Ken, the former leader of Tokyo's infamous biker gang, finds his rebellious spirit challenged when he falls for a barmaid. His newfound affection leads him to abandon the gang's wild ways, prompting feelings of betrayal among his comrades. This tension escalates especially with Jin, a troubled youth who idolized Ken but now sees him as a traitor. As loyalties fracture and conflicts arise, the gang faces internal strife, testing the bonds of friendship and the meaning of loyalty in a world where love and rebellion collide.