A freshman at Hirin Middle School with Yuu. She and Yuu have been friends for awhile, but Yuu didn't notice her when she first saw her. Nana completely changed her look from the last time Yuu saw her, replacing her eye glasses with contacts and styling her hair similarly to idol, Sawamiya Erina. She is into music. She is no longer interested in things that Yuu currently likes, because she believes those are for children.