Kento Nakajima (中島健人, Nakajima Kento, born March 13, 1994) is a Japanese actor and singer. He is best known as being a member of the Japanese idol groups Sexy Zone and Yuma Nakayama w/B.I.Shadow. He belongs to Starto Entertainment. Kento Nakajima (中島健人, Nakajima Kento, born March 13, 1994) is a Japanese actor and singer. He is best known as being a member of the Japanese idol groups Sexy Zone and Yuma Nakayama w/B.I.Shadow. He belongs to Starto Entertainment.