Embers in the Sunken Ruins: Guarding the Starry River

Three hundred years of industrial pollution have sealed away Earth's spiritual energy, plunging humanity into a desperate age without cultivation. A wasteland scavenger boy reconstructs the path to immortality through ancient leyline science and a gene-unlocking system. He leads humanity to break through the limits of life and fight against high-dimensional alien races, rising from the wasteland's depths to the pinnacle of galactic civilization.