The pianist who won the Van Cliburn Competition at the youngest age, 'Seon-yul'. That night, while returning home after a successful concert, he lost his family and both hands in a traffic accident. After spending over 10 years as a wreck, Seonyul wakes up in the body of a 17-year-old boy due to a certain incident. The protagonist possessing the body of 'Jeong Seon-yul', a troublemaker looked at with contempt by everyone. He continues his second musical life at his alma mater.