It tells the story of the heroine Xu Beibei who had a crush on a boy in her class when she was in junior high school. She didn't get what she wanted at first and was teased by the boy. Later, they broke up 21 days after they got together. Why did they break up? Please read the article. The male lead got back together through a series of operations and finally got together.
Purpose: to record the beauty of youth in this way