It is revealed over the course of the game that Hanuda, which is a strongly isolationist community due to historical religious persecution, follows a unique syncretic faith known as the "Mana Religion" that incorporates many Christian and Shinto traditions. The senior figures of this faith, in particular the nun Hisako Yao, had attempted to call forth and appease their god through ritual human sacrifice of a girl named Miyako Kajiro who they considered holy for her psychic abilities. When Kyoya Suda, an outsider to the town who had arrived to investigate online ghost stories, accidentally stumbles on the ceremony Miyako, unwilling to be killed, uses the momentary distraction he provides to flee the scene and causes the ritual to fail. It is this failure that creates the disaster, pulling the entire town into another world where space and time are severely distorted.