diff --git a/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysics.uasset b/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysics.uasset
index db57ce6..21323d9 100644
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diff --git a/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysicsCollision0.uasset b/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysicsCollision0.uasset
index f8fb540..1425226 100644
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diff --git a/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysicsCollision1.uasset b/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysicsCollision1.uasset
index 5686522..5dd4cbe 100644
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diff --git a/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysicsCollision2.uasset b/Content/KawaiiPhysicsSample/Chain/AnimBP_ChainKawaiiPhysicsCollision2.uasset
index 1fc8f08..3666b75 100644
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diff --git a/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysics.uasset b/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysics.uasset
index c746c34..69eaf38 100644
Binary files a/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysics.uasset and b/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysics.uasset differ
diff --git a/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysicsSkirt.uasset b/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysicsSkirt.uasset
index 3c13bb7..f874aa7 100644
Binary files a/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysicsSkirt.uasset and b/Content/KawaiiPhysicsSample/GrayChan/AnimBP_GrayChanKawaiiPhysicsSkirt.uasset differ
diff --git a/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/AnimNode_KawaiiPhysics.cpp b/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/AnimNode_KawaiiPhysics.cpp
index 845878c..347503b 100644
--- a/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/AnimNode_KawaiiPhysics.cpp
+++ b/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/AnimNode_KawaiiPhysics.cpp
@@ -60,9 +60,12 @@ void FAnimNode_KawaiiPhysics::EvaluateSkeletalControl_AnyThread(FComponentSpaceP
 	const FBoneContainer& BoneContainer = Output.Pose.GetPose().GetBoneContainer();
 	FTransform ComponentTransform = Output.AnimInstanceProxy->GetComponentTransform();
 
-	if (!RootBone.IsValidToEvaluate(BoneContainer))
+	for (auto& RootBone : RootBones)
 	{
-		return;
+		if (!RootBone.IsValidToEvaluate(BoneContainer))
+		{
+			return;
+		}
 	}
 
 	if (ModifyBones.Num() == 0)
@@ -124,12 +127,20 @@ void FAnimNode_KawaiiPhysics::EvaluateSkeletalControl_AnyThread(FComponentSpaceP
 
 bool FAnimNode_KawaiiPhysics::IsValidToEvaluate(const USkeleton* Skeleton, const FBoneContainer& RequiredBones)
 {
-	return RootBone.IsValidToEvaluate(RequiredBones);
+	bool value = false;
+	for (auto& RootBone : RootBones)
+	{
+		value |= RootBone.IsValidToEvaluate(RequiredBones);
+	}
+	return value;
 }
 
 void FAnimNode_KawaiiPhysics::InitializeBoneReferences(const FBoneContainer& RequiredBones)
 {
-	RootBone.Initialize(RequiredBones);
+	for (auto& RootBone : RootBones)
+	{
+		RootBone.Initialize(RequiredBones);
+	}
 
 	for (auto& Bone : ModifyBones)
 	{
@@ -162,7 +173,10 @@ void FAnimNode_KawaiiPhysics::InitModifyBones(FComponentSpacePoseContext& Output
 	auto& RefSkeleton = Skeleton->GetReferenceSkeleton();
 
 	ModifyBones.Empty();
-	AddModifyBone(Output, BoneContainer, RefSkeleton, RefSkeleton.FindBoneIndex(RootBone.BoneName));
+	for (auto& RootBone : RootBones)
+	{
+		AddModifyBone(Output, BoneContainer, RefSkeleton, RefSkeleton.FindBoneIndex(RootBone.BoneName));
+	}
 	CalcBoneLength( ModifyBones[0], RefSkeleton.GetRefBonePose());
 }
 
@@ -677,6 +691,8 @@ void FAnimNode_KawaiiPhysics::ApplySimuateResult(FComponentSpacePoseContext& Out
 	for (int i = 1; i < ModifyBones.Num(); ++i)
 	{
 		FKawaiiPhysicsModifyBone& Bone = ModifyBones[i];
+		
+		if (Bone.ParentIndex == -1) continue;
 		FKawaiiPhysicsModifyBone& ParentBone = ModifyBones[Bone.ParentIndex];
 
 		if (ParentBone.ChildIndexs.Num() <= 1)
diff --git a/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/AnimNode_KawaiiPhysics.h b/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/AnimNode_KawaiiPhysics.h
index 3eec4cb..fb3ae98 100644
--- a/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/AnimNode_KawaiiPhysics.h
+++ b/Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/AnimNode_KawaiiPhysics.h
@@ -160,7 +160,7 @@ struct KAWAIIPHYSICS_API FAnimNode_KawaiiPhysics : public FAnimNode_SkeletalCont
 
 public:
 	UPROPERTY(EditAnywhere, Category = ModifyTarget)
-	FBoneReference RootBone;
+	TArray<FBoneReference> RootBones;
 	UPROPERTY(EditAnywhere, Category = ModifyTarget)
 	TArray<FBoneReference> ExcludeBones;
 
diff --git a/Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Private/AnimGraphNode_KawaiiPhysics.cpp b/Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Private/AnimGraphNode_KawaiiPhysics.cpp
index e8648c6..44894e4 100644
--- a/Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Private/AnimGraphNode_KawaiiPhysics.cpp
+++ b/Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Private/AnimGraphNode_KawaiiPhysics.cpp
@@ -29,7 +29,10 @@ FText UAnimGraphNode_KawaiiPhysics::GetNodeTitle(ENodeTitleType::Type TitleType)
 	{
 		FFormatNamedArguments Args;
 		Args.Add(TEXT("ControllerDescription"), GetControllerDescription());
-		Args.Add(TEXT("RootBoneName"), FText::FromName(Node.RootBone.BoneName));
+		for (auto& RootBone : Node.RootBones)
+		{
+			Args.Add(TEXT("RootBoneName"), FText::FromName(RootBone.BoneName));
+		}
 
 		// FText::Format() is slow, so we cache this to save on performance
 		if (TitleType == ENodeTitleType::ListView || TitleType == ENodeTitleType::MenuTitle)