On New Year's Eve, Sun Guilan, who favors boys over girls, dotes on her grandson while humiliating her granddaughter, Duoduo. Zheng Xiaoyun and her family had originally planned to give her parents 200,000 yuan for their retirement. After this family conflict, however, Chen Haifeng and his wife decide to withdraw the money. It turns out that the mother had long planned to give the money to her son, Zheng Hao, to open a shop. This exposes the family crisis caused by son preference. Zheng Hao keeps demanding more, and his mother even pressures her daughter to divorce. Zheng Xiaoyun stops giving in unconditionally, draws a clear line between family affection and money, and stands firm on the boundaries of her own household. Between her duty to support her parents and the exploitation of her family of origin, she seeks a more rational way to get along.