Its the year 3055 and literal hell has broken loose on the planet, the underworld got so overpopulated that Lucifer himself finally had enough and he issued a command to transform all the souls in hell into his demon warriors. There was one catch though, everyone in hell (including the men) were forced to become women succubus's because Lucifer had a power issue and did not want anyone to be able to overpower him so he made them all women so they could not overthrow his rule or give birth without his say so. He also made it to where they could only give birth to females and never males.
Once Lucifer's army was complete he then sent them all to the surface of the earth and literally rose hell on earth. The gods did fight back against this threat but they were no match for lucifer's numbers and they were soon transformed into hideous monsters at Lucifer's command. With no one left to oppose him he then started capturing all the humans on earth to be changed into more followers and help build him a nice monument on earth where he could rule with a iron fist. There was just one problem with Lucifer's plan though, he knew that humans were far more cunning and resilient than his immortal brethren and soon a prophecy came to light amongst them that someday a hero would rise up to vanquish him and revert the world back to the way it was before his tyrannical rule. He has been searching for years for this mysterious person and has yet to meet them until...