Sally is a strong professional woman. After losing her husband, she lived alone with 10-year-old son An Zaiyin. But unfortunately, she has blood cancer and her life span is only six months. An Zaiyin has been dependent on her mother since childhood and has a weak personality. In order to cultivate An Zai's ability to live independently, she sent her son to an orphanage in the suburbs. Ann is living a collective life with other children in the orphanage, and has cultivated self-reliance and leadership.