The year is 2050. The United Nations has created the SDC (Scavenger Control Division) to combat rogue scavengers with superpowers. Fujita Enkai, a 15-year-old boy, is a skilled member of the SDC- and is assigned an undercover mission to attend the all-girls academy to monitor potential threats and gather intelligence on rogue scavengers. He struggles to blend in as the only male student while keeping his identity as an SDC member a secret but the only person who knows about this "Secret Mission" is his mother who is the principal of the school.