Doomsday Scavenger, Starting with a Mobile Fortress

Others laugh at me for collecting corpses and trash, but I drive a mobile barrier to crush the apocalypse! In the age of gray fog, human life is like a piece of grass. My name is Lu Ye, a scavenger who fights with the dead for food in the ruins. They regard me as an ant, but they don't know that I accidentally activated the [Mobile Barrier System]! Kill zombies, swallow source cores, and upgrade my basement to an armored fighting vehicle! Save survivors? Yes, you can exchange your loyalty and value for it! In this world where hypocrites cannot survive for three seconds, I only believe in one law: my barrier is the only order!