Committee Chairperson

Committee Chairperson is a nickname given to this classmate by Natsuru Senō. Natsuru just assumes that she's the chairperson but it's really unclear if she's really the chairperson. She leads a trio of girls that makes makes female Natsuru's school life miserable. She generally comes with ways to exploit Natsuru to make money and amusement out of his female side.