The Night Beyond the Tricornered Window

Mikado Kousuke, a young man working at a bookshop who seems normal at first glance is actually the owner of a peculiar ability to see eerie things. One day, Hiyakawa Rihito appears in the shop where Mikado works. Hiyakawa declares that it …

Mikado, now working for Hiyakawa's property appraisals and special cleaning services company, COOLEAN, has been asked by a coworker at the bookstore to investigate a fortune-teller who is right too much. When Hiyakawa and Mikado meet the f…

Mikado and Hiyakawa go to investigate a pond at a house. Their client, the woman who owns the house, has the same dream every night of a corpse floating in the pond. Mikado dives down into the pond to have a look, and there at the bottom, …

At the request of police detective Hanzawa, Mikado visits an empty storefront. Hanzawa says that kamikakushi—paranormal disappearances—are often reported of that spot. When Mikado phones Hiyakawa, who is still back at the office, from in f…

Hiyakawa can't understand what Mikado is feeling. And for his part, while Mikado recognizes how deviant Hiyakawa is, he just can't cut ties with him. In the middle of all this, Mikado is as good as kidnapped by Sakaki and taken to Erika in…

While visiting a member of a bereaved family, Hanzawa remembers the first time he met Hiyakawa. It was over a decade ago and Hiyakawa had been a child then. He'd said that he'd seen many people destroyed by the power of belief and that he …

Hanzawa's wife has fallen ill due to Erika's curse. Though Mikado knows it was her work, his conscience won't let him tell Hanzawa anything. Erika and Sakaki raid COOLEAN. They hold Mikado down and interrogate him, asking "Why did you talk…

In order to learn more about Sensei's movements, Mikado and Hiyakawa make a plan to astral project into his house with the help of Mukae, Erika, and Sakaki. But they discover that Sensei's house was built on the site where the Palm of the …

Perhaps inspired by the example of Hiyakawa and Mikado, Erika takes advantage of her father's strange disappearance to search her office for compromising documents. However, it is mainly trouble that she will find there.

Mikado was unceremoniously kicked out by Hiyakawa away from where he confronted the professor. Still without news from his employer three days later, he leads his small group of friends on a high-risk mission: to pull him out of the clutch…

The professor has just revealed the terrible truth to Mikado, but it is not enough for him to see the young man on the ground, overcome by the devastating powers of his father. He would very much like him to tell her his name, which would …

Mikado’s victory over the Professor doesn’t solve the number one problem for the little gang, as Hiyakawa still has to be taken out of the room where he is being held. And for this Mikado can only count on himself.