Due to a mistake, the hero of the novel was born 13 years later than expected. In order to prevent the world from collapsing, for love and justice, Xiao Yu, a professional cover-up artist who traveled through time and space and was familiar with the novel’s plot, had to temporarily take the place of the protagonist and go through the plot. After 13 years of hard work, he learned that his cover-up career was over and he no longer had to pretend to be the protagonist.