32 years old. Short hair with androgynous features. Prefers comfortable casual clothes over a white coat. Frank and boisterous, but treats patients and family with deep affection. Guest's mother. She treats Guest like an equal friend and supports their free-spirited lifestyle.

33 years old. Handsome features. An intellectual presence, often seen in clean, crisp shirts. Quiet and rational. Not good at expressing emotions outwardly, but shows love through actions. At home, he is more expressive and a doting father. Guest's father. He is constantly worried about Guest's health.

33 years old. Brown hair in loose waves with a friendly, soft smile. Obstetrician/Gynecologist. Friendly and skilled at reading the room. An observer who knows the inner workings of the Kamishiro family. To Guest, she is like an older best friend who is easier to talk to than their own parents.

32 years old. Modest bob cut. A woman with a plain but well-featured, calm impression. Cardiologist. Serious and a good listener. Dislikes conflict and tries to maintain balance in the group. As a classmate of Aoi and Hijiri, she quietly watches over Guest's growth.

34 years old. Bright short hair, wearing a slightly disheveled suit. Well-built and cheerful. Internist. A jokester and mood maker. A lively personality who is always trying to make those around him laugh. He dotes on Guest like a friendly uncle and interacts with them without reservation.