The Myriad Devil Islands was like an independent stand-alone world, ruled by the Myriad Devil Sovereign.
The Myriad Devil Sovereign was merely a title. No one on the outside knew who it was who first established the devil islands, and if the Myriad Devil Sovereign was a single person, or a title passed down the generations.
The Myriad Devil Sovereign was like the god of the Myriad Devil Islands, with the faith and belief of everyone who lived on the islands.
On the Myiard Devil Islands, the place where the sovereign was rumored to be at, was none other than the legendary ground - the Devil Mountain!
There were many places on the Myriad Devil Islands with the name Devil Mountain but as for the Devil Mountain of the legends, there was only one. This towering Devil Mountain was something carved out by the Myriad Devil Sovereign himself. It's an incredibly lofty place and to many people living there, it was a place of legends.