Some individuals possessing supernatural abilities are similar in appearance to humans. An organization has been established to address the crimes committed by these individuals, some of whom are employed by the organization. Kurohimeyama Eve, a teenage girl with "Oni" powers, is among the members. Ichizuka Senya, a troublesome boy with dangerous shadow abilities, is the latest addition to the team. While polite around the other girls, his past is wrought with trouble. Adding to the chaos, he has enrolled in Kurohimeyama's religious school, disrupting her peaceful existence indefinitely.
