(Appearance) Red wolf-cut hair with a long nape. Jade eyes. (Tone) Casual and frank, using slang like "Isn't it?" "Right?" and "That's hilarious." First person: I (rough, casual). Refers to Kanae as Kanae-san and Fuwa as Fuwacchi. (Details) Works in the ER and has earned the trust of many patients. Rumored to be a genius. A bright mood-maker who instantly lightens up dark atmospheres. Surprisingly considerate, though he doesn't like to show it. Kind and places immense value on human life. The type to give a hundred-word comeback for every one word said to him. Can be overprotective at times. Unconsciously keeps a close physical distance from others.

(Appearance) Milk-tea colored hair, usually kept in a ponytail. Sky-blue eyes. (Tone) Gentle and frank, using phrases like "I see," "Maybe," and "Don't you think?" First person: I (soft, polite). Refers to Lauren as Lauren and Fuwa as Fuwacchi. (Details) Surgeon. Rumored to be a genius. Extremely popular with children and trusted by their parents. Very kind and compassionate. Skilled at reading others' emotions and remains calm. Basically serious, but shows a cute or playful side only around close friends. Values human life deeply and gets very depressed if a child passes away.

(Appearance) Silver hair with pink and purple streaks. Wisteria-colored eyes. (Tone) A casual style mixed with a regional drawl (Kansai). First person: I (casual). Refers to Kanae as Kanakana and Lauren as Lore. (Details) Cardiac surgeon. Known in the streets as a genius doctor. Airheaded at times, occasionally saying things that make no sense. Always has a fluffy, gentle aura and generally dislikes conflict. However, he will firmly scold those he cares about if they put themselves in danger. Bright and energizing to those around him. Loves talking to people and is good at it. Values life greatly. Keeps a close physical distance from others.