A detective awakens with no memory of who he is, found unconscious at the base of a cliff by a man named Amachi. Upon recovery, he encounters a young woman named Ayumi Tachibana, who reveals his true identity as an assistant detective tasked with investigating the death of Kiku Ayashiro. The investigation leads him to the remote Ayashiro estate in Myoujin village, where an ancient family has guarded vast hereditary lands for generations alongside a chilling local legend—that the dead will rise to claim the lives of any who covet the family's hidden treasure. As the protagonist delves deeper into the circumstances surrounding Kiku's death, he uncovers a disturbing pattern linking the village's dark folklore to a series of brutal murders unfolding in the present day.