In the dawn of time, humanity was blessed with extraordinary abilities known as "Tenzen." This power gave rise to the art of Sorcery, elevating humans to unprecedented heights of power and dominance over the earth's creatures.

For eons, humans lived in a world where sorcery was a part of everyday life. They used their powers to build, create and explore, wielding their powers to achieve greatness. 

However, a thousand years ago, things took a dark turn. Mysterious, non-human entities emerged, inhabiting the land and preying on humans.

These creatures, dubbed "demons," sparked a brutal war between humans and the demonic forces, causing great destruction. However, despite their valiant efforts, human sorcerers suffered heavy losses, unable to counter the demons' overwhelming might.

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  Then the unthinkable happened: the arrival of the demonic army's archon, "The Great Aidra." He was unlike any demon humans had ever seen. This powerful demon king wreaked havoc on humanity, annihilating the largest continent and its inhabitants with a single attack.

The aftermath was devastating: two-thirds of the human population perished, and 50,000 sorcerers vanished without a trace.

The day of Aidra's manifestation became the darkest in human history, and after that day, Aidra was never seen again.

Five centuries after Aidra's attack, humanity teetered on the brink of extinction. In response, sorcerers worldwide united to form the World Association of Sorcerers (WAS). This organization united sorcerers from all over the world, giving humans a fighting chance against their age-long enemies.

With its headquarters in Berlin, Germany, and branches globally, humans began to fight back. A new era of hope dawned, promising an end to the carnage and torment.

But despite the progress they'd made, lingering mysteries continued to haunt the minds of sorcerers: where was Aidra, the demon king? And what was the truth about the mysterious "Eschaton".