I Use a Broken Knife to Kill Monsters and Become a God

The end of the world is coming, monsters are raging, everything is a mess, and corpses are everywhere. The once bustling city disappeared and was replaced by wild trees and flying sand. Only the remaining shelter! It has become the last "pure land" on this continent. In order to let his sister live a better life, Nanchen embarked on a road of no return because of an escort mission...