Mad Demon

First appearance: White-haired old man

More than a decade ago, the Four Shadow Demons were very well-known. They didn't act as a group but acted independently, moreover they hadn't even known each other. The four people earned the nickname 'Four Shadow Demons' because of how much trouble they had caused the various superpowers by killing countless experts and peak experts. They were independent players, and therefore, the various superpowers had a very difficult time tracking them down and dealing with them. During the height of their troublemaking, these four had been a hot topic among the general populace, so the Secret Pavilion had named them the Four Shadow Demons, a nickname that had spread across the virtual gaming world. The various superpowers had the greatest headache trying to deal with players like the Four Shadow Demons. Not only were they extremely powerful, but they were also insufferable lunatics. List of References