Once upon a time there was no war no strife of hardship to be found. Only happiness
This was known as the calm before the storm
An angel called Lucifer betrayed everyone, and alongside Lilith, they made the hell hole called hell. God had no choice to create an army to combat the might of the underground.
So after battling for long over a eon they came to a treaty, so they can join forces to face a new enemy called the unknown. A powerful race of humanoids with power to conquer both heaven and hell so they did they rained terror upon both heaven and hell until the two factions joined forces and slowly pushed the unknown back.
At the sight of being overpowered, the unknown used a bomb-like device to wipe out the entire existence of life godly or mortal
Even at the cost of sacrificing themself.
This however backfired as the bomb called the X event vanished into thin air, but not before draining the unknown of their power source the golden heart it got absorbed by the bomb before vanishing.
This left the race of conquers no power left to fight so they fled into the wide galaxy that span the skies.