The story is set in a world where supernatural powers exist through science, and magic exists through religion. ‘University City.’ 2.3 million inhabitants. 80% of the students are active in the ‘Brain Development Program’ and out of those only 7 are Level 5s. Meet the civilian protagonist Mikoto and her friend Kuroko, maintainers of peace and order at the University district, as members of the 'Judgment'. The side story of To Aru no Index