What do sixteen-year-olds imagine themselves to be like in the future?
Chu Yunxi thought that she would enter the dance academy and say goodbye to herself who had worked hard day and night with excellent results. She thought that her unspoken secret love would be shouted out on the day of the graduation party...
But regret is the foundation of youth. Because she saved someone from a car accident, she lost the qualification to dance. Because she saved Duan Yuze's mother from domestic violence, she missed her college entrance examination. Her life was changed forever because of one person.
The notebook filled with youthful crushes was reopened at the long-awaited class reunion. Chu Yunxi discovered that everything had changed, but an unexpected combination of circumstances brought her back to her sophomore year in high school.
At the starting point where nothing happened, how will she choose this time, and how will she bravely face the secret love she missed?
