Founding location | Kurume, Fukuoka, Japan |
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Years active | Since 1971 |
Membership (est.) | 320[1] |
Allies | Kudo-kai, Sinaloa cartel, Taishu-kai, Kumamoto-kai)[2] |
Rivals | The Namikawa-kai and the Yamaguchi-gumi |
The Dojin-kai (道仁会, Dōjin-kai) is a yakuza organization headquartered in Kurume, Fukuoka, on the Kyushu island of Japan,[3] a designated yakuza syndicate,[4] with approximately 320 members.[1] As well as being known as a militant yakuza organization, the Dojin-kai has also been known as a de facto drug cartel, as its activities have allegedly included large-scale drug trafficking, specifically methamphetamine trafficking, which is traditionally shunned in the yakuza world.
With its activities of drug trafficking, the Dojin-kai has allegedly been Japan's largest wholesale dealer in drugs since the late 20th century, after the disbanding of three other yakuza groups based in northern Kyushu; Tagawa-based Sadaoka-gumi, known as "[Japan's] Methlord in the Showa era" which was crushed by the Taishu-kai, Okawa-based Hamada-kai, and Kumamoto-based Yamano-kai.