diff --git a/Content/NPC_BP.uasset b/Content/NPC_BP.uasset
index 8a559b0..a20b06f 100644
Binary files a/Content/NPC_BP.uasset and b/Content/NPC_BP.uasset differ
diff --git a/Source/SevenStars/NPC.cpp b/Source/SevenStars/NPC.cpp
index 632ac9b..25a253a 100644
--- a/Source/SevenStars/NPC.cpp
+++ b/Source/SevenStars/NPC.cpp
@@ -8,6 +8,20 @@ ANPC::ANPC()
 	PrimaryActorTick.bCanEverTick = true;
 }
 
+bool ANPC::CustomRandomBool()
+{
+	bool bool1 = FMath::RandBool();
+	if (bool1 == saveBool1 && bool1 == saveBool2) {
+		saveBool2 = saveBool1;
+		saveBool1 = !bool1;
+		return !bool1;
+	}
+	saveBool2 = saveBool1;
+	saveBool1 = bool1;
+	return bool1;
+}
+
+
 FString ANPC::GetQuestionLeft()
 {
 	if (NPC_Name == "Zyxel") {
diff --git a/Source/SevenStars/NPC.h b/Source/SevenStars/NPC.h
index a0c2c7b..7ffad00 100644
--- a/Source/SevenStars/NPC.h
+++ b/Source/SevenStars/NPC.h
@@ -16,6 +16,12 @@ public:
 	virtual void BeginPlay() override;
 	virtual void Tick(float DeltaTime) override;
 
+	bool saveBool1 = true;
+	bool saveBool2 = true;
+	UFUNCTION(BlueprintCallable)
+	bool CustomRandomBool();
+
+
 	UFUNCTION(BlueprintCallable)
 	FString GetQuestionLeft();
 	UFUNCTION(BlueprintCallable)