Undertalexreader Stories

'When I was 13, I killed someone. By accident of course... It was the day I found out I possessed some type of power.' You kept it to yourself for years until one...

(Sans × Gender-Neutral! Parent! Reader || Slow Burn) Moving from a backwater town to a city bustling with human and monsterfolk alike, some things begin to change both f...

A story of a human-like doll and her owner Undertaker.

COMPLETE These feelings were just a bug. A bug Alphys couldn't figure out. That's all that Mettaton knew, because after all, he was a robot and you were a human. He ran...

Y/N... She's Genderbent sans. She knows only Ink and Error. She's everything you'd think you'd find in a genderbent sans. Instead of blue magic she has pink. Instead of...

"You shall seal the blinding light light that plagues Human and Monster dreams You are the vessel You are the Hollow Knight" •Somewhat of a reboot of Someth...

♡Hello Everyone!♡ Just as it states in the title, I will be making Oneshots for you all! Please feel free to request and I will get back to you. Request page is the fir...

These One-shots are more like... "fluffy" and funny ones. Of course there'll be some Yandere or something if You like them~ And I'll try to make as many charac...

--Long ago, two races ruled over Earth-- --HUMANS and MONSTERS-- --One day, war broke out between the two races-- --After a long battle, the Humans were victorious-- --T...

Hate sprouted deep within your heart from the moment you grasped hold of his intention and just etched further in his first attempt of escaping. His second was a success...

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...

Credit to dongoverlord on Tumblr for the cover art! There are lemons (NSFW chapters) and they will be labeled so you can avoid them if you're not into that shit (or fi...

[COMPLETED | Undertale x Reader] * There is another one of these collections of the famous game "Undertale" with the reader in it. * It fills you with determin...

[2nd book] A Yandere Underfell Mettaton x reader story After Y/n falls down, they meet someone to help them throughout their way back home. Somehow they become very good...

This is just a collection of Undertale-themed one-shots that go along with the plot of my Sans x Reader fanfic, "When Two Souls Meet." It's a community project...

Well... Obviously this is a Papyrus X reader.... So yeah. Interesting stuff might happen. Your human... And I may update frequently, but then at times I wont... So yeah...

You were always a curious child. One day, your curiosity took you too far. You lived not to far from a mountain, MT. Ebott, and always wanted to see what was on the top...

Yandere Under verse x Reader. Reader is from my au, Memorytale. Under verse does not belong to me, it belongs to Jael Penaloza. Any au's mentioned or images used do not...

Monsters always fasinated you. Ever since Frisk broke the barrier and freed the monsters, humanity didnt take it too well but they are slowly getting used to it. Slowly...

A world ruled by judgement, mafias, and violence. Y/N wants nothing more than a simple life, even though she was born as the daughter of a higher class. She has a secret...