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!!

"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...

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...

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

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...

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 are an orphan, abandoned by your parents at birth. You've lived between countless foster families and a dreaded girl's home for as long as you can remember, because...

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...

A Goat!FriskXAsriel Fanfiction After the Barrier is destroyed by Asriel, he is doomed to turn back into Flowey once more. Lilac (Frisk) desires otherwise, and gives the...

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

"Oto jest zbiór historii i początków postaci z True GodVerse. Miejsca, którego niektórzy lubią, a duża większość nie cierpi. Natomiast pomimo tego, raczej warto się...

"but I promised that I will fix everything didn't I?"

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...

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

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...

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...

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...

not every story has a happy ending