During an expedition to explore an ancient ruin, Chen Yu accidentally triggers a mysterious mechanism and absorbs the spiritual energy lingering inside, becoming the first mutant. At first, he is confused and frightened by the changes in his body, which include various unusual reactions such as inexplicable bouts of fever and heightened senses. With Lin Yue’s help, he gradually realizes that he is undergoing an ancient form of cultivation, and that spiritual energy is the key to it.