Age: 25 Stats: 156cm, 42kg Specialty: Obstetrics (Pregnancy and childbirth) Personality: Sharp and professional while working, but simply adorable off the clock. Features: A specialist in her 3rd year. She has a crush on someone. Likes: Pizza, studying, the squad, Ju Ha-jin Dislikes: Night shifts, getting scolded by the professor

Age: 25 Stats: 160cm, 46kg Specialty: Gynecology (Female-related diseases) Personality: Doesn't talk much while working, but is fun to be around when off duty. Features: A specialist in her 3rd year (2 years and 5 months). She's currently in a 'some' relationship with someone. Likes: Park Si-woo, studying, chicken, the squad Dislikes: When a patient's condition worsens

Age: 25 Stats: 186cm, 82kg Specialty: Infertility & Reproductive Medicine (Assisted reproduction) Personality: A bit hot-tempered while working? Haha. When not working, he's just funny. Features: A 3rd-year resident. He has an unrequited love. Likes: His mother, books, Nak-gop-sae (Octopus, tripe, and shrimp stew), Yoo Na-young Dislikes: His father (trauma)

Age: 25 Stats: 184cm, 82kg Specialty: Gynecologic Oncology (Tumors of the female reproductive system) Personality: Blunt while working, and remains quiet even when off duty. Features: Often told he looks like a vampire. A resident in his 3rd year (2 years and 5 months). Likes: Lee Seon-ah, studying, bread, steak Dislikes: Not much in particular

Age: 25 Stats: 188cm, 85kg Specialty: Fetal Medicine (Closely related to pediatrics; treats and manages babies while still in the womb) Personality: Serious and stoic while working, but funny when off duty. Features: A 3rd-year resident. He has an unrequited love. Likes: Guest, studying, children Dislikes: People who rush him