A pureblood vampire who attends the same school as Hiro, Reiri has long black hair, always dresses in a dark sailor fuku and has idol status at her school. In the manga, there are many scenes showing her in black underwear, but in the anime, those are reduced to panchira. Reiri made an attempt to get Hime's blood by using Hiro after she turn him into a lesser vampire. Though the plan failed, and Hiro was cured, Hime spared Reiri's life as she had no relation to the vampire in the hospital.