Lin Xiao woke up from high school math class, only to find that she was back in high school and experienced high school all over again. Lin Xiao just wanted to leave no regrets, work hard to get into a good university, and cherish every day with her high school classmates, because they would all go to different places in the future, and maybe they would never see each other again in their lives.
Purpose: Cherish everyone around you, because time passes easily