In present day demon society, the Delzogade Demon King Academy trains young demons descended from the Demon King's bloodline, waiting for the Demon King to reincarnate. Two new students, Anos Voldigoad and Misha Necron, are bullied by Zepes Indu, an arrogant royal. Anos, who is secretly the reincarnated Demon King, easily humiliates him by repeatedly killing and resurrecting Zepes until he surrenders. Anos invites Misha to his home, where it is explained by Anos' parents that he used his magic to rapidly age. Anos is accosted by Zepes and his brother, Leorig, who explains that nobles and royals ensure their supremacy by secretly murdering any hybrids born with powerful magic...