In Notsu, Oita Prefecture, there are many people with supernatural powers. High school student Yoshio Kamogawa (Shota Sometani) is one of them and can read other people's minds. Yoshio uses his powers for trivial reasons.

Manami suddenly encounters mass murder at a pub on her 22nd birthday as she is hunted down by two warring vampire clans, the Draculas and the Corvins. Manami is a child of prophecy who is meant to help the Draculas overcome their Corvin enemies who have driven them underground. Meanwhile, droves of young men and women are gathered at the Hotel Requiem by a Corvin named Yamada who informs them that the world is about to end, with this hotel being the only refuge.

The body of a person who died an unnatural death is discovered encased in mortar like concrete in the basement of an abandoned building. Why was the person murdered this way? The next day, the investigation task force receives a phone call from the criminal who calls himself Tremi during a meeting to discuss the investigation of the case. Then, in a short time after her transfer to the First Investigative Division, Kisaragi Toko becomes the negotiator. Tremi mocks and provokes the police while offering hints regarding the murder. A second murder soon occurs just as Tremi had warned. The victim's head has been covered with concrete as they had expected. What is the criminal's motive and why is the criminal fixated with concrete? The criminal's surprising actual target soon emerges...

Fujisaki Aya is a young college student whose family is 150 million yen in debt after her father's corporation went bankrupt. To earn the money, she enters the Hostess Grand Prix.