Uncle Jiu: I am the one-armed swordsman, I will destroy the devil in a year

Traveling through to Renjia Town, the sky collapsed and Qin An became a one-armed disabled man. This era was already full of warlords, and there were also blood-sucking zombies and ghosts wreaking havoc everywhere.
Qin An does not worship Taoism or practice Buddhism!
Refining the skin, grinding the tendons, tempering the bones, solidifying the organs, draining the blood, breaking the limits of the mortal body, tearing apart demons with one arm, suppressing zombies with fists, and slaying all evil spirits with a knife!
Become a martial saint of the Republic of China!
One man, one arm, one sword, kill all the evil demons in the sky, and start the sixty-year eradication of demons!