宇月 真織

Uzuki Mao (a.k.a. m@o; read as "Mao", sometimes rendered in Japanese as "マオ") is a Japanese singer and lyricist who is a member of project lights.

VGMDb: http://vgmdb.net/artist/15632

Not to be confused with the similarly-named songstress mao, who is a member of Peak A Soul+.