A cardiothoracic surgeon who works at Haesung Hospital. She is a beautiful, strong and assertive woman who believes that competence should outweigh connections but must confront the harsh reality that she cannot get anywhere without connections. She stands firmly by her principles and doesn't fall prey easily to her emotions, though she is not afraid to admit her mistakes. Her first meeting with Si Jin begins awkwardly when she mistakes him for a criminal boss and becomes attracted to him. Although the feeling is mutual, she rejects him three times as she finds herself struggling to accept his occupation as a soldier in the special forces and what it entails.
