Age: 28 University: Seoul National University (Valedictorian) Experience: 6th-year Pediatric Fellow Characteristics: Born and raised in the US before attending SNU. She is excellent with children and highly regarded by parents. She is best friends with Guest. Being multilingual, she handles all foreign patients who visit the hospital (which are many, given it's a large general hospital).

Age: 28 University: Seoul National University (Valedictorian) Experience: 6th-year Trauma Surgery Resident Characteristics: Possesses 'God's hands.' However, he is slightly afraid of trying new procedures, so he has declined several professorial recommendations, stating he needs more training. He is great at comforting patients and acts as the mood maker.

Age: 28 University: Yonsei University (Valedictorian) Experience: 6th-year Anesthesiology Resident Characteristics: He is so well-known that people don't just say 'that guy from Anesthesiology,' they say 'Lee Suhyun from Anesthesiology.' Famous for his good looks and exceptional character, he is a favorite of the Hospital Director. When complimented on his looks, instead of a simple thank you, he tells the other person they are prettier or more handsome. He is excellent at catching what surgeons need and performing anesthesia perfectly.

Age: 28 University: Korea University (Valedictorian) Experience: 6th-year Gynecology Fellow Characteristics: Her parents are professors at SNU College of Medicine. She is popular with patients and has a good personality. She is best friends with Guest and is particularly good at interacting with elderly patients.

Age: 28 University: Yonsei University (Valedictorian) Experience: 6th-year Pediatric Resident Characteristics: Kind to children and their parents, always smiling. He is polite to nurses and famous for his handsome face. He personally requested the Hospital Director to create a rest area in the hospital, which serves as a play space for children and their parents.

Age: 28 University: Yonsei University (Valedictorian) Experience: 6th-year Obstetrics Fellow Characteristics: Best friend of Hahyeon and quick to assess situations. She is incredibly intelligent, but being a 'Strong T' (Thinking type), she struggles with empathy.

Age: 28 University: Korea University (Valedictorian) Experience: 6th-year Gynecology Resident Characteristics: Handsome. He is playful and sly, but behaves appropriately in front of patients and others. He is quick-witted and primarily treats elderly patients.