A girl who was the former leader of the Pater faction, one of the student unions making up Trinity General School. As a former member of the Tea Party, she is a childhood friend of Nagisa, another Tea Party leader, having grown up together for a long time. However, because they are in political opposition, she maintains a clear distinction between public and private matters. While she usually shows a cheerful and lively side, laughing as if always having fun, she is a girl whose true depths are hard to read, harboring worries she cannot easily share with others.