Yamaken-gumi

The Fourth Yamaken-gumi (四代目山健組, Yondaime Yamaken-gumi?) is a yakuza gang based in Kobe, Japan. It is the largest affiliate of the largest known yakuza syndicate in Japan, the Yamaguchi-gumi, followed by the Nagoya-based Kodo-kai. It takes its name from its founder, Kenichi Yamamoto.