Where do all things come from and where do they end? The vast continent, the boundless ocean, where is the end of the world? Some people say it's because of God, who created everything; some people say it's because of the Great Dao, whose rules evolve everything… But everything is so magical that no one can explain it. Reproduction, evolution, survival of the fittest, no one knows how long this history is. Some people once curiously explored it, but in the end nothing happened. This is the source world! It is a place full of dangers and opportunities. Some people become famous and powerful; some people die and turn into withered bones. Here, only the strong can survive!