Akira Yamamoto (Masahiro Moto), a senior in the sociology department of National Education University, is about to graduate, but he is found by the professor of graduation thesis and the consultant of the sumo department of the university (Akira Hanamoto), saying that he is absent too much to give credits, unless he is willing to join the university sumo department. Qiu Ping has no choice. In the sumo department, there is only a thin Aoki (played by Naoko Takanaka) who has been held back for many years. The situation of several people who have joined the gang is different: fat Tanaka is a devout Christian; freshman Chunxiong is Qiu Ping's younger brother. He was forced to come. In a hurry, they lost one after another in the game, which drew ridicule and abuse from everyone. In the face of ridicule, they began to train seriously, hoping to get good results in the next competition. British student Smiley also joined the sumo department. What kind of path will the five of them take?