When did Wei Xun and Wei Xuechen of the Thriller Tour Group meet each other?

Wei Xuechen meets Wei Xun in Chapter 163. The two characters Wei Xun and Wei Xuechen come from the novel "Infinite Tour Group". The author is called Yan Guhong. In the novel, Wei Xun and Wei Xuechen are twin brothers who have been separated for many years. They are in Chapter 163 They officially met each other at that time, and the whole novel tells the story of how here, he was surprised to find that not only could he extend his life, but he could also feel his favorite pain.