In order to cut off her seven-year obsession with her stepbrother, Xu Zhining mistakenly took Pei Zeli as a one-night stand partner. Later, in order to put aside the relationship, she entered into a love agreement with him and obtained a license to live together with him. When the two were in love for a long time, Xu Zhaning was kidnapped, and Pei Zeli sacrificed his life to protect him. However, she learned that he was actually the boy she saved ten years ago, and mistakenly thought that everything was just to repay a favor. In order to force him away, she pretended to get back together with her stepbrother. Three years later, Pei Zeli returned and discovered that the daughter she had raised alone was actually her own flesh and blood. The knot was finally resolved and the family was reunited.
