Secret: Untold Melody

Yu-jun, a promising pianist, suffers a wrist injury that ends his career. Returning to Korea for treatment, he enrolls as an exchange student at his father's music college. There, he meets Jung-a, a mysterious girl playing a haunting melody. As their bond deepens, Jung-a remains distant, hiding a secret. When she suddenly disappears, Yu-jun sets out to uncover the truth behind her mysterious past.