Uzawa Rii is a third-year student at Hanasakigawa Girls' High School and is a member of Glitter*Green. She is the bassist for Glitter*Green, and a salesperson at Edogawa Gakki. She and the other members of Glitter*Green are members of the Hanasakigawa Girls' High School student council.

Rii is a calm girl who usually keeps a check over Hinako and tries to make sure she doesn't get into trouble or ruin their bands "image". Despite that, she has a plush demon, Debeko, she occasionally uses as a puppet.