Gu Heng passed through the book and became the "evil adopted son" of the Duke's palace. He was bound to the beloved sister system, only to find that his sister Gu Shiyun was a reborn Avenger. In order to survive, he appeared to be a playboy, but secretly doted on his sister to become stronger, outsmarted the prince, and resolved the crisis in the court. From confrontation to joining hands, the two brothers and sisters fight against powerful enemies together, staged a fantasy drama in which they counterattack to protect their sister and gain power.
