Matoi the Sacred Slayer—Ten years after her mother disappeared, Matoi Sumeragi moved in with her police officer father to live a quiet, normal life. But when Matoi's friend’s Yuma's family shrine is suddenly attacked by a demon, Yuma tries to invoke an old exorcism spell that doesn’t work. Instead, a mysterious crystal transforms Matoi into a powerful exorcist to defeat it. Unfortunately for Matoi, she will soon discover that when her mysterious powers run out, all of her clothes totally disappear.