Sweet and sour is very beautiful. It tells the story between two different types of girls. Tian Dingding is ordinary, believes in friendship and is willing to give everything for her friends. She has no friends in her new school, only her deskmate Lin Zhi is willing to be friends with her. Lin Zhi is a beautiful girl who is full of stars and loves thousands of things, but her life experience is very miserable. When she reunited with her childhood playmate Zhou Chumu, she fell in love with him desperately. When her friend Tian Dingding advised her to separate from Zhou, she didn't want to do it on the pretext of impossibility. She did something she shouldn't have done for Zhou, and even used Tian Dingding. In the end, everything was exposed to the sun, and Lin Zhi could no longer explain it. Tian Dingding was heartbroken and slapped Lin Zhi in the rain. At the end of the story, Zhou left Lin Zhi for money and went to another city to accompany another woman. And Lin Zhi finally.