After graduating from the musicals, Hironari became an actor and has starred in TV series and movies, as well as one other stage production. He has also voiced Kamen Rider Garren in a few video games, and has also released some music. Hironari has also released one DVD and one photobook. In 2008, Hironari changed his name to Kousei Amano (天野 浩成 Amano Kōsei). His agency is LDH Inc.