Osu!! Karate Bu

Matsushita Tadashi, a second-year student at Kangokou High School in Osaka, is frequently bullied by students after class. His close friend Saitou Takaki faces similar treatment. Frustrated by the ongoing harassment, they decide to join the Karate Club, known among local youth gangs for training tough delinquents while appearing as a legitimate school club. However, upon joining, they discover that the club's existing members also target and mistreat them.