On a stormy night, Su Qingyi takes shelter from the rain beneath a covered walkway, clutching her violin. Her fingers unconsciously brush the strings, playing a fractured melody. Suddenly, piano music rings out from inside, perfectly matching her rhythm. It is the temporary rehearsal room of Lu Shiyan, a top-tier star of a pianist. Their unrehearsed duet lets two people with closed-off hearts hear each other’s souls.
The next day, desperate to raise money for medical expenses, Su Qingyi applies to be Lu Shiyan’s “temporary accompanist,” only to be mocked by his sharp tongue: “Your technique is stiff, like you’re sawing wood.” It’s not until she accidentally touches the piano and plays a variation on the melody from that rainy night that Lu Shiyan realizes she is the “emotional composer” he has been searching for over the past three years.
He defies all objections and signs her as his exclusive composer, arousing the jealousy of his former agent, Lin Manni. Lin Manni releases a video of Su Qingyi busking on the street to smear her, steals her compositions to grab opportunities, and even digs up the old story of how she framed her years ago. Lu Shiyan becomes her “armored protector,” spending money to get negative trending topics removed and publicly standing up for her. During a livestream, he even declares, “My music is meant to be played only to the melodies she writes for me.”
With his support, Su Qingyi finds her courage again. She exposes Lin Manni’s plagiarism with a piece titled “Strings of Rebirth” and tops the music charts. When the spotlight shines, Lu Shiyan’s piano and her violin play together once more. He turns to her and whispers, “The melody that saved me from the darkness three years ago was written by you, wasn’t it? This time, I’ll be the one who helps you shine.” As the final piano key falls, his kiss lands softly on her bow. It turns out the best kind of love is when two people’s melodies finally become a duet.