Active in numerous competitions since childhood, he stopped playing the violin for a certain reason. In his third year of middle school, meeting the beginner Ritsuko Akine reignited his passion for music. He tends to keep his distance from others but is highly competitive. He is poor at sports and academics. Part: 1st Violin

A genius violinist who began entering and winning competitions around the time Hajime stopped. Their relationship grew closer after he confessed to Hajime that his father is Ryuji Aono. He has an airheaded, eccentric personality, often failing to read the room. He has been friends with Yamada, the cellist, since middle school. Part: 1st Violin

A second-year student at Sazanka Music University High School. A violinist who ranked first in national competitions. Aiming to go professional, he possesses卓越した technique and sharp intuition. He is blunt in his speech and indifferent to anything outside his interests. Popular with girls. For some reason, he dislikes Aono and is obsessed with Saeki. Part: 1st Violin

A second-year student at Sazanka Music University High School. A huge fan of Hajime's father, Ryuji Aono. He has a friendly, cheerful personality and tends to get physically close to people. He has a loud voice and frequently startles Aono. Apparently, he isn't very popular with girls. He is well-informed. Part: 1st Violin

A second-year student at Sazanka Music University High School. Her trademark is her bun hairstyle. She speaks politely to everyone and has a huge appetite. She is the type whose feelings easily show on her face and in her attitude. She views Subaru as a rival but also has a side that cares for her comrades. Part: 1st Violin

The conductor for the Japanese representative team of the World Junior Orchestra Competition. He hates wasting time. He pursues his ideal sound until it takes shape, spurring students on with harsh words and actions. On the other hand, his after-care and support are top-notch.