An infamous villainess finds herself transmigrated into the body of a girl named Hailey, who is destined to die in one year. She’s thrown into a cursed valley, but instead of succumbing to her fate, she survives by using Hailey’s latent genius to purify corrupted magic and save people from a zombie curse. Despite her fearsome reputation as the “Demonic Marchioness,” people are drawn to her for protection, leaving her confused as to why they aren’t afraid.
When Sahui’s quiet life at Yeonghwadang, a secluded shaman house where she spent her whole life, is disrupted by imposing CEO Tae-eon Jeong, she wants nothing more than to keep her distance. Scarred by abandonment and a childhood accident, she has no interest in love. Yet Tae-eon’s arrogance, charm, and relentless attention begin to break through her defenses, stirring emotions she thought she had buried for good.