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.

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...

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...

Everyone craves the light. It's what keeps them going. people will do anything they can to keep their light shining, but what will they do if the light extinguish and wh...

she only wanted to be loved, but when she had it. she saw it and decided she didn't want it anymore. (female reader, i used her/she pronouns)

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...

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...

Trauma is a powerful thing, and not something to be taken lightly. Especially if your "best friend" is the cause of it. But friendship, understanding, and love...

One-shots about the superstar robot and you, the reader. There will be fluff (mostly), some steamy ones, and possibly more. I hope you enjoy reading these! #1 number in...

Come on, get caught in the Spider Dance, dearie~ This is my first ever "x Reader" type story. I'm just testing the waters, so don't expect something too great...

[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...

-Discontinued and Unfinished- Skeleton brothers Fresh and Unfresh have never gotten along. Especially when it comes to sharing things. So, when both of them meet (y/n) a...

Y/N was a girl living with abuse around every corner and called insane at what she saw that one night. Saying she saw a Reaper and a Demon fighting on the streets, no...

A series of semi-realistic scenarios including a handful of Undertale characters. In otherwords, stick around. ... Please.

[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...

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...