
Baiko Tsuboike (born 1962) was a Japanese yakuza who was affiliated with the Dojima-gumi subsidiary of the Tojo-kai clan in Kabukicho, Tokyo during the 2000s. On 11 December 2005, he and several former Dojima-gumi yakuza confronted Kazuma Kiryu at the docks of Tokyo, intent on avenging his alleged murder of their patriarch Sohei Dojima (which led to them being transformed to the Kazama-gumi, which was run by a less cruel and more idealistic boss, Shintaro Kazama). However, Goro Majima joined the fight on Kiryu's side, and the two men beat down all of the Dojima-gumi remnants.