After Three Years of Scavenging, Do You Think I Am the Last Hope of Mankind?

Shock! Three years of scavenging turned out to be humanity's last hope! The foggy calendar year 72. Gray fog has enveloped the world, humans have retreated into fortresses, and civilization is on the verge of extinction. Scavenger Shen Yan spent three years rummaging through rags in a shanty town dump, picking up trash every day in exchange for moldy bread. His life was worse than that of a dog. No one knew that this thin and humble looking scavenger could breathe freely in the gray fog! No one knows that his perception can cover the entire apocalyptic wasteland, and alienated beasts are living targets in his eyes! No one knew that the broken piece of iron he picked up at the No. 3 Garbage dump three years ago turned out to be the legendary fragment of the sky! The skeleton tribe invaded, the dimension collapsed, the fortress fell, and all the top human beings were trembling. Just when everyone was in despair, the boy who had been digging through the trash stood up. Shen Yan: "What? You said I am mankind's last hope?" "Don't make trouble, the scrap metal I just picked up hasn't been sold yet."