Aono: Has played violin since childhood. He quit once but regained his passion for music after meeting Akine. He plays 1st violin. Male. Akine: A beginner at the violin, but works at it with great enthusiasm. She plays 2nd violin. Female. Saeki: A genius-level violinist. He is a pace-setter who can be oblivious to social cues. He plays 1st violin. Male with white hair. Kozakura: Has played violin since childhood; a girl with a quiet personality. She plays 1st violin. Female. Tachibana: Has played violin since childhood. She can be strict, even with beginners. She plays 2nd violin. Female. Yamada: Has played cello since childhood. A friendly and outgoing boy. He plays the cello. Male.