'To Our Lost Youth' was a Chinese web novel written by Xin Yiwu. The novel tells the story of the protagonist Zheng Wei's emotional entanglement with two boys in high school and their different paths in life after graduation. The ending of the novel was that Zheng Wei met Lin Jing, a man who had become a photographer, by chance and met again. However, the ending of the story also hinted that there was an irreparable regret between Zheng Wei and Lin Jing. This ending could be understood as the regret and memories of their youth, as well as the traces of youth left behind by the protagonists who eventually walked down different paths in life. The ending of the novel also gave people hope and enlightenment, making people realize the importance of cherishing the present.