菅原是黑田，一个流浪赌徒。当吸毒的刺客楠木的猎杀失败时，他挺身而出，代表大和田家族承担责任，但当帮派未能兑现对他的经济承诺时，黑田以无情的复仇行动瞄准了家族老板们。

The seventh in the shocking "Jingi Naki Tatakai" movie series, which exposes the true lives of the yakuza that is hidden by a mask of "jingi". The next stage of this continuing drama is the Kanmon Channel where the Owada and the Kyoei groups are battling for territorial rights and drug smuggling. The Owada sends their man, Tetsu, and his friend Shuji to kill the Kyoei boss. With the promise of fame and riches, Shuji takes the fall and goes to jail for 7 years. But when he's released, he discovers that he and Tetsu have been all but forgotten by the Owada. Feeling betrayed, Shuji takes matters into his own hands and becomes an unsuspecting pawn in an internal conflict and an assassination attempt on the Owada boss. And now angered, Shuji seeks revenge...

En 1968, Kuroda abat un chef de bande rival, Owada. Après sa période d'incarcération, il voit son ami Kusu, drogué et méconnaissable, expulsé par son groupe.

舞台は1968年（昭和43年）6月、門司港にて旅人の黒田修次は大和田組幹部で友人の楠鉄弥のために敵対する共栄会会長の正木巌を銃殺し、服役する。7年半の刑期を努めた黒田は楠を尋ねるが、そこには薬物中毒で大和田組を破門された、廃人同然の楠の姿があった。