Aerism

Religion of Ærism:
Ærism is focused on the great leaf, on which our world (realm: Kylorne) is on. The realm we are located in is in a raindrop, and all the stars around us we see from our realm are other leaves with realms. It´s also the national Religion of Østerion and maybe even other nations.

The Named Raindrops/Realms On Our Leaf World Are:
(Kylorne/Overworld) - Rægnor | Kylorne / Kjilørne

(The Nether) - Ganteriøs

(The End) - Elyønis

Creatures:

Dæveryx - Enderman

[Insert Demon Lord Name] - Ender Dragon/Demon lord

World Creation:
At first, there was rain and darkness. Endless rain. At that time, the raindrops were not able to produce worlds nor life, they were just empty spheres.

Legend of Elyønis:
Elyønis is mentioned in Ærist histories as the land of the void. Described as a desolate chain of islands inhabited by a strange species which look like tall, dark and distorted versions of the Human races in Kylorne.

The realm is controlled by the Demon Lord [demon lord name] which takes the appearance of a gigantic dragon. After conquering his own realm, the Demon Lord turned to the other worlds and started a devastating war. He built a system of portals to travel to nearby raindrops by harnessing the power of the World Core(more lore of this is elsewhere). Every world has its own core, which is buried deep underground but since Elyønis is made of islands and void, the Demon Lord could reform the core into a flying crystal of energy named the [end crystal name] which he placed upon a gigantic tower made of the hardest stone known to man. With the first [end crystal name] he could activate a portal leading to other worlds. His first destination was Ganteriøs. A world once like ours, but corrupted because of the [Demon Lord Name] who stole the world core. Now it is a hellscape with lava seas and terrifying monsters. The Demon lord took world after world but when arriving at Elyønis he was met with resistance. [Demon Lord Name] managed to steal the world core but the ancient people living in the world fought him and pushed him out of Elyønis. Because the world didn't have a core anymore, it began to corrupt itself. Monsters got created and at some points in the world the same materials which can be found in Ganteriøs began to appear which you can still find today.

Because of this, our ancestors gathered the strongest fighters and mages to attack the Demon Lord's home world. They went through the portal to Elyønis which [demon lord name] created. They found themselves on a platform of the mysterious black stone of which the towers are made. The brave travelers quickly built themselves to the main island where they found 9 towers with one [end crystal name] on each one of those. The fighters slay the Demon lord and return the crystals to their worlds. As the [Demon lord name] fell dead to the ground, the Dragon´s body disappeared and in his place thousands and thousands of large black figures appeared which would later be named Dæveryx.

After returning the world cores, the worlds started to regenerate and Ganteriøs now has forests, and wildlife. Because of the removal of the cores, the portals broke down and travel between worlds is almost impossible again.

But the core of Elyønis was missing…

The Beginning:
In our World called Aeris, there were several existing realms, in peace and beauty. Each one of them were unique in their own ways, but they all had a core, a powerful magical object with almost unlimited energy, using this energy to keep the world together from falling apart. Those cores were either protected by civilisations or hidden deep inside the realm. If a civilization found the core of their realm, they were able to use it for powering machines and weapons, or for portals. Those portals could be used to travel between realms, as they are all connected together through the leaf they are on.

The Collecting:
The Demon Lord of the realm Elyønis (The End) came up with an idea to infiltrate other realms and steal their cores in order to get more power and energy. With his army of servants, called the Dæveryx (Enderman), he was able to travel to several realms and fight the civilisations to obtain the core. Every time a realm loses its core, the realm won’t be able to keep the land stable and it will fall apart, everything will be destroyed and the place you know will remain uninhabitable, since it will disappear.

In total the Demon Lord collected 10 cores of realms, leaving them in their inevitable fate of disappearance. (Two of those were the realm of Elviria and the realm of the nation Osterion)

As he worked on a project using those cores, he converted them temporarily into crystals, using them to heal and make the Demon Lord himself more powerful. He placed them on 10 massive obsidian pillars, surrounding his nest.

Existing Realms:
Most of the realms were eradicated of their existence, some of them the Demon Lord couldn’t conquer, or didn’t take the risk of trying. There are 3 realms who survived the purge:

Kylorne:
The realm of Kylorne or Rægnor, also called the Overworld by its civilisations. It's the oldest realm in existance of Aeris, and because of this, its bedrock layer deep down grew over its core, making it unreachable for the Demon Lord but also for the civilisations. So no one could use its power and energy.

The realm is full of colors and life, since it is also the most populated realm in Aeris. There are several biomes in which each of them have unique characteristics and features.

There are a bunch of civilisations forming nations and towns together. Diplomacy, economy, technology, and much more is a by human-formed rules they all follow to be human themselves.

Ganteriøs:
The name of the second realm is Ganteriøs, which also goes by the name of the Nether. Stories tell that the Nether didn’t have a core long time ago and this ledd the realm to become unstable. The creatures of the nether though united together, leaving all their past differences behind, to bring back its core. Though it took them long enough, it was enough to keep the realm alive. In time without the core, the Nether became unstable; it almost folded itself, leading the Nether to get a ceiling. The heat got higher and higher, burning all the grass and dirt away, turning stone into strange bloody rock, converting the water into lava.

Though this happened long ago, and there are signs of regeneration of the realm. Forests and vegetation start to appear.

???:
Very little is known about this realm. Tales speak about a world of paradise, untouched from any danger and terror. Others speak of a horrible world of slavery, death and fire. A literal hell, with a worse fate than Ganterios. Until now, no one has ever really reached this realm, and truly proved it. It is almost impossible to track it down, as people tell of a strong force field surrounding the estimated location of the unknown realm.

Elyønis:
This realm is home of the powerful Demon Lord. Its world is something really standing out from others realms. Most of the land is made out of void, and flying islands with almost no vegetation characterize Elyønis. There are no real existing civilisations, as the inhuman inhabitants only create flying cities and ships. Those are known to hold great valuables and treasures.