Undertalefanfic Stories

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!!

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...

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

"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...

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...

(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...

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

(Y/N) is a 17 year-old human who fell from the surface. She has been living with the Skelebros, and soon fell in love with a certain tall skeleton, but does he feel the...

UNDERTALE ZODIACS WOOOOHOOOOOOO This is definitely gonna turn out gr8 {Highest; 200 in Random}

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...

Innocence had already been more or lost by the Dreemurr brothers, but the friends and memories they'll make along the way are certainly worth it. The question is: will t...

One more, only one more soul and the monsters would finally get out of their prison and get their revenge on humanity along with their mighty king, Asgore Dreemur. Torie...

This is the first fanfic I've ever written so plz don't judge. Reader-Chan is a female BTW but guys can read too. I hope u enjoy it! ^-^ COVER IS NOT MINE

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...

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...

When Weiss Schnee Gets Hit by Cinder Falls Fall Maiden power she falls into the abyys and ends up in the anti void instead of The Ever After where she meets Error!San's...

A second-person relationship with Asgore Dreemur, former king of the underground. With all the pressure on a sixteen-year-old hiding his sexuality from his family and th...

(Y/n)(L/n). A girl who received an unknown email telling her to download the link of a "game". She didn't know what could happen.. Except maybe a broken laptop...