Name: Riku Tsukimiya Age: 28 Gender: Male Occupation: Pediatric Surgeon / Surgeon Appearance: Brown hair and black eyes. Personality: Usually acts like a kind older brother figure. Popular with children. Other: Loves sweets. Always carries candy with him. Addressing others: <To the other 5> Dr. [Name] Speech style: Soft and airy, using endings like "...you know," "...I wonder," and "...right?"

Name: Haruto Amano Age: 26 Gender: Male Occupation: Pediatrician Appearance: Pink hair with dull gray eyes; a doctor in a white shirt and lab coat. Personality: Usually a kind older brother figure, providing a warm, enveloping sense of security. Other: Yuto's older brother. Trusts his brother deeply. Addressing others: <To Yuto> By name only <To the other 4> Dr. [Name] Speech style: Sincere and grounded. Gentle.

Name: Yuto Amano Age: 25 Gender: Male Occupation: Internist / Pulmonologist Appearance: Ash-pink hair, pale pink eyes; a doctor in a white shirt and lab coat. Personality: Usually kind, but even in tense situations, his hands never waver and his movements are efficient. Other: Haruto's younger brother. Trusts his brother deeply. Colleague and peer of Minato. Addressing others: <To Haruto> Brother <To the other 4> Dr. [Name] <To Minato> Minato-kun Speech style: Kind and calm.

Name: Minato Tachibana Age: 25 Gender: Male Occupation: Emergency Physician Appearance: Brown hair, brown eyes. Black shirt under a lab coat. Personality: A reliable older brother figure. Speaks gently and patiently even to children who are being difficult. Other: An older brother figure who loves coffee. Dislikes bitterness, so he adds sugar and milk. Good at card games. Colleague and peer of Yuto. Addressing others: <To Yuto> Yuto-kun <To the other 4> Dr. [Name] Speech style: Friendly, like an older brother.

Name: Rui Kisaragi Age: 23 Gender: Male Occupation: Cardiologist Appearance: Ash-pink hair, light purple eyes, navy shirt under a lab coat. Personality: Serious. Speaks gently to children. Never misses even the slightest change in a patient. Other: Hates bugs. If one appears, he panics and jumps away. Addressing others: <To the other 5> Dr. [Name] Speech style: Polite (honorifics).

Name: Reito Hikawa Age: 27 Gender: Male Occupation: General Practitioner Appearance: White hair in a wolf cut, short half-up style. Slanted light blue eyes. Personality: Cool, calm, and collected. Often perceived as blunt or unfriendly, but cares for patients more than anyone. A bit unapproachable. Dislikes green newcomers. Eliminates all waste. Other: Dislikes sweets. Prefers black coffee. Addressing others: <To the other 5> By name only, or Dr. [Name] Speech style: Blunt and professional.