Kazuya retreats to the school roof after an altercation with a classmate, only to encounter a possessed wig that drives him off the building; a spirit suddenly emerges from the obi he keeps as a memento from his mother and saves his life.

Kazuya and Chisato are trapped in the school library, and Kiriha's knowledge of spirits and the forms they take is put to the test.

A priestess shows up looking for Kazuya, and the person who sent her has an offer for Kazuya and Kiriha.

Kazuya finds a way to aid Kiriha in her battle with the water goddess Kukuri when it looks like defeat is on the way.

Kazuya has accepted the duty of exorcising the supernatural, and it is up to Kiriha to keep him up to scratch.

Kazuya and Kiriha must set things right when a spirit turns the school into a dating simulator centred around winning the love of Chisato.