He is Gu Beicheng, the crown prince of the Gu family in Yuncheng. He is seriously ill but is playing games with his life. She is the adopted daughter of the Gu family and the future mistress appointed by the head of the Gu family. He married her only because she forced his beloved woman away and killed his unborn child; she married him not only because of her grandfather's force, but because she had already been deeply in love with her. "Gu Nansheng, do you regret it? Do you regret marrying a loser like me?" "How could it be possible? I will pester you until death."