**

When Lin Chuxia, who dreams of recording the world with old tapes, meets Jiang Chen, a musical genius who seals his heart with the piano, a collision that begins with a misunderstanding in the piano room quietly connects childhood promises forgotten by time. From resisting each other to being forced to cooperate, from discovering resonance to overcoming defensiveness, they slowly pieced together the unfinished music of that summer during the journey of collecting campus sound memories. But growth is never just sweet - family differences, future choices, and tests in different places follow one after another. When "I'm waiting for you" turns into "let's go together", two hearts learn the most precious chord through their stumbles: the best love is to make each other better people. This is a story about bravely moving toward each other, and even more courageously toward yourself. On a university campus filled with millions of people, once some voices are heard, they will travel through time and become echoes in the heart that will never dissipate.