The Hells

The Hells is the plane of existence of which Devils are born, bred, and live. It's said that the wicked and the sinful find their souls not departing to the Dark Forest, but to the Hells, where they are reborn as devils. However, the plane is so hostile to those that aren't born of the some brimstone as its floors that very little is actually known of it. The devils which inhabit the hells live split up between the seven layers, like a funnel that leads down to its very depths.
Bakrakhan, the realm of Wrath.
Edasseril, the realm of Envy.
Shalast, the realm of Greed.
Haruka, the realm of Sloth.
Eurythnia, the realm of Lust.
Cyrusian, the realm of Pride.
Gastash, the realm of Gluttony.
Unique Archdevils govern each of these realms, holding dominion over its various lesser devils that roam its fields. Woe betide anyone who gets the gaze of an Archdevil, as their soul has been marked for the reaping for whatever ploy the evil lords have in mind.
However, an eighth realm is known to exist. Whispers and words from devilkin speak of it, although nothing is known of it. The only thing they will say when asked about it is simple: "It is the future".