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...

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

"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...

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...

(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...

You woke up on bed of golden flowers without having anything to remember. Going to an adventure where you met with many monsters to go home. Easy, right? Not really, act...

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...

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...

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...

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

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...

-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...

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...

[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...

[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...

Most of them are Sans and Papyrus (no surprise) I hope you enjoy!

Mettaton thinks you look absolutely fabulous~! Come and read this book so he can give you some love darling~!

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...

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...