Sanses included will be...Classic, Swap, Fell, Swapfell, Ink, Error, Dream, Nightmare, Dust, Killer, Lust, Horror, and Fresh. Please be aware that the pronouns used for the reader will be she/her. I just want to make sure that people knew that. Please do not ask for any other Sans AU to be written. The length for each Sans will vary; some being short, some being long. I will not write any NSFW chapters, there will only be swearing and possible topics of sensitive subjects. Please know that I will be writing some of these characters differently than how you would normally see written. For example, Nightmare Sans will not be used in the goopy form, his original form will be used. Aka, Passive Nightmare. Also, there are references ranging from movies to anime, so feel free to spot them if you want. Started Writing: April 09, 2020 Finished Writing: ----

Underfell Papyrus is viewed as one of the most ruthless monsters in the underground but what is really under that tough persona? Thanks to Tamqul on Deviantart for letting me use their awesome artwork as the cover!

I couldn't just leave you guys there! Enjoy the book! Feel free to request