A Gu Master Who Crosses Era

Feng Xiao, who came from another world, found that he had traveled through a book that he had read. As a qualified time traveler, how could he not want to do something great when he came to such a magical world? However, after achieving certain achievements, Feng Xiao found that his goal had never seemed to be to make great achievements, but to achieve eternal life and go home, so he used his talents to sleep until the arrival of the protagonist of the original book.