In his sophomore year of high school, Su Nian stuffed the love letters he had saved for three years into Jiang Yu's textbooks, but what he got in exchange was the indifference of him tearing up the paper in front of the whole class. The shredded paper was like snow, and her secret love was trampled under her feet. Good friend Song Zhi was so angry that he wanted to argue, but Su Nian held him back. However, the next day, she found a piece of pieced-up letter paper on the desk, with Jiang Yu's scrawled handwriting on it: 'I'm sorry - this sentence was written by me. ' The boy who tore her heart into pieces began to use a clumsy way to pick up the courage she had thrown away piece by piece. He was not the only one to pick up the letter. The fragments returned anonymously by art student Xu Wantang and the later apology from sports student Zhao Ci turned the broken love letter into a secret relay race.
