Undertalefanfic Stories

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...

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...

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...

Undertale aus x reader Featuring (in order): Nightmare Error Dream Ink Cross Dust Killer Blue Horror The Soulmate Au is where everyone that comes or lives there will hav...

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

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...

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...

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!!

"Psychotic tendencies..." As a child, Y/n L/n had a good life. She was always complimented for her h/c hair and e/c eyes. She had a loving little sister and a...

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

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...

-FIRST BOOK OF THREE- Ever since the War, magic humans have been training to kill all monsters when they escape. They've even built a special school designed for teachin...

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...

Slice of life and adventures with Melati!sans and his loyal companion Jasmine, together they will travel across the Multiverse as traveling Merchants. what will they fi...

After the events of the Seventh Season, the Winx Club are sent to Mount Ebott on a mission to release monsters from a cursed barrier done by wizards and mages of differe...

Revised and re-uploaded!! (Got rid of all those author's notes heheh) You're pretty much just minding your own business when you're suddenly pulled into the world of Und...

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...

I wasn't supposed to end up in his body. He wasn't supposed to still exist. And yet... here I am, trapped inside Killer!Sans, the infamous skeleton who lost everything...

A life where I have to fight everyday,sounds tiring but if my bro is there than I have to be. I made a promise, sure, but that won't stop me from being there for my brot...

"What does one do when faced with an end to a story?" An Ink tells his story to the creators as the Multiverse collapses around him.