Our High School Music Genius Is Paganini's Reincarnate

Hajun just wants to play violin. He may lack confidence and skill, but even so—he'll keep practicing, if only for himself. But when his school's annual music test rolls around, Hajun finally tries proving to himself that he can perform... only to fail, miserably. As his nerves overwhelm him, in steps the mysterious Juwon to accompany him on piano. Turns out Juwon is a musical prodigy! With his help, Hajun is finally able to make real music. But just who is he? And why is his playing so familiar?