Mr. System appears again, leading ordinary people who have accomplished nothing to happily return to their youth and make up for the regrets of those years. Xu Lingchrome returned to his boyhood with the experience of 23 years old. The bad guys we caught together in those years, we had a pure crush on together. This article has it all, commonly known as a hodgepodge. The purpose of writing this article is to fulfill Xu Lingke's dream, and also to fulfill the author's own dream. I hope everyone will support me. I have always believed that a firm heart is the prerequisite for overcoming all difficulties, so Xu Lingchrom will have a firm heart. This article is from a parallel space, and the historical background is similar, but not the same.