A college senior, Shuhei, is blackmailed by a professor into joining the school's sumo team. He is aided by a group of misfits who must team together to defeat their rivals or face disgrace and the disbandment of the sumo club.
| Actor | Role |
|---|---|
 Masahiro MotokiShuhei Yamamoto | Shuhei Yamamoto |
 Misa ShimizuNatsuko Kawashima | Natsuko Kawashima |
 Naoto TakenakaAoki Tomio | Aoki Tomio |
 Akira EmotoProfessor Tokichi Anayama | Professor Tokichi Anayama |
 Kaori MizushimaChie Asai | Chie Asai |
 Hiromasa TaguchiHosaku Tanaka | Hosaku Tanaka |
| KKentarô SakaiNot listed | Not listed |
 Masaaki TakaraiHaruo Yamamoto | Haruo Yamamoto |
 Masaru MatsudaTatsuo Horino | Tatsuo Horino |
| HHiroshi MiyasakaHokudo no Ken | Hokudo no Ken |
 Goro KataokaHayashi | Hayashi |
 Naomasa MusakaSumo OB | Sumo OB |
 Fuyuki MurakamiYasujiro Mine | Yasujiro Mine |
 Mutsuko SakuraYuki Anayama | Yuki Anayama |
| RRobert HoffmanGeorge Smiley | George Smiley |