Prologue
In ancient times, the Earth was a peaceful planet, devoid of war or strife. Though there happens to be strife amongst the nations, it doesn't last long( not on a large scale).
On the first day of December in a certain year which seems not to be recorded in the annals. A war broke out among the celestials in the upper world.
The thunder rumbles in the sky, and the wind did not cease to howl. the heavens were dyed black; as if mourning for its beloved Earth.
The moon seems to have relocated to another planet.
The Earth was stopped from moving its rotation around the sun
The world was cast in darkness for what seemed to be tens of years. In the hundredth year of the darkness-filled Earth, a space was torn in the sky, and there seems to be something coming down from the tear in space. The 'thing' was cloaked with a blinding light as it made its way toward Earth.
As if waiting for this 'thing' to arrive, the moon came back from its long vacation, the Earth was given a free pass to rotate freely among the other planets traveling around the sun.
Since the Earth was returned to how it was before, many people were able to see the thing that was making its way down to earth. It was a sword.
Boom!!!
It was plunged into the Earth which resulted in an earthquake. The Earth unable to take the rampaging energy surrounding the sword was fractured into several fragments.
Many lives were lost on that day due to the earthquake, parents lost their children, and many children became orphans.
Confusion rules the day, but it was also a blessing in disguise.
With the tear in space, spiritual energy seeped upon the Earth.
But a sliver of demonic energy also makes its way down to earth, the demonic energy does not affect humans much due to the high level of intelligence and mental resilience that they possess.
The wild beast due to its low level of intelligence was beguiled by the sliver of will inside the demonic energy.
"Bow to me and I will make you rise to the pinnacle of this world, obey my commands and you shall inherit this world"
Though those lines of words sound awful somehow the beasts were unable to come to their senses, and they were left with no choice but to serve the demonic silver of will.
The spiritual energy became the source of energy (oogun) for mankind, likewise, the demonic beasts also hunt down the humans to devour the energy stored in their bodies. And this brings about the war between humans and the demonic beasts for thousands of years.