Ayane, a girl from an elite all-girls school, was born as the daughter of a venerable shrine and was destined to become a miko immediately after graduation. The ritual of becoming a miko requires purification through bondage. With the help of her devout fiancé, Akira, Ayane, despite her confusion with her surroundings, gradually begins to develop a sense of awareness as a miko. Eventually, her sensuality increases, and she matures both physically and mentally.