Kōji Seto

is a Japanese actor and singer associated with D-Boys, an acting troupe produced by Watanabe Entertainment. His major works include lead roles as Wataru Kurenai in ''Kamen Rider Kiva''; and supporting roles as Satoru Okura in Atashinchi no Danshi, Ariake Yamato in Otomen, and Eiji Kikumaru in ''Musical: The Prince of Tennis''. He starred as Mori Ranmaru in the drama, ''Gō: Hime-tachi no Sengoku''.

In 2010, he was named one of the most promising actors and actresses, placing 7th in a poll conducted by Oricon. Through his role with ''Kamen Rider Kiva'', he was also the lead vocalist of their promotional rock band Tetra-Fang. Provided by Wikipedia