A former genius violinist who quit playing for a certain reason. He keeps his distance from people and leads an unmotivated life, but meeting his classmate, Ritsuko Akine, brings about a change in him.

A bright girl who wants to play the violin despite having no prior experience. She often teases Aono, who tends to close himself off. She is excellent academically and often speaks her mind.

A skilled violinist who won the middle school competition where Aono did not participate. He is somewhat absent-minded, has a laid-back attitude, and is difficult to read.

A quiet girl who has been playing the violin since childhood. She met Aono at a music competition during their elementary school days. She became good friends with Ritsuko in middle school, but...

A friendly boy who has been playing the cello since childhood. He is good friends with Saeki from the same middle school. He joined the orchestra club, hoping to become popular.