The New Hire is the Demon Lord

Centuries after her defeat, Dullahan—the fearsome demon lord who once plunged the world into terror—has finally been resurrected in modern-day South Korea. Driven by a singular desire for vengeance against the legendary hero who vanquished her, she begins searching for her ancient nemesis. Instead, she discovers his modern descendant: Yong-Rae Kim, a miserable and utterly incompetent office worker whose life is devoid of hope or happiness. Realizing that killing such a broken man would be an act of mercy rather than true revenge, Dullahan makes an unexpected decision to overhaul his pathetic existence first. However, transforming Yong-Rae’s life proves far more difficult than anticipated. His path to self-improvement is constantly obstructed by a deceitful girlfriend and a gauntlet of oppressive superiors at his workplace. To exact the deeply satisfying retribution she craves, the revived demon lord must dismantle the suffocating corporate hierarchy standing in her way. In doing so, Dullahan hopes to awaken the dormant heroic potential sleeping within Yong-Rae's bloodline, ensuring that when she finally strikes him down, he will actually be a worthy opponent.