diff --git a/CruiseAssist/CruiseAssistConfigManager.cs b/CruiseAssist/CruiseAssistConfigManager.cs
index 21d2dea..7ce4572 100644
--- a/CruiseAssist/CruiseAssistConfigManager.cs
+++ b/CruiseAssist/CruiseAssistConfigManager.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
 using BepInEx.Configuration;
 using CruiseAssist.Commons;
 using CruiseAssist.Enums;
@@ -82,8 +84,10 @@ internal class CruiseAssistConfigManager(ConfigFile config) : ConfigManager(conf
             var reset = CruiseAssistPlugin.Seed != -1;
             if (!reset) return;
             CruiseAssistPlugin.Seed = -1;
-            CruiseAssistPlugin.History = new List<int>();
-            CruiseAssistPlugin.Bookmark = new List<int>();
+            CruiseAssistPlugin.History = [];
+            CruiseAssistPlugin.HistoryDistinct = [];
+            CruiseAssistPlugin.Bookmark = [];
+            CruiseAssistPlugin.BookmarkSet = [];
             LogManager.LogInfo("clear seed.");
         }
         else
@@ -91,7 +95,9 @@ internal class CruiseAssistConfigManager(ConfigFile config) : ConfigManager(conf
             if (CruiseAssistPlugin.Seed == GameMain.galaxy.seed) return;
             CruiseAssistPlugin.Seed = GameMain.galaxy.seed;
             CruiseAssistPlugin.History = ListUtils.ParseToIntList(Bind("Save", $"History_{CruiseAssistPlugin.Seed}", "").Value);
+            CruiseAssistPlugin.HistoryDistinct = Enumerable.Reverse(CruiseAssistPlugin.History).Distinct().ToList();
             CruiseAssistPlugin.Bookmark = ListUtils.ParseToIntList(Bind("Save", $"Bookmark_{CruiseAssistPlugin.Seed}", "").Value);
+            CruiseAssistPlugin.BookmarkSet = [..CruiseAssistPlugin.Bookmark];
             LogManager.LogInfo($"change seed {CruiseAssistPlugin.Seed}.");
         }
     }
diff --git a/CruiseAssist/CruiseAssistPlugin.cs b/CruiseAssist/CruiseAssistPlugin.cs
index 7efd272..c555cd2 100644
--- a/CruiseAssist/CruiseAssistPlugin.cs
+++ b/CruiseAssist/CruiseAssistPlugin.cs
@@ -148,6 +148,28 @@ public class CruiseAssistPlugin : BaseUnityPlugin
     internal static readonly List<ICruiseAssistExtensionAPI> Extensions = [];
     private Harmony _harmony;
     private static bool _initialized;
+
+    public static void AddHistory(int id)
+    {
+        if (History.Count >= 128)
+        {
+            History.RemoveAt(0);
+        }
+        History.Add(id);
+        HistoryDistinct = Enumerable.Reverse(History).Distinct().ToList();
+    }
+
+    public static void RemoveHistoryAt(int index)
+    {
+        History.RemoveAt(index);
+        HistoryDistinct = Enumerable.Reverse(History).Distinct().ToList();
+    }
+
+    public static void ClearHistory()
+    {
+        History.Clear();
+        HistoryDistinct.Clear();
+    }
     
     public static bool HasBookmark(int id) => BookmarkSet.Contains(id);
 
diff --git a/CruiseAssist/Patches/Patch_GameMain.cs b/CruiseAssist/Patches/Patch_GameMain.cs
index 17ff42f..cab2f2c 100644
--- a/CruiseAssist/Patches/Patch_GameMain.cs
+++ b/CruiseAssist/Patches/Patch_GameMain.cs
@@ -11,10 +11,10 @@ internal class Patch_GameMain
     [HarmonyPostfix]
     public static void Begin_Postfix()
     {
+        CruiseAssistStarListUI.OnReset();
         ConfigManager.CheckConfig(ConfigManager.Step.GameMainBegin);
         CruiseAssistPlugin.Extensions.ForEach(delegate(ICruiseAssistExtensionAPI extension)
         {
-            CruiseAssistStarListUI.OnReset();
             extension.CheckConfig(ConfigManager.Step.GameMainBegin.ToString());
         });
     }
diff --git a/CruiseAssist/Patches/Patch_PlayerMoveWalk.cs b/CruiseAssist/Patches/Patch_PlayerMoveWalk.cs
index fae4cf4..d95df05 100644
--- a/CruiseAssist/Patches/Patch_PlayerMoveWalk.cs
+++ b/CruiseAssist/Patches/Patch_PlayerMoveWalk.cs
@@ -23,11 +23,7 @@ internal class Patch_PlayerMoveWalk
         {
             if (CruiseAssistPlugin.History.Count == 0 || CruiseAssistPlugin.History.Last() != GameMain.localPlanet.id)
             {
-                if (CruiseAssistPlugin.History.Count >= 128)
-                {
-                    CruiseAssistPlugin.History.RemoveAt(0);
-                }
-                CruiseAssistPlugin.History.Add(GameMain.localPlanet.id);
+                CruiseAssistPlugin.AddHistory(GameMain.localPlanet.id);
                 ConfigManager.CheckConfig(ConfigManager.Step.State);
             }
         }
diff --git a/CruiseAssist/UI/CruiseAssistStarListUI.cs b/CruiseAssist/UI/CruiseAssistStarListUI.cs
index f71a319..f826200 100644
--- a/CruiseAssist/UI/CruiseAssistStarListUI.cs
+++ b/CruiseAssist/UI/CruiseAssistStarListUI.cs
@@ -70,10 +70,6 @@ public static class CruiseAssistStarListUI
         {
             fixedHeight = 40f
         };
-        _hRangeLabelHighlightStyle = new GUIStyle(_hRangeLabelStyle)
-        {
-            fixedHeight = 40f
-        };
         _nActionButtonStyle = new GUIStyle(CruiseAssistMainUI.BaseButtonStyle)
         {
             fixedWidth = 40f,
@@ -232,7 +228,7 @@ public static class CruiseAssistStarListUI
                 var enumBookmark = ListSelected != 1 ? CruiseAssistPlugin.Bookmark : Enumerable.Reverse(CruiseAssistPlugin.History);
                 if (ListSelected == 1 && ActionSelected[ListSelected] != 2 && CruiseAssistPlugin.Conf.HideDuplicateHistoryFlag)
                 {
-                    enumBookmark = Enumerable.Reverse(CruiseAssistPlugin.HistoryDistinct);
+                    enumBookmark = CruiseAssistPlugin.HistoryDistinct;
                 }
 
                 var listIndex = -1;
@@ -334,7 +330,7 @@ public static class CruiseAssistStarListUI
                                             {
                                                 if (listIndex != 0)
                                                 {
-                                                    CruiseAssistPlugin.History.RemoveAt(CruiseAssistPlugin.History.Count - 1 - listIndex);
+                                                    CruiseAssistPlugin.RemoveHistoryAt(CruiseAssistPlugin.History.Count - 1 - listIndex);
                                                     CruiseAssistMainUI.NextCheckGameTick = GameMain.gameTick + 300L;
                                                 }