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RE: A Guide to Demonic Ascension

Reais—a shattered abyss where thousands of Demon Lords wage endless war. A realm born of chaos, now destined to birth something far worse.
Punished for disbelief in a mortal life, a soul curses Deities for its unjust imprisonment and psychological torture. Shackled, broken, and left to rot—until witless demons set it free.
Now, a vengeance stirs.
Do the gods see what is coming? Do they fear the storm rising from the abyss? Can they stop it? Can they withstand the incursion, the subjugation—annihilation?
The answer is simply: [Nil].