Appears in chapter 75. She has been living in the school library for 10 years, and the last time she drank blood was when Hijiri graduated. Hijiri, Higuchi and Umeko assumed that she was in the same grade as them. After she desperately drinks Olivia's blood, she spits it out and comments that Olivia must have been descended from a line of vampire hunters, whose blood tastes awful to vampires.