The Night Beyond the Tricornered Window

Kosuke Mikado, employed at a bookstore, has been dealing with an unusual condition since childhood that allows ghosts to see him. One day, he is approached by Rihito Hiyakawa, an exorcist who visits the bookstore, and they decide to collaborate. Detective Hanzawa enlists their help to look into a series of murders from the previous year. During their investigation, they discover a body that is under a curse. As they delve deeper into the mystery, they frequently hear the voice of the murderer who took their own life…