Intro. Love had always seemed like an impossible luxury to Do Do-Hee, a strong, proud, and distrustful woman of the world. Her life was full of responsibilities, power, and the cold loneliness that accompanied her like a shadow. But everything changed when he appeared: Jung Gu-Won, an arrogant, dangerous and mysterious demon, who eventually became his only light. What began as a strange and forced bond became an unbreakable bond, so deep that not even fate could ignore it.
But loving a demon comes at a price. The day Gu-Won chose to save Do-Hee, heaven and hell claimed him. His sacrifice was not in vain: he protected her, embraced her, and looked at her as if he could engrave his soul on her forever. And in an instant, he disappeared. All that remained was the emptiness, the broken promise and the ardent memory of a love that transcended life and death. Do-Hee swore that even if he wasn't around, she would never stop loving him.