In the 1980s, a 12-year-old boy who was born in Tuandi (residential area), Huiwu (Hamada Yue), made a major decision after graduating from primary school. He will stay in the regiment with all kinds of infrastructure for the rest of his life and never go to the outside world. In this regard, Ah Wu's mother (Ozuka Ning Ning) seems to agree that she does not interfere with her son's decision, only to watch the strange thinking of this teenager to rely on their own strength to grow and become strong step by step. Over the years, Ah Wu strictly followed the schedule. He idolized the great vacuum karate guru Dashan Beida and vowed to protect all the good friends of the regiment. As time went by, 107 people of the same grade in the primary school where Ah Wu was located left the regiment one by one. During this period, he and Qingmei bamboo Mason Island Youli (Bo Fu), his good friend Tian Xianming (Yongshan Huadou), and his girlfriend Ogata Hayaji (Cangke Kanai) have each experienced life twists and turns. The regiment was declining and deserted day by day, and in a twinkling of an eye, I found that Ah Wu was already alone. This film is based on the original work of Kubo Temple Kenhiko.