"Fight with me, and defeat the gang leader of this school!"
The class chairperson of Seijou School. Rouga calls her "Chairperson". She's the type that's too serious and feels the call of duty strongly, as well as being meddlesome and careful about appearances, but she aims to catch Rouga through battle. She was never any good at battle, but she trains hard every day in order to protect the peace of the school and to remain at Rouga's side.
Battle quote - "I will not forgive those who go against discipline!"