After the cataclysm, the wasteland was shrouded in gray fog, and the alien creature "Notis" awakened, swallowing up the evolution of life. Li Ziye and Xiao Tao set out on the road to escape because of their parents' last wishes - their father sealed Notis with a bronze prosthetic eye, and their mother used blood as a guide to awaken the "light". Using the blood contract as their blades, the two shuttled between the void space and the real battlefield, fighting against the contaminated experimental subjects and the erosion of Notis' consciousness. When the door of mist is about to open, they use their parents' light and love to temporarily lock in the crisis. In the apocalypse, light is not only hope, but also struggle engraved in the blood.
