Chizuru Minamoto Love.

Chizuru is a second year female student at Kouta's school. She appears to be a normal, albeit big-breasted girl, but is in fact a 400-year-old powerful fox deity (when she reveals herself, her hair goes from black to blond). She is constantly hanging around and on Kouta, though he is the only male she acts genuinely towards. She loves Kouta very much and wants to enter a "relationship of sin" with Kouta.