Tianyuan Wushi

In 2073 AD, humans developed a mysterious crystal called Yuanjing that contained huge energy tens of thousands of meters underground. After that, humans used Yuanjing energy extensively, and technology skyrocketed to an unprecedented level. But within just a hundred years, the earth's energy resources were rapidly depleted. In 2157, a cosmic storm swept across the earth, and all the crystals resonated together, releasing radiation that affected the structure of living organisms. For a time, all animals and plants around the world mutated and evolved into powerful Yuan beasts. In just a few years, less than a few hundred thousand humans were killed by Yuan beasts.