The children are not Li Yingzi and Da Zhuang, but Zhou Shuang and Da Zhuang's children, because Zhou Shuang wants to divorce Da Zhuang, but Liu Fu refuses to let them go. Unless someone replaces Zhou Shuang as his daughter-in-law, Li Yingzi is willing to stay for Zhou Shuang and Wu Zhou. In this way, Li Yingzi became the daughter-in-law and the mother of the child.
My Second Brother and Sister is a chronological drama directed by Liu Jiacheng and starring Yu Zhen, Hao Lei, Yu Yang, Zou Hanhong, Song Jiateng, Xu Nannan, Qian Bo, Yin Xinzi and Cui Baoyue.