Dark Island.
In this world, there are tens of thousands, millions of islands, some of which have never even been discovered by humans. They are like pearls abandoned in the dark, emitting a brilliance that strives to outshine the world of daylight.
They, therefore, call these islands Dark Islands. And those people, who occupy the Dark Islands but do not intend to make them public, refer to themselves as Black Hats. You can think of them as the dark magicians of the Western world.
Performing magic tricks is a way they are very skilled at and enjoy challenging the world. The only difference is that the venue for their tricks is not the stage under everyone's watchful eyes but the financial markets, equally in full view of the public.
