3 billion years ago in another galaxy almost identical to G-S16(I guess it'd be called G-S17?) a dark purple cloud of nebula,birthed a star shining with light unrivaled. It's size was immense,far larger than that of an average star,and far more violent,it's light shining to the farthest corners of the galaxy. The storms of solar winds erupting from it's surface ravaging the closest planets birthed in the same cloud of dust.
Four of them, Caelus , Aureus, Pelagis and Lumina went on to grow life and civilisations on their surfaces,building a nation strong and united under the name Empire of the Unyielding Sun. The first planet,however,did not get such glory. Closest planet to the star itself was left a barren burning wasteland constantly pelted with ejected star matter and showers of radiation. None who lived in the four planets making up the Empire of the Unyielding Sun settled on this planet nor even bothered to name it.
But time passed,and a threat from beyond emerged. The Ender* ,bringer of the end of galaxies,arrived at the edge of this galaxy,intent on bringing down all life present inside it for being too "sinful". Needless to say,the nations rebelled. War raged on for years. The Ender had targeted Lux Iustorum to power it's weapon and demolish the galaxy. With no choice,the Empire had to stop the Ender no matter what with the assistance of other nearby nations.
That day,the Empire of the Unyielding Sun vanished from the galaxy's history
Long was the battle,attended by the finest of warships at the time and fought by the bravest and most skilled the galaxy has to offer. The skies of Magnata were chosen as the staging grounds for the Ender's final battle,where he was defeated in battle. But still,the battle was too close to be considered a victory. Nations collapsed from their ruined economy while some were reduced to one one-hundredth of their power. Fortunately,G-S16's twin galaxy would not see such an event happen in the years for the galaxy as a whole to recover.
Unbeknownst to the powers of the galaxy,the Ender had left a shard of his weapon's Engine on the unnamed planet,willingly or not. The shard,now referred as the Seed,has given birth to the Crymnant Genesis. It has proliferated for hundreds of thousands of years through the intensity of Lux Iustorum's light,covering the barren surface and digging deep undeground to it's core. These crystals eventually grew sentience,albeit a very primitive one,and had named their planet Magnata and named themselves as magnaspawns. Unfortunatey for them another threat of similar caliber as the one that brought down the Empire and indirectly birthed them was about to occur again.
Another Ender had come back to launch another assault on G-S17, this time with a much more powerful but compact fleet,a single fortress capable of turning everything to dust in minutes and several smaller ships for defense. The Entropic Vortex and the second Ender had come to end G-S17,and the nations were unprepared due to the previous factions having died off and the information of the war lost.
Despite the fortress' seemingly indestructible shield and the Ender's almost infinite power,every nation once again banded together to take down the Ender. They had constructed a weapon of pure destructive potential to crack the shield surrounding the Entropic Vortex's power plant,the Engine. They lured the Ender himself to battle outside his fortress,where the Starlit Javelin,G-S17's quasar of hope fired upon him,shattering his body and releasing his stored energy.
The flash created was blinding,the blast more powerful than anything ever seen,directly hitting the shield,but still the Engine's shield did not crack. Instead,the surrounding structure of the Entropic Vortex was obliterated and plunged the Engine into Magnata ,fragmenting the planet and all it's magnaspawns. The beams of energy released from the Ender's death brought upon catastrophic effects to the space surrounding Lux Iustorum,creating holes to almost all the dimensions that have been discovered. These holes would soon appear in it's twin galaxy,G-S16 with the most concetrated anomalous area being the Sephaelus sector in I.Q 4.
The aftermath reached Caelus,the furthest planet and stretched to the very core of the galaxy. All 5 planets disappeared and everyone present were lost,but they succeeded in stopping the second Ender,but the damage is done. The entire galaxy of G-S17 was filled with dimensional rifts,with some mirrored in G-S16. The Engine on the other hand now resides in the core of Magnata somewhere inside one of the dimensions. Lux Iustorum survived the blast miraculously but were launched through a rift along with most of Magnata's shards and ended up in the Sephaelus sector of G-S16. The star seemed to have grown brighter. The shattered fragments of Magnata formed the Crymnant Genesis. The chaos of the Sephaelus sector has become an important place for the magnaspawns to the point that they settled to make it a safe haven where nobody will bother them while feeding on the hidden light within the chaos.