Undertalefanfic Stories

" Never have I ever thought that something so important like our coding could be affected by the balance. " ...

Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapp...

It's only been a few years since monsters have been released from their underground prison. In some towns, monsters are welcomed with open arms. Others? Not so much. Y/N...

Au Sanses x Reader If you like edgy and scary Sanses, and romantic and fluffy and edgy scenarios, then this is the book for you!!

Y/N was a normal teenager who gets bullied everyday, she has only one friend who called 'Frisk' one day they decide to climb the mountain but then... "I want you to...

(Completed) *my first fanfic I made* Based on a beautiful story called, "overgrowth" if you haven't read it I recommend you to please read it...it's really em...

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...

You've lived your life without ever knowing your parents. Despite that you dream big because you don't have much; aiming to become a famous singer and prove anyone who h...

It's been a few years since Y/N started her family. Without Honey, she made due with what she had; that being the cafe, her brother-in-law Blue, and her two twin sons. O...

Nightmares gang were at his mansion chilling out when they hear three loud bangs at the door, they opened the door to find the star sans', lead by Ink, in floods of tear...

When cardin revealed jaune's transcripts to everyone in beacon he was bullied everyday except Team RWBY, Team NPR, Team CFVY, The arc sisters, Saphron's family, Ozpin, G...

This is a story before the last human fell around the time Chara was still alive and well. Humans were not being hunted till the adopted prince's passing, however with a...

Chara and Frisk has been with each other ever since Frisk has fell into the underground.. and Frisk finally wants to tell chara her feelings, will chara accept Frisk's c...

One day, Sans fell sick. His sickness came out of nowhere and it cannot be cured no matter how many medicines Gaster gave him. Because of the sickness, Sans stayed still...

Oki so my story will suck just gotta tell 'cha so the story is about... Error and ink were childhood friends because you know they only knew eachother in the anti void...

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

❝you're so hecking precious when you ѕмιℓє❜❜

A story of a young Ink discovering what it means to be a Protector of Creation, as he finds his place in the Multiverse.

The perfect Mx. Y/N always had a crush on that mysterious quite loser, Chara, but for them? They didn'r care about Y/N, they disliked them ... But what if one day, we fi...

San and Grillby have been close friend for a long time. But Sans doesn't know that Grillby has a crush on him. Well...Why don't you read and find out what will happen be...