The cosmos is vast place there many verses, some limited some infinite with every single one of them posses their own their gods.
Gods who can create any reality or any timeline without even moving their finger just by existence alone
As the concept says everything has opposite side in this cosmos if there are God then there are demon as well.
The world continue to expand and this creating new branches of infinite verse with their own gods coming into existence.
The world is balance but balance sometime cuase distraction. In one reality if everything is good in the same space but different timeline everything is bad there are every single possible timeline.
One particular day two being came into existence to stop the war or to destroy every single Outerverse there is. Both are opposite one who is concept of positivity then other is concept of negative both too strong even gods can't bend this concept as they are also just pawn in this game of cycle.
In one universe two being born one girl born in a poor family, while on the side a Boy born in prestigious family.
On the same when they open there eyes one was dark while other was white for some moment and after that both return to normal, girl's eye's being blue like beautiful ocean while boy's eye's being purple like venom.