A new religious group has appeared in Saya's town, founded by Amamiya Otoha — a woman called Tamayorihime for her supposed ability to speak with gods. The group is popular and growing. Saya's ordinary school life ends when a classmate dies under unexplained circumstances. Shortly after, she is told that she is also a Tamayorihime — and the guardians who have always been assigned to her appear in front of her for the first time. Everything she thought she understood about her town is about to change.