From a universe that may seem like ours, but not quite, there existed but one continent on the planet Earth at the beginning of its time: the land of Pangaea. In this land, man and woman lived without the hatred or jealousy that would cause society to be disrupted. God gave them Paradise.
The angels that served God were separated into two factions after the birth of Pangaea. One faction was loyal to God and loved man and woman as much as God did. But the other group of angels hated the fact that humans had paradise while the angels had to serve them. They were led by a being that would have been known to us in our universe as the Devil. He rallied these angels to join in his desire to overthrow God and conquer Heaven and Pangaea. This rebellion sparked the War of Heaven.