Claire

She is an outgoing friend of Ryou and Rina. Somewhat protective with her friends, she is a little hard on Ryou in hopes of toughening him up for the real world. Currently has a boyfriend despite Ryou’s feelings for her. She cheers on Rina’s love for Ryou. However Claire starts to act strangely as times passes. Ryou hears a few things about her that are unsettling. [From MangaGamer]