Basically, it's another continent that's hard mode. After rou finished up with everything in his continent, he goes there. The ocean that lies between the 2 has a very high mortality rate so not many can cross.

but what is the actual continent like

I think it's pretty much like the other continent in that there are different areas like forest and desert and cities and what not. There are also dungeons as you might expect. As for the factions, there are like 4-5 iirc. Fiends Facion -> [72 Chosen Houses of Fiends] - Control multiple cities Sun King Faction -> City State [Olji Manu Diunas] Grandes Faction -> [Death Merchants] - Control multiple cities Dragon King Granbadoss -> Control the Underground City [Granbaglas] technically Varol should be the Giant Faction, but meh, i don't know what he controls