I want to write a trilogy and have it set something like this. Inspired by demonbound in the short story fantasy section Lucifer and his brother are both princes and will take the throne when they are ready and God will step down. Lucifer is the main character here, and he falls in love with a new soul that recently arrived to heaven. But he also resents his father a little because his father seems to power hungry. His brother kills lucifers girlfriend and makes it seem like God did it. Lucifer then gets his mentor and another friend of his to join together and kill god. They don't think they can do it alone so Lucifer goes to his brother to help him. His brother says he will, but in turn tells God of the plan. Lucifer is then cast out with the other two into the void. Leaving Lucifer with a burning hatred for God, and his brother. His brother also becomes the new God for saving the father and the old one retires. Because Lucifer was so powerful as a prince and with the help of his two friends the void where souls go that aren't worthy has like a big bang affect and turns into hell. A vast burning wasteland. Then in the second book they are slowly preparing to be able to get outside of the void, and to do this they need enough souls inside hell, and enough supporters devil worshippers/sympathizers to be let out. So one of his greater demons (one of the two friends from the first book) is able to leave, but he doesn't have a body. Lucifers friend converts people with more "evil" means by possesing people and tricking them. Either making them do evil deeds so they go to hell for example person A kills person B person C loved person B and then kills person A. person C goes to hell. Or, doing something such as converting a priest and spreading the word of Lucifer so more people follow him. All while a person with a similar goal, but on Gods side is trying to convert people to gods side. He is Gods new son Jesus. Jesus basically does what he did in the bible. Healing people and such. Eventually they both convert so many people that two religions form, one worshipping the devil and the other worshipping god. They go to war, the devil wins. With Lucifer now having so many supporters and souls he is able to step out of the void. In the third, the world is burning and corrupt it is run rampant with demons and any other creations Lucifer can conjure up. his ultimate goal is to get back into heaven and kill the old God, and his brother. For casting him out, killing his love and eternally scarring him(making him look devilish, with horns and such) and branding him as evil. I haven't really decided if he succeeds or not. So, should this be set in the bible like story with God, jesus etc. Or should I make my own world? Skipping the hell part and keeping it as the void. Also heaven just be the afterlife. God is like a superghost that gains power by people praying to him and worshiping him. Lucifer is similar when he goes into the void.