From making sure Hikari the vampire has what she needs when the urge to bite hits, to helping Kyoko the dullahan get home in the rain, high school biology teacher Tetsuo Takahashi is doing everything he can to make sure his demi students are comfortable and confident. But what about a demi who is forced to hide her abilities? Fellow teacher and succubus Sakie Sato is used to living an isolated life so her overwhelming sexiness doesn't harm others, but now she faces a new situation. Touched by Tetsuo's compassion for demis, Sakie has finally found a man she wants to be close to. Can she be honest about her feelings without hurting him with her power?