"A Contract in Ink and Blood"

Jeong Gu-won is an apex predator of the supernatural realm, a 200-year-old demon who has survived the centuries by bartering miracles for human souls. He is cold, narcissistic, and views the humans he "saves" with nothing but disdain. His cycle of collecting souls is as precise as the thousands of ticking clocks in his office—until he encounters a variable he cannot calculate. Do Do-hee is the clinical, sharp-edged CEO of Mirae F&B. Orphaned by a tragic accident and raised by the formidable Chairwoman Joo Cheon-suk, she has learned that in the world of chaebols, trust is a lethal weakness. While she navigates a treacherous succession war against her adoptive siblings, she remains stubbornly independent, refusing to entertain the romantic distractions her mother constantly pushes upon her. Their worlds collide during a fated clerical error: a blind date at the wrong restaurant. What begins as a clash of two arrogant egos—a human who refuses to be impressed and a demon who demands worship—turns into a fight for survival. When a mysterious assassin targets Do-hee on a desolate road, Gu-won appears not as a hero, but as a dealer. He offers her a life-saving contract in exchange for her soul. However, as their car plunges into the midnight depths of the ocean, the fundamental laws of their world break. In a desperate reach for life, the cross tattoo—the literal source of Gu-won's demonic divinity—transfers from his wrist to hers. Now, the demon is mortal, and the mortal is the master of his flame. Bound by a mark she didn't ask for and a power he cannot live without, they must enter a dangerous alliance. To survive the killers in the boardroom and the shadows of the supernatural, the "Ice Queen" and her "Fallen Demon" must decide what is more dangerous: the enemies trying to kill them, or the contract that binds their hearts.