The supreme Demon King, who once destroyed stars with a wave of her hand, is slain by the Hero and unexpectedly reincarnates as a penniless, black-haired beauty. In this seemingly peaceful world, she discovers that the greatest threat is not the demons returning for revenge, but the modern corporate system at the Adventurers’ Guild: penalties for clocking in late, KPI evaluations for quests, and disability insurance for dragon slaying.
To pay rent and put food on the table, the former Demon King, Wiz, has no choice but to pick up a beginner’s sword and team up with El, a genuine Hero who’s almost foolishly sunny. Relying on her Demon King mindset of “industrialized monster dismantling” and “maximizing cost-effectiveness,” she struggles to survive an adventurer’s life full of cutthroat competition and workplace traps. Along the way, she gradually comes to understand the meaning of protecting an ordinary, peaceful life, after having once been a loner bent on destroying everything.