The female lead, Yan Ruozhi, is a sports reporter. While interviewing Jing Hao, a top prospect on the city's swim team, she is repeatedly turned away. Then she learns that he was her high school classmate, and, by a twist of fate, she returns to age seventeen.
Unable to find a way back to reality during the dull days of high school, Yan Ruozhi decides to defy fate and live a different life, experiencing youth all over again. By chance, she gets to know Jing Hao, who is competitive and determined to be first in everything. After failing the college entrance exams, Jing Hao loses all motivation. With Yan Ruozhi's help, he finally escapes his oppressive life.
On this journey through time, Yan Ruozhi makes up for many regrets from high school, finally comes to terms with her previous relationship, and gradually improves her own life. This is a story of youth...
Theme: Youth is full of regrets. If you get the chance to go back, make the most of it and turn the current into new memories of youth.
