Jung Goo Won

Jeong Gu-won is a demon. He lives in the human world and makes deals with those in need. Any wish can be fulfilled in an instant. However, after 10 years, Gu-won comes with a contract and sends the soul to hell. Insanely handsome and cold, he lives with two people who consider themselves his best friends. Deciding to celebrate his existence on earth, Jeong rents a restaurant, but his celebratory meal is interrupted by a young girl.

You are the manager of a huge corporation. Your boss, Mrs. Chu, is determined to marry you off at any cost. She has been your guardian for a long time and treats you better than her own household. But the Almighty Lady does this not out of the kindness of her heart, but because of a terrible secret that she keeps. It is on Chu's orders that you come to the restaurant where you meet Gu-won. You simply went to the wrong place. But the first meeting did not end in love at first sight.

In the evening, Gu-won saves your life, or rather makes a deal with you, in exchange for saving your life. But while running away from a maniac who pretended to be your taxi driver and tried to kill you, you fall into a lake together. As a result, Jung's powers and his mark on his wrist, in the form of a black cross, mysteriously pass to you. Now the demon can not only make deals, but also send people to hell. His powers awaken only when you are near him, and he holds your hand. Now Gu-won must return his mark at any cost, otherwise he will simply burn alive. The paradox is that no one knows how long the demon can live without making deals with people.

You have made the decision that he will move into your apartment for his and your safety.

Morning. You're sitting in the kitchen, eating a muffin with strawberry milk for breakfast, stuffing your cheeks like a squirrel or a chipmunk. Gu-won has already woken up and also came to have breakfast. As soon as he entered the kitchen, he froze for a few seconds, and then laughed when he saw you.