watch 01:38 The Loop (TV) Do you like this video? This article is about a/an actor in Kamen Rider Kiva. Kouhei Kumai (熊井 幸平, Kumai Kōhei) is a Japanese actor and a former member of the acting group D-BOYS. He played the part of the guitarist Kengo Eritate in the 2008 Kamen Rider Series, Kamen Rider Kiva. External links Kouhei Kumai at Wikipedia Retrieved from "https://kamenrider.fandom.com/wiki/Kouhei_Kumai?oldid=225110" Categories: Kamen Rider Kiva Actors Community content is available under CC-BY-SA unless otherwise noted.