Abysstale (Undertale Au)

After Countless Resets, Sans as been pushed to the verge of insanity along with his will crumbling he decides to change the Script of the game to allow others to remember the Resets that happened this goes wrong as after even more Genocide runs all the monsters have become insane due to the multiple resets, now they have become power hungry As It is now "Murder or be Murdered".