Mio, a high school girl raised in a family of sorcerers who exorcise evil spirits, is forbidden from leaving her hometown of Nagano, but secretly goes to Kyoto without telling her family. There, she is attacked by an evil spirit but is rescued by a high school student named Takara, who for some reason already knows Mio... A magical fantasy in which a thousand-year-old curse and destiny intertwine! (Source: Kadokawa, translated)