... Long ago, when all things were one, and one thing was all, there existed only infinite darkness; some know this darkness as The Void, some as 'Space,' some as The Chaos, some simply as The Abyss or The Unknown, The Nothingness or even 'Eternal Darkness.' Though, in this darkness, when all such calamity found its order, that order became one light; a light so bright and so large, nothing could compare. This light was known as Tensei, giving itself a name, and was known as the first Flame of Eternity, or in common terms "Soul, Free Will' or 'Pure Energy'. With this light that was this being of pure and utter Free Will, his will was done in the way he saw fit, thus birthing literally something from nothing. He, which created energy as he saw fit, birthed the first Dimension known as Dimensia (hence, why they are called 'Dimensions') and lived in that land in peace. It was his world, and his alone; where there existed nothing but him and his land of utter beauty, devoid of the nothingness that was that void of chaos. He created many different realms, infinity upon infinity upon infinity of multiverses, omniverses, dimensions, all connected to the first known as 'Dimensia.' These were the different sections of this realm, which he wishes to traverse at his will. Each had different laws, possibilities, probabilities, etc. that he enjoyed having fun in by himself...
However, every light that starts out has its darkness, even if they aren't aware.
It did not take long for this being, who had, could do, and simply was everything and all things to come to grow bored of his existence. Being all things, he simply existed alone in a world of his own, a perfect place that he could share with no one but himself. He grew lonely, and wished to share this place with others who would appreciate. Little did he know, his wish was his will, and his will was always done.
With such loneliness, he grew sad, and to give himself company, he split himself into two beings; one was he and the other known as Lilith. Lilith shared everything with him, including himself and his powers, and thus, he was left as half a soul; with part of him light and the other dark. His other half was the same; part light, part dark. This came to be known as 'Yin and Yang.' They lived happily for a while, and bore six children; Three were Flames of Eternity whilst the other three were beings of physical shape and form; hollow and devoid of light. Having no light, they sought to consume what they came in contact with to fill the void within themselves, which was birthed of the darkness of both Tensei and Lilith. Beings with no light, he did not consider his own, and through his own ignorance and fear of the 'Unknown,' he banished all Darkness in his realm of Dimension from the Light, and extracted the Light (or Soul) that existed within Lilith and kept it as his bride, rejecting the rest of her. This separation had the light known as 'Shinrei,' whilst the other as 'Li-Grim.' With his absolute law of banishing all darkness from his realm, he unknowingly separated that darkness that was himself, as well, and split yet again into another two beings; this time being only his Light (Soul/Flame of Eternity) and Dark (Devourist/World Eater). So he, fearing his own darkness and unknown, banished it to beyond where the light touched as well, completely rejecting the fact that such a being that held no light could be anything that was him. This realm, which was how it was known as 'darkness; that which is devoid of light,' became known as 'Guf,' and eventually, spawned into the being known as 'Allsgrim, the Realm of the Devourists.' Allsgrim, who was Tensei's darkness, existed with Li-Grim, who was Lilith's Darkness, in the world of the Devourists, with no light and pure unconscious, doomed to forever mirror the realm of Dimensia's light with no understanding for what they did. Never to see the light.
Though Tensei, who then became known as 'Shinsei, the Pumpking' now existed again as ONLY light that reached out to everything alongside his wife, which was also pure light known as 'Shinrei,' all things that it did not touch, which were considered this light's complete opposite, or 'darkness.' The light knew not of the darkness that opposed its realm at first, and when it was found out that all things that existed outside of the light were the 'opposites,' Shinsei took this to be 'opposition' to the light, and knew this to be its sworn enemy instead of the part of itself that it did not shed any light on; his own self. Deep within, he had no shape and no form, he was merely an enigmatic and ambiguous light, pure will and pure force, pure energy that produced more energy infinitely that was all things, and thus had no definite shape nor form. He was blinded as to what he looked like, and could not recognize that darkness was the image of himself within.
Afterwards, he was left only with his three children, Pumpkinhead (Also known as Nebulon), who was the eldest and successor to his father's power of Destruction; Tigen, who was the second, and was successor to the power of Creation; and finally, the youngest, Pumki (Also known as Lumiel, and later Luminon), who was successor to the power of all the Light/Stars, with the power to 'Connect With Light and Love'. Tensei appointed Tigen, the middle child, to be the one to succeed him in the throne, as opposed to the eldest, who should by default hold the 'birth right' by being older because of Tigen's power to create, whilst Pumpkinhead only held the power to destroy. This brought rivalry between the brothers, though Pumpkinhead obeyed his father and watched over his little brother. And, all was thought to be at peace. These being became known as the 'First Ancentral Race.'
However, because the world of the Devourists was a completely parallel world to that of the Flames of Eternity, they were doing the same things. The Grims, as they are called for short, held the same power of creation that the Lanterns, as the Flames are called for short, had, though instead of using the power of the Soul, they used the power which was 'Able to Create Something Out of Nothing,' known as Magic. This was because the Grims existed without the light of knowledge that the Lanterns had, and thus though they were capable of the same things, they knew only that it happened out of thin air, since they lived in a world devoid of all things opposite the spectrum of the 'world of all things, Dimensia.' Allsgrim and Li-Grim bore three children as well, known as Grimlock, the eldest and most powerful, Grimnyzmal, the middle child who also held love for others and, and Grimro. As they bore these children, their powers were split in half, and the two were then known as 'Grim and Grimnis' from then on.
Where the Lanterns could simply create new energy as they saw fit, the Grims had to divide their energy and use parts of themselves to create something out of the nothingness that they had, which was why Allsgrim and Li-Grim became Grim and Grimnis once they bore children, having evenly divided themselves among those three. This is because where Dimensia is ethereal and of light, Allsgrim is physical and thus has a set amount of energy only defined by the power of the being who ruled over all that was such nothingness, Allsgrim. Quickly realizing this after they bore their children, Grim decided to take the infinite energy that existed in Dimensia for himself, and used his power of Devourism to start to eat away at the light, drawing more power to reproduce and create more children. He and his family continued to eat and eat, consuming all the energy they came in contact with and leaving absolute nothingness, a void exactly the same as the first darkness, against their will. The 'Magic' that they used required such energy, yet left only destruction in its wake due to the nature of those who used it. And eventually, that darkness that was banished from the light came back to bite the light in the ass... Literally.
After separating all the sections of Dimensia, labeling them as 'Dimensions' and 'Planets' and other things separated by the vast blackness of space, the Devourists finally had enough energy to make their way back to the main hub of Dimensia to consume Shinsei and have infinite energy. What they did not understand was that this was a longing for the separated Light and Dark to be joined back together as the one being that they once were, but now, they were too far separated to understand this, and instead, fought. With all his might, Shinsei protected Dimensia as best he could, but at the cost of this, his own darkness, Grim, had to eat away at his own power. Since his own power is what held up Dimensia and all other things created of his power, the weaker he grew, the more unstable all other things became, until eventually, they were at the point that they would collapse upon themselves and be consumed by the infinite darkness.
To prevent this, Shinsei gave his mission to his son, Pumpkinhead, who was to protect Tigen at all costs, especially since he was a weak flame that barely knew anything. He was a Will that wavered, and did not know of his power, and thus, could not do much for himself. Pumki, on the other hand, was tasked with keeping the Darkness at bay with the Light of the stars, and helping to create a collective consciousness through the connection of light and love to ensure that all things were not consumed. So with the last of his strength, he threw Pumpkinhead, Tigen and Pumki into the Dimension Gate where all things were connected still and told them to find the place that was the 'Last Hope.' That place was The Lost World, the Center of it All; more specifically, the Village of the Nightmare. Afterward, Shinsei halted all things from progressing to ensure that nothing would change until The Lost World and his children were ready.