Planes of existence

The universe of the Main RP takes place in one of the three planes of existence, these planes of existence are realms or dimensions that are separate from each other, there's the universe, where Derbkerai is located as a planet from Andromeda, there's the Abyss, which is a dimension where most summoners can access, and then there's Hell, which is where the definetely lost souls eventually go and become demons, all three of these are inside an infinite Void, which is the space between them and where they are located.

The Void
The Void is the space between the planes, it's formed by some strange green cumulus with unknown origin, it houses all the planes of existence there are, although there's technically only three, nobody knows what it is nor what it does, some people think it's just where everything that exists is, meaning it's technically a place that doesn't exist, although it clearly houses something.

It makes possible for the planes of existence to have links between them and makes the interplanar wormholes possible, although only very experienced mages are capable of opening one, some accidents or weird things that can happen by the Void's influence is the Void Intrusion, which is a rift, a fracture of the energy separating the planes from the outside influence of the Void, that can make whatever is in the Void enter a plane, these rifts usually close themselves after a while, but nobody knows what the rift has caused inside the plane itself, or what has entered.

Another one of the accidents possible, or rather, an artificial accident, is a Wormhole break, usually, wormholes are subject to the time continuity of the Void veil, which is the sphere of its influence and what can be seen, however, sometimes, a certain realm of a plane could nullify the veil influence in its wormholes, which means it creates a huge time distorsion, to the point where this realm could have gone trough thousands of years meanwhile in any other plane just a day has passed.

Planes
The planes of existence, as mentioned before, are entities located in The Void, they house everything that exists such as the universe itself, they're connected trough wormholes that can be opened by experienced mages and are protected from the Void's influence meanwhile functioning with the principles of the Void veil.

Universal plane
The universal plane houses the universe itself, all the cumulus, galaxies, stars and planets are located there, and is the biggest plane of them all, most of the Main RP takes place here.

All the mortal creatures live in this plane, they form civilizations and expand like any mortal species would, it's the plane where life blooms, due to its importance, mortal creatures only care about it, the other planes are nothing but places where they can obtain power to use in the universal plane.

It has three possible wormhole links at the same time, two to the Abyss and one to Hell, lost souls usually cross these wormholes to go to the Abyss, where they either become abyssal monsters or keep going to Hell, where they become demons.

The Abyss
The Abyss is the plane between the universal plane and Hell, it's where all lost souls stop before they keep going to Hell or they stay, the Abyss is formed by an exotic landscape where lost souls that become abyssal monsters can live in peace without any overlords or social obligations, it's a haven of powerful monsters to live peacefully.

It's the most used plane by summoners in the universal plane to summon creatures, due to their power and strenght, they are a great resource for such spellcasters, it's the reason the Abyss is a heavily studied subject in the magic schools of Derbkerai.

Although nobody rules this plane, some theories claim that the Abyss is the most corrupted plane by Void Intrusions of them all, which is the reason why it houses such alien and strange creatures, nobody has been able to confirm this yet.

Hell
The plane of hell is the location furthest from the universal one, they're complete opposites, Hell is formed by fragmented realms, each one ruled by each Major Demon, who give their respective realms the shape they desire, it's heavily diverse in lands, but also the scariest place to be.

Definetely lost souls that weren't able to stay in the Abyss end up in this plane, becoming demons with a power that is directly related to the energy lost souls have gathered when they had a body. Meaning they become as powerful as they were in the universal plane. In most cases, said souls become mere imps, that are completely worthless to any other demons that aren't imps themselves.

It's the home of all demons, which enjoy meddling in the universal plane, either for mere fun or due to resentment. It's thought the origins of this plane is the deity Varecron, but nobody knows for sure.