Special abilities occur among a small percentage of boys and girls in puberty. Yū Otosaka uses his power without others knowing, and lives a fairly normal, average school life. Before him suddenly appears a girl, Nao Tomori. Due to his meeting with her, the fate of special power-users will be exposed.

Very few adolescent boys and girls have an onset of special abilities. Yuu Otosaka uses his ability unbeknownst to others in order to lead a satisfying school life. And then, a girl named Nao Tomori suddenly appears before him. Their encounter reveals the destiny for wielders of special abilities.