The world is changing, and a sandstorm is coming! A yellow dragon rises in the distance, and a terrifying monster is hidden in the strong wind! The end of the world is coming, the zombie craze breaks out, civilization is destroyed, and morality collapses! Countless monsters appeared all over the world, killing people everywhere, and the entire Blue Star became a slaughterhouse! There is no paradise on earth, and there is no peace in the world! How do humans find their way out? Long Yan, who was reborn, unexpectedly obtained a system and was born with a doomsday system! Build a shelter, create mechanical creatures, and rise strong! Hold the famous sword and kill everyone in front of ancient reptiles and zombies to defend the dignity of the human race!