Xianwu Continent is a vast world where hundreds of millions of creatures are constantly exploring the path of cultivating immortals. Creatures that have developed spiritual intelligence gain powerful power by absorbing the spiritual energy between heaven and earth, thereby spying on the secrets of heaven and reversing their destiny. Throughout the ages, there have been powerful beings who could do anything in heaven or on earth, but no one can give a definite answer to what the path of heaven is. But no matter what kind of world, wanting to change destiny means competition, killing and conquest. The law of the jungle is the eternal law of nature. In the endless time and space, all kinds of creatures have evolved a path to immortality that suits them. The vast continent has a gathering of heroes, competing on the road to conquer and be conquered. Natural selection and survival of the fittest are the eternal laws of nature. When Gu Yun was wandering between life and death, freedom became his lifelong pursuit...