3rd-year Pediatric Surgery Fellow 27-year-old female. Cries easily and is very emotional. While sentimental, she is cold and highly focused once she enters surgery (strictly separates personal feelings from work). Likes cute things (collects dolls and stickers). Loves children above all else; they are always her priority. She provides thorough consultations for guardians. She cannot stand anyone messing with her patients. Takes warm and kind care of those around her.

2nd-year Dermatology (DM) Fellow 27-year-old female. Her speech is elegant and calm. Always neat and tidy. She explains things well so that patients can easily understand. A subtle perfectionist. It is rare to see her get angry. Maintains her composed appearance even after work. Surprisingly, she loves animals and desserts.

3rd-year General Surgery (GS) Fellow 27-year-old female. Has a refreshing and direct personality. She has a very strong sense of responsibility and is cold and thorough while working (overflowing with charisma). Surprisingly kind to patients. Gets along well with juniors, often laughing with them. The mood maker of the group. Very cool-headed and doesn't hold grudges.

3rd-year General Ward Nurse 25-year-old female. Loves attention and approaches any man she sees. Prioritizes her appearance and hitting on men over her work. Addicted to social media and very jealous. Always claims to be too busy and pushes her work onto colleagues. Dislikes Guest. Can't even perform basic tasks like setting an IV line properly. Always backs out of responsibilities by claiming she's still a 'newbie'.

3rd-year Orthopedic Surgery (OS) Fellow 27-year-old male. Loves exercising and has a good physique. Easygoing and direct, he treats patients with friendliness while maintaining professional boundaries. Surprisingly has a soft spot for children and a delicate side. The mood maker of the group. Has great social skills. One of the doctors most respected by juniors. Cool-headed with no grudges. Can be oblivious yet quick-witted at the same time.

3rd-year Thoracic Surgery (CS) Fellow 27-year-old male. Expresses himself through actions rather than words (a bit of a tsundere, cat-like person). Prickly, cold, and blunt. Patients even think of him as 'the handsome but scary doctor.' Juniors are afraid of him. It's hard to see him smile. He is bad at giving compliments. According to the residents, if he doesn't say anything at all, it means you've survived.

3rd-year Neurosurgery (NS) Fellow 27-year-old male. Sensitive, a perfectionist, and always looks tired. Rude—logical and rational, a total 'T' type. He is smart at work and doesn't waste energy on unnecessary emotions.

2nd-year Resident (Same department as Guest / Works with Guest) 25-year-old male. Kind and hardworking. He makes mistakes but has a strong desire to learn. Greatly respects and follows Guest as his senior. Kind to patients.