang", Lang);
+            if (lang != Lang)
+            {
+                m_lang = lang;
+                EditorPrefs.SetString(LANG_KEY, M17N.Getter.Lang.ToString());
+            }
+        }
     }
 }
diff --git a/Assets/VRM/UniVRM/Editor/Format/VRMExporterWizard.cs b/Assets/VRM/UniVRM/Editor/Format/VRMExporterWizard.cs
index 87f162cc7..a981a8403 100644
--- a/Assets/VRM/UniVRM/Editor/Format/VRMExporterWizard.cs
+++ b/Assets/VRM/UniVRM/Editor/Format/VRMExporterWizard.cs
@@ -296,9 +296,8 @@ namespace VRM
                 m_Inspector = Editor.CreateEditor(m_settings);
             }
 
-            M17N.Getter.Lang = EnumUtil.TryParseOrDefault<M17N.Languages>(EditorPrefs.GetString(LANG_KEY, default(M17N.Languages).ToString()));
+            M17N.Getter.OnGuiSelectLang();
         }
-        const string LANG_KEY = "VRM_LANG";
 
         void OnDisable()
         {
@@ -360,12 +359,7 @@ namespace VRM
             EditorGUIUtility.labelWidth = 150;
 
             // lang
-            var lang = (M17N.Languages)EditorGUILayout.EnumPopup("lang", M17N.Getter.Lang);
-            if (lang != M17N.Getter.Lang)
-            {
-                M17N.Getter.Lang = lang;
-                EditorPrefs.SetString(LANG_KEY, M17N.Getter.Lang.ToString());
-            }
+            M17N.Getter.OnGuiSelectLang();
 
             EditorGUILayout.LabelField("ExportRoot");
             {
diff --git a/Assets/VRM/UniVRM/Editor/Meta/VRMMetaObjectEditor.cs b/Assets/VRM/UniVRM/Editor/Meta/VRMMetaObjectEditor.cs
index 25cd3cf11..bfa24652b 100644
--- a/Assets/VRM/UniVRM/Editor/Meta/VRMMetaObjectEditor.cs
+++ b/Assets/VRM/UniVRM/Editor/Meta/VRMMetaObjectEditor.cs
@@ -51,6 +51,21 @@ namespace VRM
         SerializedProperty m_LicenseType;
         SerializedProperty m_OtherLicenseUrl;
 
+        static string RequiredMessage(string name)
+        {
+            switch (M17N.Getter.Lang)
+            {
+                case M17N.Languages.ja:
+                    return $"必須項目。{name} を入力してください";
+
+                case M17N.Languages.en:
+                    return $"{name} is required";
+
+                default:
+                    throw new System.NotImplementedException();
+            }
+        }
+
         private void OnEnable()
         {
             m_target = (VRMMetaObject)target;
@@ -62,7 +77,7 @@ namespace VRM
                         {
                             if (string.IsNullOrEmpty(prop.stringValue))
                             {
-                                return ($"必須項目。{prop.name} を入力してください", MessageType.Error);
+                                return (RequiredMessage(prop.name), MessageType.Error);
                             }
                             return ("", MessageType.None);
                         });
@@ -70,7 +85,7 @@ namespace VRM
                         {
                             if (string.IsNullOrEmpty(prop.stringValue))
                             {
-                                return ($"必須項目。{prop.name} を入力してください", MessageType.Error);
+                                return (RequiredMessage(prop.name), MessageType.Error);
                             }
                             return ("", MessageType.None);
                         });
@@ -78,7 +93,7 @@ namespace VRM
                         {
                             if (string.IsNullOrEmpty(prop.stringValue))
                             {
-                                return ($"必須項目。{prop.name} を入力してください", MessageType.Error);
+                                return (RequiredMessage(prop.name), MessageType.Error);
                             }
                             return ("", MessageType.None);
                         });
@@ -117,6 +132,8 @@ namespace VRM
         bool m_foldoutDistribution = true;
         void VRMMetaObjectGUI(SerializedObject so)
         {
+            M17N.Getter.OnGuiSelectLang();
+
             so.Update();
 
             if (VRMVersion.IsNewer(m_exporterVersion.stringValue))