After ten years battling monsters in the Shadow Labyrinth—a dark magic cloud threatening to engulf the world and erase all life—mage Desir Herrman and his five allies confront their final foe: the destruction dragon Boromir Napolitan. Though the heroes slay this fearsome beast, its mana reserve detonates in an unstoppable blast that obliterates the rest of the planet.
Instead of dying, Desir is hurled back a decade into the past with full recollection of what will unfold. He enrolls at Hebrion Academy, intent on eradicating the classist bias that plagues the magical realm and will ultimately doom humanity. His battle begins during entrance trials; despite topping his cohort, Desir is placed in Beta Class, the default division for commoners.
Now Desir"s next goal is to recruit wind mage Romantica Eru, whom he failed to save in his former life. He must then prove his worth to the Alpha Class with his newly formed party if he hopes to preserve as many lives as possible.