First mentioned in chapter 2085, when Starlink attended the White River City's First Auction House Competition.
Description
The Four Shadow Demons consist of four crazy players who play independently. They had brought much trouble to many superpowers such as Battle Wolves and Sacred Temple, due to challenging and killing many of the experts from them. Many superpowers had tried to track them down but to no avail, as it was hard to find any of their trails.
The Four Shadow Demons are: