The year is 3016 on the continent of Avalon. Roughly, a hundred years have passed since the final battle between the conqueror of West Avalon - the Demon King Abaddon - and the Alliance of Men, Elves, and the other five, dominant races. It is a time of peace and prosperity but even death won't stop the ambitious. What was once, shall rise again to claim back its throne, setting a new challenge for the inhabitants of the West, but for itself as well. Will the Demon restore his former glory or will he be destroyed yet again, this time for good. Invictus tells the story of the Demon King's return from ruin and his ambition to restore his power and reclaim his seat as Kishsharum - King of the World.