Kitami Reika

The mysterious, seductive school nurse and the main antagonist of the series. She seems to take a liking for Minase, and she knows about his experiments with black magic. She has a lengthy history. Twelve years ago, Kitami was the chosen as a human sacrifice for the ritual to summon the devil. However, it resulted in all of the cult members' demise and she made contract with the devil to save her life. Now she has her eyes on Imari whose body she plans to exchange soul with in order to not be sent to hell.