Underswapsans Stories

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...

*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...

Nightmare had been so kind. He'd said all the right things and done everything perfectly to gain Dream's trust. When had the proposition turned from the possibility of...

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...

[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...

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...

He knows he'll be dooming them if he falls, but he's tired, his body is breaking apart, held together on a higher being's whim only. He wonders if there'll be another to...

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

(This story is not a part of the Alphatale Story) Blueprint, the son of Ink and Underswap Sans, had been put into a situation that has came to beyond his control. One mo...

An au sanses x MONSTER reader x au papyruses? Papyri? A fanfiction, it is not self-indulgent. So if your just lookin for some fanfiction to put yourself in, here it is...

It's been a few years since the events of Dreamtale. Dream is forced to constantly protect everyone's happiness against his brother Nightmare, and it seems nothing can s...

After helping horror leave the bad sanses, swap sans takes horror to an au where no one can bother them and where they both can live a peaceful life for a little while. ...

HIGHEST RANK: #41 in Random juѕt чσur dαílч hαppєníngѕ wíth ѕαnѕ αnd híѕ díffєrєnt "hím(ѕ)"! (this book is full of Sanscest, trust me) EVENT: [n/a] Book C...

Haré la traducción de esta serie de cómics que me gustaron bastante de los mundos alternos de sans y papyrus(y Gaster) en una fiesta de navidad xD Disfruten! (?) Psst, n...

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...

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

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...

(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...