Mizuki Konoe usually leads a normal student life. However, her other identity was an exorcist who exorcised demons.
Her name is Charlotte Catherine Clouet. After school, a group of male students in the same class hear rumors of demons that invade the ruins of a factory. Worried, she chased after them, but there was still a demon lurking there.
Mizuki, who tried to protect the boys, was cursed by the demon Melkis and become weak. On top of that, she is also targeted by male students and evil spirits whose lust has been released Still, in order to save the boys, Mizuki pushes forward to fight against Melkis…