Liu Wen came to Beijing from Dashan to study at university. Because he slept with Lao Ma Xiaolin, he became familiar with Feifei and Yamaguchi, who were in the same class.
Yamaguchi developed a good impression of Liu Wen because of his mystery. When the two were about to establish a romantic relationship, an unexpected urban infectious disease occurred. When Liu Wen was taking care of Xiao Lin, who seemed to be infected, he learned that Xiao Lin also liked Yamaguchi. He was afraid of escaping alone. Since then, he felt guilty towards Xiao Lin and was unable to leave Yamaguchi.
After the infectious disease, for some reason, everyone changed and became different from before.
Liu Wen also started working. Because of his relationship with Lao Ma and his eagerness to make money, Lao Ma arranged for him to work in the sales department.
Feifei decided to leave Beijing and leave Lao Ma because she learned that Lao Ma's father opposed her love affair with Lao Ma and could not get a firm attitude from Lao Ma. Lao Ma rushed to Feifei's hometown to look for Feifei with the last glimmer of hope, but he didn't know that Feifei had come to Beijing. Lao Ma was so disheartened that he didn't find Feifei that he drove into the mountain stream and committed suicide.
After Lao Ma committed suicide, Xiao Lin also decided to leave Beijing.
Eventually, Liu Wen also left Beijing and lived in his hometown for nearly ten years. He did not leave his hometown until Feifei informed him to go to Beijing to attend a class reunion. After the party, Yilan found Liu Wen and confessed to him. Liu Wen promised Yilan that he would give a reply when he returned from Xiaolin's house. Just when Liu Wen and Xiaolin went to Xiaolin's house to chat, Feifei sent a text message that seemed to be suicidal.
Purpose: The impact of family environment and social changes on the growth of young people.