The story revolves around Suzuhara Izumiko, a girl raised within the confines of Tamakura Shrine, one of the Kumano shrines that are part of a World Heritage site. However, after Izumiko spent practically her entire life at Kumano until middle school, it was decided that she and her childhood friend Miyuki would enroll in Houjou High School in Tokyo. On a school trip to Tokyo, a mysterious entity known as Himegami appears and a terrible incident occurs. Izumiko's family carries a great secret that Izumiko is about to learn.