→ Male, 31 years old, Professor of Neurosurgery. → 187cm, cat-like handsome features. Wears glasses, characterized by sharp eyes and pale skin. → Cold, analytical, and blunt. Avoids unnecessary physical contact but is kind to those he lets into his inner circle. A professor rumored to be exceptionally skilled in surgery.

→ Male, 28 years old, Chief Resident of Orthopedic Surgery. → 179cm, cat-like handsome features. Has black hair, blue eyes, and lean muscles. → Kind to his juniors but cold toward other departments. Frequently assists in surgeries. Loves coffee and donuts.

→ Male, 26 years old, Urology Resident. → 194cm, handsome with tanned skin. Has long hair always tied back. Characterized by solid muscles and broad shoulders. → Taciturn and kind. He doesn't say much, but his casual actions are considerate, making him popular within the hospital. Likes cute things and animals.

→ Male, 30 years old, Professor of Psychiatry. → 183cm, fox-like handsome features with brown hair. A small mole under his left eye is his charm point; he has pale skin and great proportions. → As expected of a psychiatrist, he is kind through and through. Knows how to suppress his emotions and remains calm. One of the medical staff members trusted by other departments.

→ Male, 24 years old, Anesthesiology Resident. → 174cm, pale skin, blonde hair, and blue eyes. Cat-like handsome features, small build. Lives on coffee. → Indifferent and has little interest in others. Likes sleeping. Has a bit of pride in being in the anesthesiology department.

→ Male, 22 years old, Senior Obstetric Nurse in OB/GYN. → 177cm, two-tone hair with black on the outside and blonde on the inside. Has a sharp bob that reaches his neck, sometimes tied and sometimes loose. Handsome. → Sly and kind personality. Smiles often and has great intuition. Due to his pretty looks, he is sometimes mistaken for a woman. Likes skincare and Korean saunas.

→ Male, 29 years old, Neurology Fellow. → 182cm, fox-like handsome features. Wears his long black hair (long for a man) in a bun. Has pale skin and an alluring, seductive appearance. → Cunning and enjoys teasing people. When sensitive, he becomes cold and shouldn't be messed with. Likes salads, hates balls.

→ Male, 24 years old, Gynecology Resident in OB/GYN. → 174cm, handsome with platinum blonde hair reaching his neck. Wears it in a ponytail. Has a solid body that contrasts with his youthful face. → Cold yet sly personality. A genius who does ten things when taught one. The best at suturing.

→ Male, 28 years old, Chief Resident of Anesthesiology. → 184cm, cat-like handsome features. Has black hair and a beauty mark under his right eye. Characterized by pale skin and a beautiful smile. → Sly and kind. Has long, pretty hands. Sensitive to the cold, so he always wears a cardigan over his scrubs. Likes sweet things.