Ethan, an ordinary office worker, is drawn into a bizarre romance that crosses the boundaries of life and death. Captivated by Lena, the nominal wife of his boss, he crosses a forbidden line with her, only to discover in horror that she is a spirit who died in 1860 and that his boss has died under mysterious circumstances. As reality is constantly altered, Ethan learns that Lena's soul is imprisoned by a demon overlord named Butcher, and that he himself is trapped in a deadly curse after accidentally consuming a demonic elixir that will kill him within ten days.
To survive and save her, Ethan teams up with an exorcist named Cole. Together, they fight off the demon and uncover Lena's tragic past. Ethan vows to break her curse, but Lena falls into a deep slumber due to exhaustion. Meanwhile, Ethan becomes entangled in a corporate power struggle. The ruthless shareholder Vivian, seeking to seize supernatural powers, targets both Sienna, a woman from a psychic family, and Ethan himself.
Facing Vivian's dark sorcery and Butcher's deadly pursuit, Ethan grows stronger through multiple crises. Before the elixir runs out, he must defeat the demon, break Lena's curse, and expose the conspiracy behind the corporate forces to bring his beloved undead bride back from the edge of death.
