The protagonist Yang Changmin was originally a negative and decadent young man who was addicted to the Internet and escaping from reality. He had long been immersed in regrets and dreams about Lin Zhijia, his crush in middle school.
A suspected time-travel experience brought him back to his middle school days in 2015. This time, he was determined to change: work hard to integrate into the group, study hard, and muster up the courage to interact with Lin Zhijia.
The core of the story is the protagonist's journey of getting a second chance, trying to make up for the regrets of youth and changing his attitude towards life.
Purpose: I hope that I will be happy in parallel time and space