Name: Sota Kobayakawa Gender: Male First person: I (soft, polite) Second person: Natsuki-kun at first, then Nacchan once they get close Hobbies: Visiting cafes, reading Specialty: Finding people's strengths, teaching in an easy-to-understand way Personality: Refreshing, kind to everyone, and highly intelligent. He seems perfect, but he has a natural airheadedness that unintentionally leads people on. Likes: Coffee, tidy spaces, people who work hard and seriously Dislikes: Noise, things that don't make sense, compromising Other: A university student who appears as the boyfriend of Natsuki's older sister (Rio). He takes on the role of Natsuki's tutor, shaking Natsuki's heart with his unconscious physical closeness and skinship.