"A long time ago, the Great Meteor Shower destroyed most of life on Kahlla. After much grievance and sorrow, all species including us humans signed a peace treaty to unite and build back the world we once had. In only 100 years, peace and unity propelled our world into a more advanced and developed world than ever before. But peace did not last.
The Demons, on an excursion to study the remnants of the Ancient Meteor Shower, discovered a powerful source of energy that only them can absorb. This energy makes them much bigger and stronger than before. Having been the sole side to have found the precious energy, their army and their greedy nature grew uncontrollably. They planned a coup and attacked all other factions for control of power...
They soon gain control of most of the lands and resources of our world, pushing all other factions to very small areas. Finally, The Humans, The Elves, The Florians, The Elementals and The Beast had to unite to form an Alliance to defend against the Demons.
The Alliance soon discovered the source of power that fuels the Demons Uprising. It turns out that, hidden inside the remnants of the meteor is a valuable resource that the Demons overlooked. We called it Meteor Remnant Essence (MRE). Humans and Elves, with our high intelligence, have been able to utilize this material to forge weapons powerful enough to rival the Demons. With these incredible equipment, we can finally defend ourselves and gain an edge on the battlefield against the Demons. That, my child, is the start of the Knight War..."