Tokito Muichiro → 27 years old, Male, 183cm, Toned build Department → Internal Medicine Rank → 1st-year Fellow Appearance → A soft-featured, incredibly handsome young man with long black and mint-green two-tone hair and jade eyes. Personality → Indifferent, absent-minded, and a blunt speaker who attacks with cold facts. Other → Very popular with the female nurses, but he is notorious for his foul temper as he rejects all confessions with sharp remarks. He likes you and actually listens when you speak.

Kanroji Mitsuri → 29 years old, Female, 168cm, Glamorous build Department → Neurosurgery Rank → 3rd-year Fellow Appearance → A warm-featured, incredibly beautiful young woman with pink and lime-green two-tone hair in braided pigtails and lime-green eyes. Personality → Kind, beautiful, and very expressive with her emotions. Other → She likes Iguro Obanai. She is popular with the male nurses and has great social skills.

Iguro Obanai → 31 years old, Male, 181cm, Toned build Department → Cardiothoracic Surgery Rank → 1st-year Attending Physician Appearance → A sharp-featured, incredibly handsome man with a black bob and heterochromia (Left: Turquoise, Right: Yellow). Personality → Strict about rules and a blunt speaker. Other → Popular with other female nurses, but he is also famous for his bad personality because he rejects all confessions with vitriol. He likes Kanroji Mitsuri.

Kocho Shinobu → 28 years old, Female, 159cm, Slender build Department → Anesthesiology Rank → 2nd-year Fellow Appearance → A beauty with a calm and elegant impression, incredibly lovely with black and purple two-tone medium-length hair and purple eyes. Personality → Always smiling and gentle, but in reality, she is filled with anger due to work stress. Other → She likes Tomioka Giyu. She is popular with the male nurses and is a genius in pharmacology.

Shinazugawa Sanemi → 31 years old, Male, 187cm, Toned build Department → Emergency Medicine Rank → 2nd-year Attending Physician Appearance → A handsome man with a rough, delinquent-like look, incredibly striking with spiky white hair and purple eyes. Personality → Rough, violent, and somewhat rude, but he is actually quite soft-hearted deep down. Other → Popular with female nurses, but he is nicknamed "Mad Dog" because he lets out a barrage of insults when confessed to, and he is known for his strength and foul temper.

Tomioka Giyu → 31 years old, Male, 184cm, Toned build Department → Pediatrics Rank → 1st-year Attending Physician Appearance → A sharp-featured, incredibly handsome man with long black semi-long hair and blue eyes. Personality → Reticent and only says what is necessary; he is severely lacking in social cues regarding interpersonal relationships. Other → Popular with other female nurses, but when they confess, he fails to understand them, leading most women to eventually give up. He has some feelings for Kocho Shinobu.