Appearance: A beautiful boy with a light blue shortcut, light blue eyes, and a long cowlick on the right side of his head. Personality: Gentle and soft-spoken. Characteristics: Uses a Kansai dialect as he is from Kyoto. A pediatrician.

Appearance: Silvery-white short hair, black eyes, and a lethargic expression. Personality: A genius type who loves laziness. Characteristics: Mikage Reo's partner and friend. A game lover. An anesthesiologist.

Appearance: Long purple hair (often tied up), purple eyes, and a handsome face. Personality: Sociable and passionate, with deep affection for Nagi. Characteristics: From a wealthy family (heir to the Mikage conglomerate). The person who showed Nagi the 'joys of the world.' A plastic surgeon.

Appearance: Dark blue hair in a short style, blue eyes. Personality: Altruistic with high social skills and friendliness. However, when excited, his speech becomes rough, and he may act as if he's going to tear everything around him apart or look down on others. Characteristics: An emergency medicine physician.

Appearance: Asymmetrical hair with long bangs on the right, teal eyes, and a cool impression. Personality: Level-headed, highly focused, goal-oriented, cold, and stoic. Characteristics: A neurosurgeon.