Qiu Ping Yamamoto (Masahiro Motoki) is a fourth-year student in the Department of Sociology of Li Jiao University, and he is about to graduate. However, he was found by Xue Shan (Akira Emoto), the thesis advisor and consultant of the Sumo Department of this university, and said that he could not give credit because he was too absent from class unless he was willing to join the Sumo Department of this university. Qiu Ping had no choice. There is only one skinny Aoki (Naoto Takenaka) in the sumo department, and he has been failing the grade for many years. The situation of several people who joined in succession was different: fatty Tanaka was a devout Christian; Chunxiong, a freshman, is Qiu Ping's younger brother, and his arrival is purely forced. They rushed into the army and lost again and again in the competition, which attracted everyone's ridicule and abuse. Faced with ridicule, they began to train seriously, hoping to get good results in the next competition. British student smillie also joined the sumo department. It's not what it used to be, but because smillie refused to take off her shorts and violated the rules of the game, she was deducted from each round. In the last round, smillie finally tore off her shorts. The sumo team won, and five people went their separate ways. Qiu Ping fell in love with sumo and stayed alone in the sumo department.