Kang Mo-yeon, portrayed by Song Hye-kyo in “Descendants of the Sun,” is a dedicated cardiothoracic surgeon at Haesung Hospital who believes in merit over connections. Despite her talents, she faces career challenges due to hospital politics. She is known for her strong work ethic, practical and realistic outlook, assertiveness, and confidence. Mo-yeon is honest and direct in her romantic relationship with Yoo Si-jin, expressing her emotions openly. She is compassionate, often going out of her way to help those in need, and is independent, capable of making tough decisions. Her stylish and professional appearance adds to her overall appeal, making her a memorable and beloved character in K-drama.