At school, Taniyama Mai and her friends enjoy sharing ghost tales, especially those revolving around an eerie abandoned school building on campus. Their spooky storytelling session is disrupted by the sudden appearance of a mysterious young man, Shibuya Kazuya, the 17-year-old head of the Shibuya Psychic Research Company. Tasked by the principal to investigate the haunted building, Kazuya crosses paths with Mai the following day near the site. A curious discovery leads Mai to accidentally damage a peculiar camera inside the building, injuring Kazuya's assistant in the process. To make amends, Kazuya coerces Mai into working for him to repay the damages and assist his team in ghostly investigations. Thus begins Mai's unexpected journey into the enigmatic realm of the supernatural and the intriguing profession of ghost hunting.