After loyally serving ten years inside for killing a rival gang's boss, Tachibana (Ishibashi) is expected to pick up where he left off in his career as hitman for the Hirakawa syndicate. When he is given Yuki, a prostitute, as a 'welcome back' present, Tachibana finds himself drawn into looking after her, rescuing her from both a serious drug habit and a brutal pimp. After beating up the pimp, Tachibana discovers that his foe is a member of the larger, and more powerful, Hokushin gang, proving to have dire and deadly consequences for him and Yuki...