I'm Fixing Bugs in the Wasteland

In the wasteland, everyone is trying to survive. When Chen Jin woke up, he only had a broken tent. In front of him was a world that called itself a "game" - picking up scraps, setting up tents, completing tasks, and collecting points. More than forty players crowded around a rusty well, hanging on to half a ladle of water. But Chen Jin's eyes were different from others. He could see the direction of the water supply network in the old era under the pile of rusty iron; he could see a stream of clear water two meters underground under the pile of collapsed bricks; even the old fitter on the roadside who claimed to have lost his memory had two words floating above his head: residual soul. Relying on these eyes, he found water for the camp, built a well, and erected the first fence. But the clearer the water, the more evil things are. The Wasteland Gang who came to collect protection fees had "Negative Memory Dominated" marked on their heads; the White Tower where missions were issued had a warning of "Unauthorized Access" hanging on the back; that old Zhou who couldn't even remember his hometown had holes all over his body with misplaced memories. Chen Jin began to suspect something fatal—— Are the NPCs in this "game" really just NPCs? If they were all human beings, then what was the one he killed with his own hands? He can survive in the wasteland, he can do it; he can build a city and establish prestige. But when the world tried to feed him the truth, for the first time, he was afraid.