In the year 2012, on the 21st day of the 12th month, the world as we know it ceased to be. An unknown planet appeared close to Earth. Scientists all over the world couldn't explain the phenomenon, no satellite could show how the planet came to be. The planet in question was later dubbed Nibiru, it was a red and black planet and it was roughly the size of Venus.

Multiple spacecrafts were sent to Nibiru to analyze the planet's condition but not a single one made it to the surface they were all destroyed as soon as they entered the atmosphere. That was until one of them finally managed to get a picture of what was destroying them. It was a blurry image of what appeared to be a bat-like creature with 6 wings, tentacles for feet, and a humanoid face. But the stubbornness of humanity finally led to getting a sample of the planet's atmosphere.

Upon testing the sample they found that none of the elements found in our atmosphere was present in theirs. Their atmosphere was comprised of a single unknown element later called aether. When this element is exposed to any of our planet's natural fauna they rot almost instantly.

After this discovery, the various governments of the world agreed to leave the planet because of how dangerous it was. But unknown to most Russia had gotten its hands on a sample of the aether as well. They were also testing it and doing some morally questionable experiments while the rest of the world was unaware.

During one of the said experiments including nuclear energy, the poor handling of the aether and negligence of the scientists. The two elements made contact and caused a nuclear disaster that far surpassed the likes of Chornobyl and Fukushima. The city of Samara was where these experiments took place and it was the city that burned for a total of 127 days nonstop. But a measly city burning wasn't the main issue it was what was created in that burning city.

Exposure to nuclear energy augmented the aether and by some means caused a rift in space. A rift that connected Nibiru to Earth. Monsters began pouring out of the rift causing a global catastrophe. The weapons humanity had available barely did anything to these monsters. They gorged themselves on humanity all while the aether was merging with our atmosphere.

However, due to the rift being relatively small not a large amount of aether was being released. As the small amounts of aether blended with our atmosphere, the various fauna of our world began evolving to accept the aether. The trees grew taller and healthier, and the fruits they grew tasted even better.

Humans also began to evolve to accept the aether. In the same way, as we use oxygen to gain energy, the aether caused our bodies to become superhuman. But even still our bodies still needed a way to expel or use the excess aether in our bodies, so what other way than to give us superhuman powers to survive against these monsters?

The powers granted to humanity weren't hereditary and they also weren't like laser vision, shrinking, and flight they were elemental. Humanity would then go on to combat these beings with these newfound powers.

After years of fighting, a monster came through the rift like no other. It appeared human except for its featureless face and dragonlike tail, a monster that would later be named The Grand Architect. It had the powers of what humans would refer to as gods and with these powers, it reconstructed the rift. The rift was no more, it was now a gateway that connected the two worlds known as the END.

The monsters that were too big to come through the rift like dragons and titans are now pouring out of the END. But that would also benefit humanity, which grew even stronger in the face of those living disasters. This war fought by humans and monsters would last a thousand years, and in that beings who'd be remembered for centuries gained great renown. Those beings included legends such as the hero Jonathan Baal Carlenan, the dragon slayer Rachel Ashfrey, humanity's strongest Noa Fuimaono, and the blade god Uesugi Gozen. But such legends didn't go unmatched by the likes of the dragon king Qyrroilyg, the blood witch Rauga, and the parasitic swarm Ariloga.

Through many heartaches and despair, the Hero finally managed to put an end to the Grand Architect with the power of his concept otherwise known as a Unique Ability. The Hero thought that by killing the Architect the gate would close but he was mistaken.

While the war was going on the gate became self-sufficient, but thankfully he managed to seal it so powerful monsters couldn't crossover into our world. The Hero gave his life to seal the END, a sacrifice that would be remembered for centuries.

Now, in the year 2376 of the Carlenan calendar, the peace that was ushered in by the Hero gave birth to a whole new Earth. Even though the maps now look nothing like before and monsters are still active in our world means little to humanity these days. Humanity has constructed Kingdoms and Empires upon the ruins of the lost cities.

There are now even races separate from the monsters and humans such as the Erdees who live on the sky continent, Devas who inhabit the island Tartaros, Merfolk who live under the oceans, Nagas who rampage and cause wars as they please, and many more. Even though humanity has averted the world-ending catastrophe, their peace is at stake. Because the vengeful actions of a single being will usher in the Era Of Chaos.