Return of Immortal Rebellion's Cultivation Level

Wang Xuan traveled to the world of Xian Ni, became the brother of the protagonist Wang Lin, and obtained the system. Bind Wang Lin at the beginning and make Wang Lin his free wage earner. Wang Lin: "I don't know why, no matter how hard I try, I can never compare to my brother." (Note: There is a high probability that this book will not have a female protagonist. Of course, it will depend on the readers' wishes in the future. However, the author has never written about love and has little experience, so even if he has an estimate, he will not be able to write it well, so there is a high probability that there will not be a female protagonist)