The Saga of Slime and Devil

After years of her persistent lack of faith, God, or as Tanya Degurechaff calls him, Being X, finally decides to let her die so he can banish her to the deepest pit of hell he has. However, something goes wrong, and Tanya ends up in a new world, filled with Demon Lords, Primordials. With a whole new world to get her grasps on, this devil turned Demon now has to adapt and overcome.