Takumi is a sexually frustrated high school freshman Yanki (Japanese delinquent) with an unrivaled iron fist. Along with his group of loyal friends, they plan to take over all Japanese high schools to be the top Yanki, but Takumi's first love deters him from this goal...

Takumi, the former boss of the Black Black Black Skull Gang, is about to graduate and he chooses Taiga as his successor. During the handover, a transfer student named Monji tries to usurp the throne of the Black Skull Gang.