The student council at Hoshinoumi Academy has an unusual responsibility: locating adolescents who misuse supernatural powers and finding new ability users to protect from harm. Yuu Otosaka becomes a reluctant member after its headstrong president, Nao Tomori, exposes his cheating and pressures him to transfer to the academy.
Yuu can take control of another person's mind and body for just five seconds at a time. He has used that brief window to secure top grades and admission to a prestigious high school, continuing his dishonest behavior until Nao intervenes. His new school, by contrast, was secretly established for teenagers with supernatural abilities.
Now obliged to help with council work, Yuu joins the search for others with powers. The group's investigations draw them into matters far more complicated than they anticipated.