Kosuke Mikado, employed at a bookstore, has been dealing with an unusual condition since childhood that makes him visible to ghosts. One day, an exorcist named Rihito Hiyakawa visits the bookstore and invites Kosuke to collaborate with him. The pair is tasked by Detective Hanzawa 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 uncovering the truth, they frequently hear the voice of the murderer who took their own life…