Xia Yishan, who transferred to No. 20 Middle School in the second semester of her sophomore year, met many good friends in this third-rate high school, and her classmate Lin Nuan took great care of her. After graduation, almost all of my good friends continued to write their youth in this city. Xia Yishan also started a fulfilling college life, but the story about Ouyang who disappeared without ever meeting her was only known to her. What kind of person was behind the name that occasionally appeared in friends' mouths? Has the story with Lin Nuan been completed? The more difficulties Lin Nuan encountered also made her start to worry, and she discovered that growing up is not easy.