Natsuki is a member of the idol group STARISH. He adores everything cute and small, and tends to dote on anyone he finds cute. He's gentle, airheaded, and naive, and adores cooking despite being dangerously bad at it. He has incredible physical strength. He has a split personality called Satsuki, who's aggressive, short-tempered, and protective over Natsuki. His split personality manifests whenever Natuski's glasses are removed. Natsuki doesn't remember anything Satsuki does.