Zhu Xiaofan witnessed the growth process of the neighbor boy Bi Chujia (Yi Shengzu, Zheng Chuanwen, Niu Chengze, Luo Zonghua). In order to make Xiao Bi grow up better, Bi's mother (Zhang Chunfang), who was deceived into becoming pregnant and abandoned, married Bi Dashun (Cui Fusheng), a nearly 50-year-old civil servant from the mainland and Taiwan, when he was six years old. Bi Dashun treated Xiao Bi as himself, taught him to write and read, and prepared to train him to become a college student. However, because he was regarded as a "drag bottle", Xiao Bi was very alienated from him, and he did not hesitate to steal comic books, puppy love, bento, and fight with others in order to be angry with him. A matter related to money reduced the relationship between Bi Dashun and Xiao Bi to the lowest point. Bi's mother chose to motivate Xiao Bi in an extreme way when he was in a dilemma, so that he could see the richer meaning of life.