A beautiful girl in high school, she likes to hide in the darkness and sigh about life. In her melancholy life, she pins her most fervent hopes on an indifferent young man. It is not until she experiences many things that she realizes that everything is in vain. Her deep love does not live up to her, but you and I have long been separated from each other. If I could do it all over again, I would rather never have known you, Mu Yan.