Wasteland Anchor

When the gray fog descended, all things began to mutate. Alien gray fog swept across the land, reducing cities to ruins, with mutant beasts running rampant and order collapsing. Lu Ye, a former engineering rescue team member, was betrayed by his companions in the seventh month of the catastrophe and abandoned in a crumbling building. On the brink of death, he awakened the [Biological Anchor]. He could analyze the tissues of mutated creatures, modify weapons, and strengthen his body to survive in the perilous wasteland. But this power came with a deadly price—every use deepened the mutation erosion, and the more he used it, the closer he came to becoming a mindless monster. Within the ruins of Jiangcheng, resources were scarce and precious. Raiders burned and looted, survivor camps clashed with each other, and the darkness of human nature was far more terrifying than the mutant beasts. Lu Ye gathered a few companions he could trust with his life, suppressing the growing beast within him while desperately scavenging for supplies in the ruins and setting traps to counterattack the enemies who had betrayed him. The group broke through the fallen city and headed for the Ark, a sanctuary wall that people yearned for. They thought they had found humanity's last pure land, but they uncovered the conspiracy hidden behind the wall: class oppression, secret human experiments, and the base's high-ranking officials who had long known the truth about the gray fog and even sought to control the mutation power. — Description from novelcodex.org