When she was still just a girl, Kotoko was kidnapped by the spirits that asked her to become a mediator between the two worlds, as well as the Goddess of Wisdom for these spirits. However, power always comes with a price: an eye and a leg. Now, years later, watching out for dangerous spirits, helping the good spirits, Kotoko meets a mysterious young man named Kurou and immediately takes an interest in him. How can spirits be afraid of a single human and what secrets does Kurou hide?