After conquering the male supporting role, the male protagonist became jealous

Zhou Lingshu learned from the system that her twin sister was reborn, and she was crazy and committed suicide because she was jealous of her sister marrying the person in charge of the He family. However, she obviously had someone she liked, but the system told her: "Your boyfriend is about to die." In order to save her lover, she had to make an exchange with the system. -Strategy for the crazy male second who is deeply in love with her sister. -After He Qishen was reborn, he was waiting for Zhou Yunzi to come and cancel the engagement, and then ask to exchange his sister to marry into the He family like in the previous life. -Zhou Lingshu, his wife whom he loved deeply in his previous life, but he not only did not wait for the cancellation of the engagement, but instead waited for the news that Zhou Lingshu was pursuing other men. In this case, he would...