In 2021, at the age of 28, Nan Xiangwan, who is the human resource director of a world-renowned company, is also a patient with academic discrimination. She seems like a master of life, but is full of anxiety in her heart. A high-tech psychotherapy brought Nan Xiangwan's memories back to 10 years ago, allowing her to review her senior year in high school and face Class 7 which she was incompatible with. In order to re-enter Guanhua University, Nan Xiangwan had to solve one problem after another, such as the classmates who kept disturbing her study,and the unbearable memories of high school. During this process, Nan Xiangwan gradually became friends with sports student Lin Xiaoran, and the two grew up duirng battles of wits and courage with each other. Nan Xiangwan finally realized that in addition to scores, everyone also has their own shining points, and life is not only about "winning". She began to help classmates to fall in love with learning and to chase their dreams. In the end, Nan Xiangwan obtained friendship, regained the blood of youth.When the time she met Lin Xiaoran again, she decided to take the initiative. They got to know each other again and started a happy life.