Down with the Sickness

(This is a fanfiction. All credit goes to Disturbed and all art work goes to the owner)
Before the existence of the mortal realm there were only 2. The God's Realm where the mortals lived and lived forever (unless killed). The other realm is Kai Sahn. It is the Underworld where an Infinite Army of Demons live and continue to grow. Souls that live there are forced to fight them until their souls are all consumed. Despite this, the Demons remain loyal to the God of Evil. Once he ran out of souls in this time and invaded the God's Realm with not just Demons, but the Giants and, the God's old enemy, the Endbringers. The God's realized the threat and knew just a normal mortal army wasn't enough. The goddess Phoenix proposed the idea of the Morbus. There were several potential choices but as the logical choices ended up being assassinated. The one you'd least expect would be the difference between total anihilatoon or survival. His actions will change existence forever.