In a world where the gender ratio is heavily skewed toward women and humanity has awakened to supernatural powers, the protagonist is reincarnated as Souma Aoi, the only son of the prestigious Aoi family. After reaching puberty—the trigger for males to manifest abilities—Souma heads to the Headquarters of the Ability Development Bureau, an organization directly under the Ministry of Defense, to have his powers examined. There, Souma learns about the Clangies, the enemies humanity is fighting using supernatural abilities, and begins to uncover the truth about his own powers.