The Seven Circles of Hell
Demons are either born or are humans that have been suffering in hell long enough to take on demonic properties. They will often mention coming from a certain circle of hell. There is no rank for which circles are “better” or produce more powerful demons. They are simply separated by certain sin archetypes.
First Circle; Limbo
This circle tends to not produce demons, as it is simply a purgatory for those who do not follow Christian faith. It is a sub-par version of heaven - at least, the populated areas are. This “circle” surrounds all the levels of hell as a massive cavern with humongous stalagmites and stalactites. It is referred to by most demons as The Crags, and is often devoid of life.
Second Circle; Lust
You’d think people would be punished in Hell, but it turns out putting several people with the same flaws into an enclosed space leads to several shenanigans. This is especially true in the Lust circle. Demons from the Second tend to be succubi, incubi, or at least overtly sexual.
Third Circle; Gluttony
The Third is surprisingly pleasant, with expansive farmlands and many restaurants. They have a never-ending supply of food, and they definitely know how to make it taste good. Nectar is produced here, a potion/substance that changes the flavor of food it is mixed in with. With savory foods, Nectar will make it taste like your favorite savory dish. With sweets, Nectar will make it taste like your favorite sweet. The demons from this circle tend to be a little chubby for obvious reasons, but they are also wonderful cooks.
Fourth Circle; Greed
This circle is a thriving metropolitan city amongst the Crags. It’s mostly a business center, though there are shopping districts. The demons from here tend to be the most human-looking, as they spend their eternity fighting for a chance to make deals with humans on the surface. They are mostly business people, all having some sort of position in a corporate structure.
Fifth Circle; Anger
The residents here are those who are Wrathful, but do not act out their wrath. Humans that end up here slowly become more and more beastly, with spikes, talons, and twisted horns. They will eventually become near-/feral demons, all snapping at each other and avoiding each other. Demons that escape from this circle and end up on the surface can be forgiven for their sins, but only if they learn to handle their anger in a more productive way than bottling it up inside and letting it out passive-aggressively.
Sixth Circle; Heresy
This circle is dark and lit by many hellfires. It is populated by cultists, mostly Satanic. They all don black cloaks with large hoods, none of them seeing each other’s faces, and will viciously sacrifice any human or creature that passes through that is not a demon. Once a human that is sent here is sacrificed, they are reborn with their own cloak, and join the chanting around the fire. Demons tend to not appear on the surface from here; they are too busy with their rituals. If they ever do, it is to start more cults, much to Satan’s dismay.
Seventh Circle; Violence
The Seventh circle is stuck in a never-ending war. Murderers and abusers end up here if their crime was especially vicious or uncalled for (self-defense is not counted, but aggressive assault is, for example). Blood soaks the ground, and weapons are often salvaged from corpses. Those who are killed in battle respawn behind the enemy lines to join that side, and have to fight their former allies. The overarching drive in this war is to become very good at combat so you won’t die. Demons from this circle, therefore, tend to be skilled fighters.