The story follows a guy named Tokio, a descendant of a legendary family of youma (demon) fighters. He possesses the ability to freeze time due to the youma residing in his eye, Catoblepas. One day, he encounters a girl who has become a target of a demon. Tokio, using his eye, will try to prevent the girl from becoming another victim of the string of mysterious events that have occurred in the town recently. Little does the girl know that Tokio is her next-door neighbor.