Underswapsans Stories

[Prolong] My name is (Y/N). I have experienced many resets, so many I have lost count. The only people who remember are Sans, Flowey, and me. The monsters down here are...

Moved from AO3 because of reasons! "You are the only maid (or worker in general) that serves for the Skeletal Household. It's a skele-ton of work, but you manage by...

*Just a normal fgod fanfiction. *...or is it? Error gets cornered in Outertale by the Star Sanses. He missteps and falls into the VOID. Blue tries to catch him, but topp...

this is a love story between swap sans and the reader, the reader falls runs threw MT.Ebott trying to escape her twisted guardians when she is shot into a massive hole...

Cherry, an unusual swap-sans type, draws the attention of Dream and Nightmare when he is left the only survivor in his underground. With his Papy's gaster blasters follo...

A book of Dreamtale oneshots I started writing in 2017 that gradually turned into an actual story by 2020. The writing isn't great at first but I assure you as the onesh...

When Dream loses his memories after receiving severe head trauma in battle, Nightmare and his team choose to take advantage of the situation...

being pulled away from your home while your simply enjoying some alone time can be annoying and to make it worse you have no say in the matter as 2 teams keep throwing...

(ᴠᴀʀɪᴏᴜs sᴀɴs ᴀɴᴅ ᴘᴀᴘʏʀᴜs ᴀᴜs x ʀᴇᴀᴅᴇʀ) ||ᴀɴᴅ ᴛʜᴇɴ ɪ ɢᴏ ᴀɴᴅ sᴘᴏɪʟ ɪᴛ ᴀʟʟ ʙʏ sᴀʏɪɴɢ sᴏᴍᴇᴛʜɪɴɢ sᴛᴜᴘɪᴅ ʟɪᴋᴇ "ɪ ʟᴏᴠᴇ ʏᴏᴜ."|| Life was merciful enough to grace you...

Just Sans X Reader No Lemon Cover by my homeslice tkdgirl222 I don't own any of the characters in these story Don't kinkshame me I know your here for the same reason I w...

After a bloody battle with Ink, Error teleports to Outertale to jump into the Void. Ink and Dream followed him to continue the battle, only for Dream to accidentally fal...

Since there is no or any "bonely hearts club x female reader" I will be the first one to do it... so I hope you enjoy this book.

"There IS worse fate than death" The cover isn't mine. Just a few warnings: -boyxboy -girlxgirl(maybe?) -blood -su¡cide(kinda) -death

I'm a simp for him and not many people make an x Muslim Reader.Since I'm aalso a muslim myself,so I make my own story.Anyway enjoy I gues. =D

Ever since dream ate the black Apple and got corrupted things started to get harded on him then before The remaining members of the star sanses just won't leave him alo...

Cover by @sergeantmisos on Twitter. Likely not to be updated for at least a few years. So sorry <3 undertale and its aus aren't really something I'm fixated on anymor...

HELLO EVERYBODY this is a new story! this story will be a killermare story but during the process of it there will be other ships with killer and in the end I'll end up...

Y/N, meets a new coworker that changes her life forever. A monster, doing his best to make a living after moving out of the underground. Sans is this ecstatic, cheerful...

One day From the window of his workplace, Error notices Ink trying to sell a few of his paintings on the sidewalk across the street. At first, he thinks nothing much of...

What will happen when ink plans with the other sanses to create an AU that will kill error if he destroys it and error doesn't act as planned? What will they find out ab...