A Dusty Nightmare (A Continued Nightmare and Dusttale Crossover)

On Mobius...there are 3 creatures. Mobians, Humans, and Monsters. The Planet Mobius, created by the Highest. Every single living things on Earth, created by Exetior, the traitor of the Highest, and the Demon of Sharpness.

Both the Highest and Demons have different goals. For the Highest, erase Mobius and recreate it again. The Demons, to demonize the entire population of Mobius to stop the cycle of erasure and recreation. But one thing in common...is the genocide of all the races.

Sans...he has been through countless genocide runs...all because of a single human, who kept resetting just to kill off his kind again. Clouded with insanity, hate, and rage, he murdered his own kind, committed his own genocide, and used their LV, to kill the human who had started it all, and reset, before destroying the button. He had his brother back, and yet, the LV that he had gained from the previous timeline still remained with him, along with the powers he had taken from the boss monsters he had killed, and the ruthless and cruel hallucination of his brother, who refuses to leave him be.

Now...another genocide is taking place, but this time, it is not simply for Monsterkind, as they have not been discovered yet. No, it is also now for the Mobians and the Humans alike. Sans...will meet with a certain rabbit Mobian, and it is up to them both save both species from genocide...of the demons of mystical and powerful origins...the Demons...and the Highest.