Eisaku Yazawa, a short-statured tenth grader, harbors ambitions of joining a bōsōzoku motorcycle gang, clashing comically with his timid nature. Struggling to embody toughness, he frequently bluffs through confrontations, unintentionally convincing rivals—particularly Naoiki Aizawa, a gang leader fixated on retaliating against him—that he poses a legitimate threat. These misadventures spiral into heightened tensions, as his false bravado amplifies conflicts instead of diffusing them.

While occasionally displaying lewd inclinations, Eisaku avoids outright malice, navigating gang-related challenges with a fragile mask of confidence. The narrative prioritizes his humorous missteps and escalating misunderstandings over delving into his backstory or motivations for pursuing gang life.

A sequel, *Kuro Ageha*, shifts focus to a new protagonist seven years after the original story, leaving Eisaku’s future unresolved. The original video animation mirrors the manga’s tone, chronicling his futile attempts at toughness without substantive growth. Spin-offs, films, or extended media beyond the core manga and OVA offer no additional insight into his background or evolution.