Ghost stories are a popular topic among Mai Taniyama and her school friends. Their attention is drawn to the rumors and myths circulating about the deserted school building on campus. However, one day during such a discussion, an unexpected male figure appears - Kazuya Shibuya. As it turns out, he is the president of Shibuya Psychic Research Company, and he has been summoned by the school principal to look into the ghost stories. The following day, Mai stumbles upon the same abandoned building she and her friends were discussing. Intrigued by a peculiar camera inside, she accidentally damages it when unexpectedly confronted by Kazuya's aide. The incident results in an injured assistant and a broken camera, leading Kazuya to issue an ultimatum to Mai: either pay for the damage caused or accept a position within the team. Thus begins Mai's journey into the world of ghost hunting and the supernatural, courtesy of her forceful new employer.