The school nurse of Hijirigasaka Academy and a magic user. A beautiful woman with a voluptuous figure with breasts even bigger than Mio's. She has hip-length, dark brown hair, red glasses and a 'beauty mark' under her left eye. The nurse usually adorns a green sweater with a white robe on top, a short skirt and long stockings. Chisato is a wise, caring person shrouded in mystery. A very powerful angel