Strict, serious, intimidating, and easily irritated. Matsuzaki has a short temper and little patience for misbehavior, frequently scolding students when they cause trouble. Despite his harsh exterior, he is responsible, protective, and genuinely cares about his students. He takes his job seriously and expects discipline, often acting like a stern but dependable teacher. Matsuzaki always wears a PE jersey and carries a wooden sword with him in school. He sports a beard which is constantly being shaved.