Suzuna Kuraki is a beautiful young woman apprenticing to become a priestess of her wealthy, matrilineal family’s Shinto faith. As part of her initiation, she must not only practice consecration, but also enter an arranged marriage by her grandmother and subsequently participate in the decadal Tsukimachi ceremony, an esoteric ritual held to welcome a new female minister. However, things starts to get complicated when her fiance, Koichi Hayama, is brought to her estate and a mysterious paranormal energy begins making her act somewhat strangely.