Private Misono Gakuen. There was one strange gossip in this school.

It's about a female student with no particular behavioral problems who suddenly becomes sexually promiscuous one day, causing problems both inside and outside the school.

This gossip was called "Kaori-possession" in analogy to the name of the victim of an incident that also caused the school to become co-ed.

Eyebrow-raising and inappropriate obscene stories to the extent that they are exchanged among a very small number of students. It was supposed to be a silly story that every school has one of.

However, ---- the evil spirit of Kaori possession was indeed real.

Student, Toshiki Mitsui, has a smooth sailing life with his girlfriend, Shiina Tokimori. He is chosen as the target of an evil spirit, Kaori Makishiro.

What Kaori wants is the breakup of the happy lovers. She begins to act to distort the fullness of her smile into anguish and suspicion.

Will Toshiki be able to shake off the dark impulses that have grown in him and reclaim Shiina in his hands?

And - how did a beautiful girl, who once prided herself on being happier than anyone else, fall into an evil demon?

Now, the curtain opens on a bizarre tale of desire and love and hate swirling around...