As Xiang Lun becomes closer to Xiao Yu, he discovers that she is actually mute and communicates through writing in a notebook. Despite this, their bond grows stronger as they continue to share their love for music and support each other in their musical pursuits.
One day, Xiao Yu reveals to Xiang Lun that she has a deep secret connected to the mysterious melody she plays on the piano. She confesses that she made a promise to her childhood friend, Yen, to play the melody for him once she became a skilled pianist. However, Yen tragically passed away before she could fulfill her promise. The melody holds a special significance for her and she is determined to keep her promise to Yen.
Despite the challenges they face, Xiang Lun is determined to help Xiao Yu overcome her past and find closure. Together, they embark on a journey to uncover the truth behind the mysterious melody and discover the healing power of music and love. As their relationship deepens, they learn to confront their fears and insecurities while supporting each other in pursuing their dreams.
Secret is a heartwarming tale of love, friendship, and the power of music to heal and connect people in unexpected ways. It explores themes of loss, forgiveness, and the importance of communication in relationships. With a beautiful piano score and a touching storyline, the film will leave audiences inspired and uplifted.