diff --git a/Entity/Item/Item.cs b/Entity/Item/Item.cs
index d1e80f3..ff32974 100644
--- a/Entity/Item/Item.cs
+++ b/Entity/Item/Item.cs
@@ -592,12 +592,14 @@ namespace Milimoe.FunGame.Core.Entity
                 if (item.Skills.Active != null)
                 {
                     item.Skills.Active.Level = copyLevel ? (Skills.Active?.Level ?? 1) : 1;
+                    item.Skills.Active.Guid = item.Guid;
                 }
                 foreach (Skill skill in Skills.Passives)
                 {
                     Skill newskill = skill.Copy();
                     newskill.Item = item;
                     newskill.Level = copyLevel ? skill.Level : 1;
+                    newskill.Guid = item.Guid;
                     item.Skills.Passives.Add(newskill);
                 }
                 foreach (Skill skill in Skills.Magics)
@@ -605,6 +607,7 @@ namespace Milimoe.FunGame.Core.Entity
                     Skill newskill = skill.Copy();
                     newskill.Item = item;
                     newskill.Level = copyLevel ? skill.Level : 1;
+                    newskill.Guid = item.Guid;
                     item.Skills.Magics.Add(newskill);
                 }
             }
diff --git a/Library/Common/JsonConverter/CharacterConverter.cs b/Library/Common/JsonConverter/CharacterConverter.cs
index 752bcb8..ae9c3f4 100644
--- a/Library/Common/JsonConverter/CharacterConverter.cs
+++ b/Library/Common/JsonConverter/CharacterConverter.cs
@@ -277,7 +277,7 @@ namespace Milimoe.FunGame.Core.Library.Common.JsonConverter
             writer.WriteNumber(nameof(Character.ExCritDMG), value.ExCritDMG);
             writer.WriteNumber(nameof(Character.ExEvadeRate), value.ExEvadeRate);
             writer.WritePropertyName(nameof(Character.Skills));
-            JsonSerializer.Serialize(writer, value.Skills, options);
+            JsonSerializer.Serialize(writer, value.Skills.Where(s => s.Guid == Guid.Empty), options);
             writer.WritePropertyName(nameof(Character.Items));
             JsonSerializer.Serialize(writer, value.Items, options);
             writer.WriteEndObject();