diff --git a/CLUNL.Localization/CLUNL.Localization.csproj b/CLUNL.Localization/CLUNL.Localization.csproj
index 50c0958..d75b24c 100644
--- a/CLUNL.Localization/CLUNL.Localization.csproj
+++ b/CLUNL.Localization/CLUNL.Localization.csproj
@@ -3,14 +3,14 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.1</TargetFramework>
     <GenerateDocumentationFile>True</GenerateDocumentationFile>
-    <Version>0.0.5.0</Version>
+    <Version>0.0.6.0</Version>
     <PackageLicenseExpression></PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/creeperlv/CLUNL</PackageProjectUrl>
     <RepositoryUrl>https://github.com/creeperlv/CLUNL</RepositoryUrl>
     <Description>Localization processing part of Creeper Lv's Universal dotNet Library</Description>
     <Authors>Creeper Lv</Authors>
     <Company>Creeper Lv</Company>
-    <Copyright>Copyright (C) 2020-2021 Creeper Lv</Copyright>
+    <Copyright>Copyright (C) 2020-2022 Creeper Lv</Copyright>
     <PackageReleaseNotes>CLUNL.Localization, please see github for release note.</PackageReleaseNotes>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
   </PropertyGroup>
diff --git a/CLUNL.Localization/ILocalizable.cs b/CLUNL.Localization/ILocalizable.cs
new file mode 100644
index 0000000..acf6b0c
--- /dev/null
+++ b/CLUNL.Localization/ILocalizable.cs
@@ -0,0 +1,13 @@
+namespace CLUNL.Localization
+{
+    /// <summary>
+    /// Mark a class is localizable
+    /// </summary>
+    public interface ILocalizable
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        void ApplyLocalization();
+    }
+}
diff --git a/CLUNL.Localization/LocalizedString.cs b/CLUNL.Localization/LocalizedString.cs
new file mode 100644
index 0000000..68f5fff
--- /dev/null
+++ b/CLUNL.Localization/LocalizedString.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace CLUNL.Localization
+{
+    /// <summary>
+    /// Localized via Language.
+    /// </summary>
+    public class LocalizedString
+    {
+        /// <summary>
+        /// Initialize the string with LanguageID and fallback.
+        /// </summary>
+        /// <param name="ID"></param>
+        /// <param name="Fallback"></param>
+        public LocalizedString(string ID,string Fallback)
+        {
+            this.ID = ID;
+            this.Fallback = Fallback;
+        }
+        private string ID;
+        private string Fallback;
+        /// <summary>
+        /// Return the localized string.
+        /// </summary>
+        /// <returns></returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public override string ToString()
+        {
+            return Language.Find(ID, Fallback);
+        }
+        /// <summary>
+        /// Return the value from ToString();
+        /// </summary>
+        /// <param name="L"></param>
+        public static implicit operator string(LocalizedString L)
+        {
+            return L.ToString();
+        }
+    }
+}