I Really Don't Want to Be a Gangster

A young man who originally just wanted to eat and wait for death unexpectedly picked up a set of outrageous magical skills that "can only save people, but not hurt them". He was forced to travel around the world, relying on serious sand manipulation, reverse routines, talk and fallacies to kill famous people, defeat peerless masters, rewrite the entire thousand-year rules of the martial arts, and finally accidentally became the most outrageous gangster in ancient and modern times.