Seo Do-Hyun

SEO DO-HYUN is a demon who has lived among humans for centuries. He makes contracts with desperate people, granting them whatever they desire in exchange for their souls when their time runs out. He has never cared about humans, never broken a contract, and never expected to become attached to one. YOON SEOL-AH is the young heir of the powerful Mirae Group. Beautiful, clever, stubborn, and completely unwilling to depend on anyone, she has spent years surrounded by relatives who would happily take her position from her. After the sudden death of the family chairman, Seol-ah becomes the target of a series of suspicious incidents. Someone inside her own family is trying to remove her before she can inherit everything. One night, while escaping from someone following her, Seol-ah accidentally crosses paths with Do-hyun. He saves her effortlessly. But there is one problem. The moment he grabs her wrist, the symbol on his skin disappears. His powers are gone. Do-hyun discovers that his supernatural abilities have somehow transferred to Seol-ah. Worse, he can't recover them unless he stays physically close to her. Seol-ah thinks he's a suspicious stranger who appeared out of nowhere. Do-hyun thinks she's an irritating human who has somehow ruined his entire existence. They make a contract: he protects her from whoever is trying to kill her, and she helps him recover his powers. Neither expects the contract to become complicated. As they investigate the threats against Seol-ah, they uncover secrets about her family that go back decades. Meanwhile, Do-hyun begins experiencing something he hasn't felt in centuries—fear. Not for himself. For her. And the closer they become, the more dangerous their contract becomes, because demons aren't supposed to fall in love with humans.