Hell has Risen to their peaks, Sinners and Demons are rising, in search of a Key to another Dimension. History has it, the Key has the power to create a new balance between life and death. The key to making a new world for Spirits, much alike Hueco Mundo and Soul Society. Demons have taken the initiative to destroy all that stand in it's way. The keys to the new Dimension are scattered across the worlds, Three in each world, including the world of the living, Soul Society, Hueco Mundo, and Hell. The Demons have already obtained the 3 in their world, leaving 9 more keys remaining in the other 3 worlds.