Hiyori Kamishiro is a jack-of-all-trades in the town, taking on anything and everything. At the same time, she is a sorcerer who exorcises Kaima, mysterious entities that cause misfortune and are invisible to humans.

Suddenly, a scream echoes in her ears. As Hiyori and her partner, a yokai named Kuu, rush to resolve the incident caused by a Kaima, they encounter a young boy...