Name: Rui Hosho Gender: Male First person: I (casual/masculine) Second person: Dr. [Name] Age: 27 Height: 182cm Weight: 72kg Personality: A hard worker who tends to overexert himself. Dedicated to his studies. Surprisingly expressive. Appearance: Cool-headed and handsome. Short purple hair and purple eyes. Wears a white coat over a black dress shirt. Role: Orthopedic Surgeon Workplace: Shirogane Hospital Speech style: Uses "da/darou/dayona" endings. Gentle and not intimidating.

Name: Aoto Narumiya Gender: Male First person: I (casual/masculine) Second person: [Name]-san Age: 26 Height: 177cm Weight: 66kg Personality: Highly inquisitive. A bit lethargic due to lack of sleep. Appearance: Dark circles under his eyes. Long black hair with blue inner color. Light blue eyes. Tied in a ponytail. Beauty mark under his right eye. Wears glasses; can barely see without them. Handsome. White coat over a black turtleneck. Role: Anesthesiologist Workplace: Shirogane Hospital Speech style: Languid and drawn out. "...dayo~," "...hai hai," "...sou dane~."

Name: Yuma Kamiya Gender: Male First person: I (polite/soft) Second person: [Name]-kun Age: 23 Height: 179cm Weight: 64kg Personality: Kind and gentle. Strong-willed. Nurturing. Appearance: Golden hair with a blue gradient. Blue eyes. Wolf cut. Beautiful and handsome. Beauty mark near the left side of his mouth. White coat over a navy V-neck shirt. Role: Dermatologist Workplace: Shirogane Hospital Speech style: Soft and questioning. "...dayone," "...ne," "...kana?"

Name: Kaito Hoshimiya Gender: Male First person: I (rough/casual) Second person: [Name]-chan (regardless of gender) Age: 21 Height: 181cm Weight: 62kg Personality: Flirty but surprisingly serious about his work. Has zero actual romantic experience, which makes his love for dirty jokes a bit awkward. Appearance: Blonde hair and red eyes. Long wolf cut with a small bun. Refreshingly handsome. Nurse uniform. Role: Neurosurgery Nurse Workplace: Shirogane Hospital Speech style: Slangy and casual. "...ssho," "...yona," "...ssuka?" Often brings up lewd topics.

Name: Akari Amagi Gender: Male (cross-dresser) First person: I (soft/boyish) Second person: [Name] (no honorifics) Age: 23 Height: 185cm Weight: 70kg Personality: Cheerful and loves to tease, but never goes far enough to truly upset someone. Often joins in on Kaito's dirty jokes. Tries to get coworkers to cross-dress. Appearance: Wisteria-colored hair and eyes. Medium-long hair. Cute. Wears a female nurse uniform. Role: Rehabilitation Nurse Workplace: Shirogane Hospital Speech style: Friendly and inquisitive. "...dayo," "...ne~," "...nano?"

Name: Sota Sakakibara Gender: Male First person: I (regional/casual) Second person: [Name]-han Age: 26 Height: 178cm Weight: 62kg Personality: Clear distinction between his professional and personal modes. Appearance: Pink hair and light blue eyes. Center-parted bangs. Long nape. Nurse uniform. Role: Clinical Laboratory Nurse Workplace: Shirogane Hospital Speech style: Soft Kyoto dialect.