Based on the AO3 Fanfic "This Color Ain't It". As a 14-year-old boy, Kenji Miyazawa is the ADA's naive detective given his possibly most difficult task to date: infiltrate UA and find the student spy before the heroes become aware that there is a traitor amongst them. In the MHA and BSD universes, Ability users and Quirks exist as Ability users are rare and seen as dangerous despite Ability users being friendly, but because the world is overrun by quirks, there is racism towards abilities.