The reason why such a place is called unknowable is because except for a few high-ranking people in Thien Duc Thanh, no one in the upper world knows that the upper world has such an extremely mysterious place. ,At this time, outside the southern gate under the tall iron wall, it was already crowded like going to the market. Early in the morning, there would always be new waves of slaves coming here, including both worldly families and monks. family. As well as forces and sects to choose and purchase, it is used to develop the overall strength of Tiande City.