Genesis: Era Of Redemption fantasy romance

"If it is peace you seek then close your eyes and pray you are reborn in another world...because this one is broken beyond repair."

Following the spawning of demons by fallen angels to wage war on heaven, mankind found itself caught in the wake of a holy war. To survive, they shed their humanity by contracting with demons, becoming shape shifters, blood suckers and spell casters. When the war ended, it left the world divided and those who had sold their souls were shackled by an agreement between heaven and a newly created hell, which made them incapable of harming the pure. And for a while, the world was peaceful again. But that changed when the gates of hell creaked open years later. Cause? A little girl with an inherited curse and her brother, who is recognized as heaven's greatest sin.