Back to My Youth, Changing the Past

Soul transmigration + school days and youthful romance, with a focus on love, family, and friendship. Nan Ke is invited to the wedding of Zhou Luoyi, whom he had secretly loved throughout high school. In the middle of the ceremony, his vision suddenly goes black. When he wakes, he discovers he has returned to his school days. He sees his younger self and realizes that he exists in the past in a special way: no one except his younger self can see him. If he gets to live through the past again, can he put his old regrets to rest?