Kouhei Kumai (熊井 幸平, Kumai Kōhei) (born July 27, 1990) is a Japanese actor and a former member of the acting group D-BOYS. He played the part of the guitarist Eritate Kengo in the 2008 Kamen Rider Series, Kamen Rider Kiva.

Biographie

Kouhei Kumai won the first place (Grand Prix) in Watanabe Entertainment´s official 2nd D-BOYS audition in 2005. He was one of "Rajikaru"'s 5 member and appeared from time to time on the NTV show. Afterwards he starred together with all D-BOYS in their first own TV production "DD-BOYS".He is one of the D-boys who holds an English proficiency and a bit Chinese.

In September 2008, it was announced that Kumai was leaving the D-BOYS, although he was still being represented by Watanabe Entertainment.

In February 2009 he was removed in the management of Watanabe Entertainment. His official profile linked in the Company's website are now closed and not working.

He is now under Office Shuu Management.