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This earth was originally the same as the earth we live in, but in the very distant past, a substance called "Ziyuan" began to appear on the ground. The emergence of this substance affected the evolutionary path of all living things. This earth has become a different earth since then... From the survival of the ancient overlord dinosaurs to the present, humans have evolved different routes, and the mystery of the birth of Ziyuan is accompanied by the paths of several heroes...