Yūma Nakayama (中山優馬, Nakayama Yūma?, born January 13, 1994 in Osaka Prefecture, Japan) is a Japanese idol under the management of Johnny & Associates. He is the main member of Nakayama Yūma w/ B.I.Shadow and is also a member of a temporary group named NYC boys. He is also a member of Hey! Say! 7 West and a former member of TOP Kids.
Battery as Harada Takumi (NHK, 2008)
Samurai Tenkōsei as Mifune Yuta
Koishite Akuma as Kuromiya Ruka