The Vicious Female Supporting Role Becomes a Sister-Control Queen

The primary demon system bound the innocent, kind-hearted and naive Mu Anan, and since then, Mu Anan has become a sister-controller. "An'an, your mission is to steal the heroine's luck and stop her from cheating. Quick!" Mu Anan understood: "Whoever steals my sister's luck, I will beat you!" The demon system was speechless: "I'll let you steal the heroine's luck!" Mu Anan understood: "You can steal the heroine's luck, but you can't steal my sister's luck." Demonic system? ? ? "Then your sister is not the heroine, so what is she?" "Of course she's An An's sister~" How to break the bond with an ancestor? The demon system is crying. The female lead is white and black, the male lead is a loyal dog, the second male lead is crazy, and all the members have online IQs.