Darling, Is It All Coincidence

Hayun has liked Jun-hyeok since their school days and has never told him. Lee Jun-hyeok is an heir in one of the chaebol families and has a name among Seoul's rich for how he goes through women. They cross paths while she is working a part-time job, in the middle of customers giving her trouble, and he does not know any of the history. Her family's money is gone and her younger sister is seriously ill, with treatment nobody in the household can pay for. Hayun offers Jun-hyeok her first night for the price of the hospital bills, and he takes it. He reads her as a woman trading on her face for cash. After that night he wants the arrangement to continue and keeps offering money to hold her in place. She tells him it was one night and stays with that. He goes on wanting her without getting her, and once he finds out who she is and how long she has been carrying it, he stops being willing to let her walk off.