To the beginning of the game(Narrative version)

After his birth, the Maker rose as the one true god of the world of Ego Breakers. Using his powers he rewound time for the Strongholds at the beginning of their adventure and ensured that this time everything went down right as it was supposed to: granted, he had to make a couple of little changes right at the ending (couldn't risk them destroying the actual Incubus Mundi and removing the source of his powers) and everyone had their epilogue and lived happily ever after. He witnessed it all, up until the moment the last living thing finally stopped moving and the universe reached its natural, cold end.

...He, however, was curious.

Was this really the best way History could have gone? He had always been an observer, an opinionated one, and he frankly saw hundreds of small improvements that could lead to reducing the suffering of millions, maybe billions of people. Better yet, he believed the Strongholds themselves hadn't quite reached their full potential during their adventure. Sure, they hadn't needed to since they had each other, but how would they look when pushed to the absolute limit of their being? He shuddered at the excitement.

And so, he would back time once more. He could only ever go back to the Bloodbath, since the Mundi had to exist to ensure his mastery over Ink, but everything past that would be fair game.

And so, another slightly tweaked adventure took place in a slightly tweaked world.

And then another.

And another.

Once more.

Just a little different.

What if the adventure had started far earlier in time? Or far later, in a global modern society?
What if guns were invented a couple centuries earlier? What if the laws of physics were just different enough to allow for intergalactic travel?

What if the Strongholds were on different sides of the conflict at first? Or for all its duration? What if they lived in different eras from one another?

Again and again and again, the Maker reset the world back at its bloody start to see what other experience he could yank out of it, take detailed notes about it and just do it all again, inspired to give it a different twist: many crashed and burned and he was forced to intervene early, but he would make a point of letting each loop play out until a true "final state" was reached.

Across these loops he noticed some... truths about the world even he had no power to modify. Not that he would have had any mind to.

The world had a small amount of load-bearing entities that just... had to be there in one way or another, at some point in history. He called them the Constants, and chief among them were the Strongholds and Ara. While their circumstances greatly influenced what kind of person they turned out to be it seemed that their core traits were simply part of this world just as much as gravity was. They also seemed to sometimes remember bits and pieces of their previous incarnations, with Ara being both more sensitive to these memories and more consistent as a person across loops.
The Maker and the Constants cannot directly interact or influence one another.
The Ink from the Incubus Mundi never vanished: this is the origin of the Sea of Ink, which is simply the Oniric Plane overflown with Ink after countless Histories.

At last, the perfect storm hit.

An Ara was born who

Remembered the truth of the world, and enough about the Oniric Arts to reverse engineer them within her lifetime
Had a support network that allowed her to work on her plan for years uninterrupted
Had access to someone who would trust her with their life and was ruthless enough to exploit that.

Due to her nature as a Constant Ara needed to set up a proxy to do her bidding, someone who she could guide into finally ridding the world of the Maker... And who better than her son and daughter, as a backup for one another.

Ara caused a world-ending scale event that forced the Maker to reset the timeline: she, however, managed to intercept that process and force her two kids, their Oniric identity completely scraped clean, into the new world that was being made: this caused Naluund to collapse on itself, bringing together people, cultures and landmarks from an array of different possible iterations of itself.

The game starts sometime after this process has completed, with The Protagonist reduced to a simple concept within the Sea of Ink.