*Ink finds a book about Undertale the original Sans lives and the only girl skeleton in all of the au's and Ink reads it and the book says that the original Sans only have one HP and really strong magic and nobody can find the original Sans's au cause it's really hard to find*

There are Ink the protector of au's and has no au, Error the destroyer of au's and has no au, Swap from Underswap, Dream from Dreamtale, Dust from Dusttale, Killer from Killertale, Horror from Horrortale, Nightmare from Dreamtale, Lust from Underlust, Fresh from Freshtale, Geno from aftertale, Reaper from Reapertale, Outer from Outertale, Cross from Xtale and Fell from Underfell. I don't know the names for the other au's.

You are Nightmare and Nightmare is the leader of the bad guys and the guardian of the negativity apples and the twin brother of Dream.