The Dojima-gumi was a subsidiary family of the Tojo-kai yakuza organization of Japan. Founded by Sohei Dojima and his cousin Shintaro Kazama, the family became one of the largest in the Tojo-kai, but the murder of Dojima by Akira Nishikiyama led to the family being broken up into the Kazama-gumi, Kenno-kai, Shibusawa-gumi, Taihei Association, and the Shibata-gumi. In 2006, Daigo Dojima became the clan's patriarch, and the Dojima-gumi would absorb some of its subsidiaries when they fell into trouble with other clans or lost their leaders.