Eternal Father
A shadow had begun to spread, the specter of the Sith haunting their former worlds. It began at Dromund Kaas, a great show of force that smashed the Ashlan Remnants still clinging to their precious light, scattering them to the stellar winds. New Kaas City was liberated both from without and from within, a great pogrom against all those who turned against the Sith raging through the streets, hundreds brutalized and left to bleed amidst the churning maelstrom. When it had all settled, the Dark Lord Carnifex arose like a great phoenix and seated Himself upon the throne of Kaas; declaring that an era of Revitalization had at last begun.
Styling themselves as Revitalists, these embolden Sith and their non-Force allies struck out from the Kaas system. Acts of terror were common, displays of cruelty the status quo. Any who displayed the slightest hint of hesitation were singled out for reprisal, but the greatest violence was reserved for those who blatantly rejected the Sith's offer of revival. Chiefly, those who benefited from the Ashlan's hold on the region were assaulted harshly, but even those who tolerated the Ashlan's presence were declared apostate and made to atone with blood and tears.
As the whirlwind spread ever further, the true architects of Revitalization turned their eyes deeper into the Holy Worlds.
Their gaze settled on Korriban, the tomb-world of their ancient forefathers. For too long had it suffered under the yoke of light-drunk heretics, even more greatly than Dromund Kaas or any other nearby system. For Korriban was more than a world, it was a symbol, the greatest holy site in all the Sith canon. The Ashlans tried their best to destroy this world, but they failed miserably. In their failure, they turned to suppression and iconoclasm. The Valley of the Dark Lords was ransacked beyond recognition, its mighty tombs unroofed, and it's greatest monuments toppled. In their place arose icons of the faithful light, the greatest indignation.
The Dark Lord looked down upon this perfidious mockery from the bridge of His flagship and glowered fiercely, His countenance deadly. "Uproot these treacherous edifices, let their ruin mix with the red blood of Korriban. All the world must be scoured clean, so that a new age can begin."
His word was given, and darkness returned to Korriban.
I. Scour the World
As the Dark Lord decreed, Korriban was to be cleansed of impurities. All that the Ashlans had wrought shall be unmade at all costs. The Sith could then remake the world in their image once more, stretching out their hand and leaving their mark upon the red steppes like their ancient forebearers.
II. Multiply and Replenish
Much of Korriban's pre-Ashlan population had been forcefully relocated to other worlds, and cities like Dreshdae had been neglected and left to ruin. The diaspora must be reversed, and those who had been driven away allowed to return and resettle. Aid in the reconstruction and oversee the distribution of land and estates.
III. Dash Them Against The Stones
Though Dromund Kaas had been the site of the greatest concentration of Ashlan Crusaders in the region, they were not the only one. Some yet cling to the wild wastes of Korriban, hiding in caves and canyons, eager to spill more blood in the name of their debased heresy. Exterminate them.
IV. Do Your Own Thing
There's plenty more to do around Korriban, find your own path.