Jiang Ruo, a talented academic who just finished the college entrance examination, had several nightmares about something unexpected happening to two peers who were strangers to him. On the train to his grandmother's house, he accidentally traveled to the parallel time and space of last year. As a senior high school student, he became classmates with Tang Yin and Qu Zilu, the two protagonists in the dream. After repeated time travels many times, he realized that he needed to save these two partners and reverse what would happen in the future, so that he could end the time travel and return to reality. In this process, Jiang Ruo gained the most precious friendship.
Intent: No matter what time and space it is, sincere friendship and deep feelings are the eternal themes.
