Gray Fog World, Stable Survival

I woke up unexpectedly, thinking I was not dead, but I didn't know I was in a different world. Strange villas, hard and wide roads, and I still feel that this world is suitable for living and survival. After seeing the strange things in the sky and the monsters everywhere, I realized that only staying within the boundaries of the Holy City is safe. When the saint fell and had to divide the city and expand the territory, he realized that Ansheng's life was over. Only by taking magic potions and advancing to extraordinary levels can we survive in this dangerous gray fog world. The ninth extraordinary level, in the gray mist world where gods exist, which level can I reach...