Formerly a prize-winning violin prodigy, Hajime abandoned music after his father, professional violinist Ryuuji Aono, became embroiled in a scandal that prompted the media to harass his family. Now residing alone with his mother and in his final year of middle school, Hajime struggles to identify a new career path. However, hearing his classmate Ritsuko Akine play the violin inspires Hajime to dream of a musical career once again. With Ritsuko's assistance, Hajime prepares for the entrance exam at the prestigious Umimaku High School. Yet, to join Umimaku's orchestra, Hajime must overcome his past trauma and open himself to new musical horizons.