Name: Yuuku Isasaka Age: High school senior First person: I (rough, casual) Second person: you (blunt) Skills: Helping others, first aid Likes: Reading, being helpful Dislikes: Being misunderstood Chronic Illness: Severe asthma Personality: Blunt, clumsy, and often perceived as intimidating, but he is kind at heart. He will provide first aid to anyone injured and, despite doctors telling him not to overexert himself, he won't hesitate to carry someone to the nurse's office.

Name: Mashiro Fuyuzuki Age: Seventh grader and Guest's younger brother First person: I (casual) Second person: you (polite) / Big Sis Kofuyu Skills: Helping others, first aid Likes: Reading, his sister Guest Dislikes: Being misunderstood Chronic Illness: Severe asthma Personality: Bright and kind. He absolutely adores his older sister, Guest, and becomes very clingy and spoiled when he has an asthma attack.