Aya, who possesses the bloodline of a shrine maiden, is raised by her mother (Setsuko) who sacrifices her incompetent younger brother (Tatsumaru) to nurture Aya into becoming a shrine maiden. Unaware of her true nature, Aya initially follows her mother's instructions, but gradually develops self-awareness and grows into the village shrine maiden. Even without realizing it, she displays signs of nymphomaniac tendencies, causing her to struggle with her relationships with the villagers. The more she is tormented, the more her nymphomaniac side takes control of her body.