Kim Sunoo, acted as an ordinary nurse who hid his real identity as the well-respected and business-minded doctor of all Yale Hospital around the world. He ended his 3-year-marriage with his ex-wife who thinks he is just a freeloader and poor. But what seems to be a fall turned into a path toward success, a CEO of Yonsei Hospital (who runs as the distributor of Yale's equipment and apparatus needed for the Hospital) pulls him into a flash marriage. His life as a respected doctor and a feared hero begins, bringing his name into glory and leaving his ex-wife in never-ending regret