In a certain city in the south, there is a master named Liu Chengcheng who makes a living by riding a tricycle to attract customers. He is in his fifties this year, and his daughter Liu Xiaohua is eight years old and has just entered second grade. Liu Xiaohua is Liu Chengcheng. She used to be a garbage collectorThe baby girl who returned from the trash can has been living with her daughter since her husband passed away, relying on their low income every month to support their daily lives and their daughter's tuition expenses. Every evening, Liu ChengzhenI ride a tricycle to take my daughter to my workplace after class, and then continue to ride the bike to attract customers and earn money. And my obedient daughter also supports a small table on her own every day at this timeTruly do homework. Despite their low income and financial difficulties, the family bond between father and daughter is a warm reliance on each other.