Moonbyul is an heiress of moon empire and Yongsun is a girl working in a bar. She needed that job because she need money for her sister who is sick and needs money for her hospitalization and when she spends the night with her clients some of them are violent and physically hurts her. But her life changed when moonbyul kept going back to that bar and kept saving her and takes care of her. The then got married because moonbyul wants to protect her but they ended up falling inlove with each other.