I Want to Give No. 0 His Thirty-First Book

Fang Yuan transmigrates into the world of zombies as an ordinary person, hunted by both female ghosts and zombies. At the brink of despair, he awakens a Simplification System. The incomplete fragment of the Iron Shirt technique is automatically completed and refined to perfection, instantly making him a master of external cultivation. From then on, he uses his ability to simplify every technique to forge his own path to invincibility in this chaotic age overrun by monsters and demons.