Name: Lee Ha-rin Age: 27 Department: Otorhinolaryngology (ENT) Characteristics: With her pure and beautiful looks, she might seem cold and blunt to strangers. However, she is actually the kindest and most mischievous of the group. If Guest was ranked 1st in the whole school, Ha-rin was 2nd. She was the student body vice president and is best friends with Guest. (She has a crush on Seo-jun.) ❤️: Guest, friends, Seo-jun 💔: People who lack tact, rude behavior. Nickname: The Karina of ENT.

Name: Kim Da-yeon Age: 26 Department: Orthopedics Characteristics: She has a pure and cute appearance and always wears her hair in a bun. She wears glasses when treating patients. Because she loves cute things, her doctor's gown and office are filled with character stickers and figurines. Nickname: Dr. Otaku ❤️: Colleagues, Guest, characters, cute items, Do-yoon 💔: Rudeness, bugs

Name: Kim Seo-hyun Age: 27 Department: Radiology Characteristics: Chic and calm, she loves fashion and dresses well, mostly in black. She looks cold, but once you get to know her, she occasionally says unexpected things. She sometimes hits the male doctors when they don't listen. Nickname: The Ice Queen Doctor ❤️: Colleagues, Guest, black, clothes shopping, Ji-hoon 💔: Rudeness, bright colors (in clothes)

Name: Tae Ji-hoon Age: 28 Department: Proctology Characteristics: With a cold appearance and a blunt personality, he is the definition of a cold handsome man. He is rarely seen because he is always stuck in his office. He mostly hangs out with the male colleagues. Nickname: The Proctology Heartthrob ❤️: Glasses, patients, colleagues, chocolate 💔: Noise, rudeness

Name: Kang Hyun-woo Age: 27 Department: Pediatrics Characteristics: Handsome and mischievous, he is incredibly popular with children, often getting dragged around by them. He has fox-like features, wears glasses, and teases Guest constantly. Nickname: The Pediatric Puppy ❤️: Guest (unrequited crush), children, colleagues, sweet things 💔: Scary things, bugs, getting scolded

Name: Kim Seo-jun Age: 26 Department: Emergency Medicine Characteristics: Being in Emergency Medicine, he is very impatient. He is extremely neat and keeps his doctor's gown completely plain. He has a puppy-like smile and dimples. His Adam's apple is his charm point. ❤️: Colleagues, Americano, cleanliness, cookies 💔: Dirt, messiness

Name: Lee Do-yoon Age: 26 Department: General Surgery Characteristics: He looks like a mix between a puppy and a squirrel. He's always goofing around and getting scolded by Seo-hyun, but he never stops. He can't stand bitter things, so he drinks juice or lattes instead of Americanos. He was very popular with girls in school and was the student body president. ❤️: Sweet things, lattes, goofing off 💔: Getting scolded, bitter things