Huanhuan, an autistic girl, was abandoned by her patriarchal parents in an abandoned orchard when her younger brother was arrested. She was later adopted by an orphan, Lu Jiu, and renamed Little Apple. The two depended on each other for life, and Lu Jiu had to pick up coal and break his leg in order to pay for school fees. In order to treat Lu Jiu's leg, Little Apple promised to donate bone marrow to his younger brother, but his parents deceived him by offering him 50,000 yuan as bait. In fact, they only gave him 500 yuan and Ming coins. After Lu Jiu learned about it, he dragged his injured leg into the city to find Little Apple. He took out the certificate of abandonment and helped Little Apple break away from his original family under the pressure of public opinion. Many years later, Little Apple was admitted to Tsinghua University and returned to his hometown to become a grassroots cadre. He stayed with Lu Jiu, who had succeeded in starting a business, and the years were peaceful.
