Don't Call Me Crazy, I Just Have a Zombie King Living in My Head

This is a global fog. Humans build bunkers, build high walls, and tear our bodies apart with powerful firepower. The soul melts into the gunpowder, and the steel becomes the body. We infiltrated the walls and burrowed underground until the first lucky person got close to the walls. The soil is whispering and the walls are wailing. "Shhh" "Here we come"