Killing Demons in the Apocalypse, Starting with a 40-Meter Sword!

A hundred years of strange desolation, thirty thousand miles of red land, monsters kill people and eat them, and zombie tribes live after seeing death! This is a post-apocalyptic world, where monsters roam freely, zombies invade, and humans are forced to build high walls and huddle in a corner. But there is no unstoppable path, martial arts is revived, and the most powerful man can shatter the void with a single sword. Li Cheng came through time travel and thought he would be disappointed, but fortunately, he could get a treasure chest by slaying demons, which randomly revealed martial arts, rare items, etc. [Open the jade treasure chest and get the reward: The Sixth Art of Full Level Aohan! The beginning was this terrifying forty-meter sword. From then on, Li Cheng started a vigorous path of slaying monsters! "I have a sword that can cut forty meters. Can you run thirty-nine meters?"