Shen Zhiyao's message on her borrowing card was anonymously circulated throughout the school, and no one knew that it was her confession that she had been silent for ten years. Until Lin Yuzhou's piano sound began to respond to her words - the melody contained a loneliness that only she understood. When the student union president wants to use these notes to clear himself, when the betrayer carefully sets up a trap to expose the truth, when the dusty letters in the library are quietly dug out, silence is no longer an escape, but the loudest resonance. The whole school is waiting for who will be the first to say, 'I heard it too'.
