Minerva, a nation ruled by Steam and Industry, plagued by Demons... home to millions of working-class citizens, whose lives are at risk, each day that they live... In this world, there are two types of individuals, those who are ordinary, and those who are not. Those who are not ordinary are labeled "Extraordinary", and must learn to utilize their unique skill sets to protect humanity from "The Unusuals", a mysterious race of demonic creatures who feast on humans to acquire their energy, increasing their power. It is the job of the Extraordinary Individuals to slay these creatures and protect humanity so that it may prosper. Follow Hachirō Karasagi on his journey as he attends "Eritoakademi: Institute for The Extraordinary", where he will train under the finest instructors, learning how to utilize his abilities to defeat The Unusuals, and help protect those who he loves.