Touko Tsukishiro inherited the power of the "Nightblade Eye," which allows her see and exterminate evil spirits. She helps out at her grandmother's antique store "Janomeya" by conducting exorcism rituals. Touko travels to the island of Mizuhai, to investigate a case where "the chief priest of the shrine has not woken up for a month," and she is surprised by the beauty of the sleeping priest they call "Kiyora-sama"...?

(Source: Shueisha, translated)