Will you say goodbye to the rain?

In the movie "Unspeakable Secrets", Lala Xiaoyu passed away and said goodbye. Lu Xiaoyu died of asthma 20 years later. Before I died, I was engraved on my desk with correction fluid. I love you. Do you love me? Ye Xianglun later learned the ins and outs of the matter. At the moment when the school demolished the piano room, he ventured to play the music Xiaoyu taught him before his death. Back in time, he went back to 20 years ago. Xiaoyu was still alive 20 years ago, ending in a graduation photo.