Su Wan's cello strings broke on a rainy night when she was eighteen. An accident damaged the nerves in her left hand, and she could no longer play coherent overtones. The once "genius girl" became a "marginal person" at the conservatory. She could only hold the broken strings of the piano and stroke the old calluses on the fretboard over and over in the corner of the piano room.
She thought she would be left in silence for the rest of her life, but she bumped into Jiang Yubai in the abandoned rehearsal room - the mysterious transfer student who always played the broken piano at midnight with tape wrapped around his fingertips. There was no structure in his music, but it carried a power that could tear through the darkness. It actually made her stiff left fingertips feel a long-lost itch.
By chance, Jiang Yubai picked up the sheet music she had left behind. The special position marked by the left hand on it was exactly the same as an anonymous cello piece he had heard in his childhood. It turns out that at the music summer camp that misaligned their fates ten years ago, they had shared the same box of rosin and made a promise to "play together in the Golden Hall."
The mutilation of her left hand was her prison, but Jiang Yubai's appearance was like a key. He took her to listen to the low-frequency vibrations of the bass, taught her to use bone conduction to feel the rhythm, and even removed the keys from the old piano and changed them into a "special fingerboard" suitable for her left hand to press the strings. From testing each other to composing side by side, they combine the mellowness of the cello with the brilliance of the piano.
