diff --git a/Salvavida.Generator.Debug/UserModel.cs b/Salvavida.Generator.Debug/UserModel.cs
index fd435c5..51146ea 100644
--- a/Salvavida.Generator.Debug/UserModel.cs
+++ b/Salvavida.Generator.Debug/UserModel.cs
@@ -21,7 +21,7 @@ public partial class UserModel : ISavable<UserModel>
     {
         public event PropertyChangeEventHandler<UserModel> PropertyChanged;
 
-        public ISavable Parent { get; private set; }
+        public ISavable SvParent { get; private set; }
 
         public string SvId { get; set; }
 
@@ -66,7 +66,7 @@ public void SetDirty(bool dirty, bool recursively)
 
         public void SetParent(ISavable parent)
         {
-            Parent = parent;
+            SvParent = parent;
         }
     }
 
diff --git a/Salvavida.Generator/BasicCodeGenerator.cs b/Salvavida.Generator/BasicCodeGenerator.cs
index 26f4389..e394de2 100644
--- a/Salvavida.Generator/BasicCodeGenerator.cs
+++ b/Salvavida.Generator/BasicCodeGenerator.cs
@@ -385,7 +385,7 @@ protected virtual void WriteImplementationsHead(ScriptBuilder sb, CodeGeneration
             sb.WriteLine($"public event PropertyChangeEventHandler<{_infoStore!.className}> PropertyChanged;");
             sb.WriteLine();
             AddAttributePreventSerialize(sb, true);
-            sb.WriteLine("public ISavable Parent { get; private set; }");
+            sb.WriteLine("public ISavable SvParent { get; private set; }");
             sb.WriteLine();
             AddAttributePreventSerialize(sb, false);
             sb.WriteLine("private string _svId;");
@@ -449,7 +449,7 @@ protected virtual void WriteImplementationsFoot(ScriptBuilder sb, CodeGeneration
             {
                 using (sb.CurlyBracketsScope())
                 {
-                    sb.WriteLine("Parent = parent;");
+                    sb.WriteLine("SvParent = parent;");
                 }
             }
             sb.WriteLine();
diff --git a/Salvavida/Package/CodeGen/Salvavida.Generator.dll b/Salvavida/Package/CodeGen/Salvavida.Generator.dll
index 1a18ca3..713985e 100644
Binary files a/Salvavida/Package/CodeGen/Salvavida.Generator.dll and b/Salvavida/Package/CodeGen/Salvavida.Generator.dll differ
diff --git a/Salvavida/Package/CodeGen/Salvavida.Generator.pdb b/Salvavida/Package/CodeGen/Salvavida.Generator.pdb
index 03cc854..008eea7 100644
Binary files a/Salvavida/Package/CodeGen/Salvavida.Generator.pdb and b/Salvavida/Package/CodeGen/Salvavida.Generator.pdb differ
diff --git a/Salvavida/Package/Runtime/IBackupService.cs b/Salvavida/Package/Runtime/IBackupService.cs
index 9e95230..c16188d 100644
--- a/Salvavida/Package/Runtime/IBackupService.cs
+++ b/Salvavida/Package/Runtime/IBackupService.cs
@@ -1,5 +1,6 @@
-#if USE_UNITASK && !SV_FORCE_TASK
 using System.Threading;
+
+#if USE_UNITASK && !SV_FORCE_TASK
 using Task = Cysharp.Threading.Tasks.UniTask;
 #else
 using Task = System.Threading.Tasks.Task;
diff --git a/Salvavida/Package/Runtime/ISavable.cs b/Salvavida/Package/Runtime/ISavable.cs
index ed55e51..7552620 100644
--- a/Salvavida/Package/Runtime/ISavable.cs
+++ b/Salvavida/Package/Runtime/ISavable.cs
@@ -2,7 +2,7 @@ namespace Salvavida
 {
     public interface ISavable
     {
-        ISavable? Parent { get; }
+        ISavable? SvParent { get; }
 
         string? SvId { get; set; }
         bool IsDirty { get; }
diff --git a/Salvavida/Package/Runtime/ObservableCollection.cs b/Salvavida/Package/Runtime/ObservableCollection.cs
index 56dfdd3..7bd5457 100644
--- a/Salvavida/Package/Runtime/ObservableCollection.cs
+++ b/Salvavida/Package/Runtime/ObservableCollection.cs
@@ -16,7 +16,7 @@ public ObservableCollection(string svid, bool saveSeparately)
         private readonly string _svid;
         protected bool _isDirty = true;
 
-        public ISavable? Parent { get; protected set; }
+        public ISavable? SvParent { get; protected set; }
         bool ISavable.IsDirty => _isDirty;
 
         public abstract bool IsSavableCollection { get; }
@@ -36,9 +36,9 @@ void ISavable.SetDirty(bool dirty, bool _)
 
         public void TrySave(Serializer? serializer, PathBuilder pathBuilder)
         {
-            if (Parent == null || string.IsNullOrEmpty(SvId) || !_isDirty)
+            if (SvParent == null || string.IsNullOrEmpty(SvId) || !_isDirty)
                 return;
-            serializer ??= Parent.GetSerializer();
+            serializer ??= SvParent.GetSerializer();
             if (serializer == null)
                 return;
             pathBuilder.Push(SvId, SvHelper.GetPathType(this));
@@ -67,7 +67,7 @@ void ISavable.SetParent(ISavable? parent)
 
         protected void SetParent(ISavable? parent)
         {
-            Parent = parent;
+            SvParent = parent;
         }
 
         public virtual void BeforeSerialize(Serializer serializer)
@@ -125,7 +125,7 @@ protected void TryUnWatch(TElem? obj)
         protected void OnCollectionChange(CollectionChangeInfo<TElem?> e)
         {
             _isDirty = true;
-            var serializer = Parent?.GetSerializer();
+            var serializer = SvParent?.GetSerializer();
             if (serializer != null)
             {
                 if (SaveSeparately)
@@ -159,7 +159,7 @@ protected void TrySaveSeparatelyByEvent(Serializer serializer, PathBuilder pathB
 
         protected virtual void TrySaveItems(Serializer serializer, PathBuilder pathBuilder, CollectionChangeInfo<TElem?> e)
         {
-            if (string.IsNullOrEmpty(SvId) || Parent == null)
+            if (string.IsNullOrEmpty(SvId) || SvParent == null)
                 return;
             switch (e.Action)
             {
diff --git a/Salvavida/Package/Runtime/SvHelper.cs b/Salvavida/Package/Runtime/SvHelper.cs
index 6a1fe02..ecf779e 100644
--- a/Salvavida/Package/Runtime/SvHelper.cs
+++ b/Salvavida/Package/Runtime/SvHelper.cs
@@ -30,7 +30,7 @@ public static void SetChild<T>(this ISavable parent, T child)
 
         public static ReadOnlySpan<char> GetParentPathAsSpan(this ISavable? savable, PathBuilder pathBuilder)
         {
-            return GetSavePathAsSpan(savable?.Parent, pathBuilder);
+            return GetSavePathAsSpan(savable?.SvParent, pathBuilder);
         }
 
         public static ReadOnlySpan<char> GetSavePathAsSpan(this ISavable? savable, PathBuilder pathBuilder)
@@ -47,7 +47,7 @@ public static ReadOnlySpan<char> GetSavePathAsSpan(this ISavable? savable, PathB
             {
                 TryThrowOnSvIdEmpty(savable);
                 _tempPathBuilder.Push(savable.SvId!, GetPathType(savable));
-                savable = savable.Parent;
+                savable = savable.SvParent;
             }
             while (!_tempPathBuilder.IsEmpty)
             {
@@ -72,7 +72,7 @@ public static PathBuilder.Type GetPathType<T>(T sv) where T : ISavable
             {
                 if (savable is ISerializeRoot root)
                     return root.Serializer;
-                savable = savable.Parent;
+                savable = savable.SvParent;
             }
             if (x > 100)
                 throw new StackOverflowException();
@@ -105,7 +105,7 @@ public static void TrySave<TParent, T>(this TParent savable, string propName, T
             }
 
             // if savable's parent is not null, then the save action will perform by it's parent, not it self.
-            var parent = savable.Parent;
+            var parent = savable.SvParent;
             if (parent != null)
                 return;
 
@@ -138,7 +138,7 @@ public static void TryThrowOnSvIdEmpty<T>(T sv) where T : ISavable
                 throw new NullReferenceException(nameof(sv));
             if (string.IsNullOrEmpty(sv.SvId))
             {
-                if (sv.Parent != null)
+                if (sv.SvParent != null)
                     throw new ArgumentNullException($"The child object of {sv.GetSavePathAsSpan(new PathBuilder()).ToString()} has a empty SvId");
                 else
                     throw new ArgumentException(nameof(sv.SvId));