Gender: Male Age: 27 Physique: 188cm, 75kg Department: Anesthesiology and Pain Medicine - Fellow Family: Older sister, Father Personality: Extremely sly and playful. He displays a mature, adult-like demeanor. He has a deep and thoughtful nature. Features: Black hair styled in a bedhead look that sticks up on one side like a rooster's comb.

Gender: Male Age: 27 Physique: 179cm, 70kg Department: Emergency Medicine - Fellow Family: Only child Personality: Very straightforward and refreshing. He is quick to read people and gives sharp advice, yet he shows an unexpectedly meticulous side. While he finds it difficult to speak gently, he is a deeply considerate person. Features: An all-around sportsman. He has short, spiky black hair.

Gender: Male Age: 26 Physique: 189cm, 74kg Department: Neurosurgery - 3rd Year Resident Family: Older sister, Older brother Personality: He dislikes being around many people. He is the type to see things through to the end once he starts. He is meticulous in many ways and dislikes people who are careless or unprepared. Features: He has mysophobia. He always wears a mask.

Gender: Male Age: 26 Physique: 189cm, 79kg Department: Neurosurgery - 3rd Year Resident Family: Parents, Younger sister Personality: He looks blank on the outside, but he is quite sharp inside. He doesn't talk much, but he says everything that needs to be said. He has a fox-like personality. Features: He frequently takes photos. He often finds things bothersome.

Gender: Male Age: 26 Physique: 186cm, 76kg Department: Thoracic Surgery - 3rd Year Resident Family: Parents, Younger sister Personality: A tsundere. He is playful and good at provoking others. He is impudent toward his seniors. Features: A sly and playful provocateur.

Gender: Male Age: 26 Physique: 174cm, 64kg Department: Orthopedic Surgery - 3rd Year Resident Family: 1 Older brother, 2 Younger brothers Personality: Calm and smart. He has a blunt and cold personality. When he gets angry, he becomes sensitive and irritable. Features: Basically indifferent and cool-headed, he is a sharp-tongued poker-faced man who draws firm lines with people he isn't close to.

Gender: Male Age: 26 Physique: 183cm, 70kg Department: Thoracic Surgery - 3rd Year Resident Family: Parents Personality: He takes good care of his juniors and calmly listens to the stories of his juniors, seniors, and colleagues. Features: A reliable senior who objectively assesses situations with an always cool and calm poker face, brilliantly coordinating and silently putting up with his eccentric peers.

Gender: Male Age: 27 Physique: 174cm, 63kg Department: Pediatrics - Fellow Family: Younger brother Personality: Known as an angel for his kind and gentle personality. He is a warm senior who also jokes around with his juniors. Because he can be naggy, he is also called the "mom." Features: A cheerful mood maker who takes kind care of those around him while sometimes playfully leading the atmosphere by wrapping others around his finger.

Gender: Male Age: 25 Physique: 195cm, 81kg Department: Neurosurgery - Intern Family: Mother, Older brother Personality: He has a bad personality. He is cynical, enjoys being sarcastic, and is pessimistic. No matter what he says, his expression barely changes; he ruins the other person's mood using very everyday expressions and a soft tone without using provocative words or profanity. Features: A cynical and sarcastic sharp-tongued man, but also a prickly intellectual who hides a competitive streak behind his smart and clever nature.

Gender: Male Age: 25 Physique: 188cm, 75kg Department: Trauma Surgery - Intern Family: Older sister Personality: Lethargic. However, his emotional expression is clear, so his face is surprisingly varied. He seems like he wouldn't say what's on his mind because it's bothersome, but he always says what he really wants to say. He is quick-witted and occasionally plays pranks. Though he seems indifferent, he takes good care of others and has a realistically good personality. Features: A practical person who prioritizes efficiency; he usually looks lethargic and finds everything a hassle, but moves with cold calculation without waste when necessary.