Corefrisk Stories

A young boy at the age of 16 had lived an ordinary life. He had a home with parents, he went to school and do his homework, he had friends that he had hung out with, he...

The multiverse decided, "Ayo, Imma need to make a whole other living thing to handle this Balance shit yo." Though there are restrictions, your boi is out in t...

"Error, what did you do?" Ink didn't expect there to be AUs beyond the Doodle Sphere. Core Frisk never would have thought that there are things they can never...

Y/N gets isekai'ed to an Undertale multiverse. He becames the embodiment of Manipulation and Control. As he does not want to believe he died before, he becomes someone w...

Witness the life of Error404 with Core Frisk and their friends as they go on a lifelong adventure to a happy life.

Sequel to What Love Does to the Best of Us. It is highly recommend you read that before coming to this. Ink and Error are dead and, in their places, are Blueberry and C...

This is my first story I've posted, so no hate, please. Also, even though the title says storyshift... It's not going to seem like that for the first part of the story...

I have felt the pain of Betrayal when my original Creator abandoned me. Then again when my first friend Error seemed to have left me. I hid behind a persona of who I onc...

Before the events of Underverse begin, seven people disappear from their Multiverse. Dream, Error, Fresh, Stretch, Outer, Core!Frisk and Cross!Chara are trapped in a new...

The story of a sans who is misunderstand and a frisk who has more to her then what others know

[Cover art not mine] a undertale reincarnation story where this version of the humans becomes one if the most powerful organizations in the Multiverse 6 in corefrisk

A normal player who lived a normal life saw all the pain and suffering everyone was feeling and 𝙀𝙣𝙟𝙤𝙮𝙚𝙙 it. Now, they want to make everyone feel that pain more in...

[[Undertale and Stardew Valley AU = StardewTale This is a OC insert story.]] The Undertale crew make it out with the help of Frisk, the forgiving eight year old girl. Li...

This fanfic will have SansxReader, CharaxFrisk, and SansxFrisk. There will also be those original love, like AlphysxUndyne. You ask how Sans would like Frisk while likin...

\this one was actually inspired by AqilahDawinterWolf Yan au 1 shots / (Though sadly I do not have motivation to continue this. I do apologize as I'm focusing on my ar...

in the multiverse even if you know what the original universe is you can't know the first or original timeline now the same person that has create the original timeline...

꒷꒦꒷꒷꒦꒷꒷꒦꒷꒷꒦꒷꒷꒦꒷꒷꒦꒷꒷꒷꒦꒷꒷꒦꒷꒷꒦꒷꒦꒷꒷꒦꒷꒷꒦ 「 Una creación extraviada en el Multiverso, un muñeco, aunque su semejanza hacía los Humanos era mucha haciendo qué se confundieran i...

What if someone transfers into another world into Error Sans but wait. It's not normal Error it's Righteous Error. What he will do in the multiverse and how he will deal...

In this story Sans gets heart-broken when his au gets destroyed by Error. He loses his brother as well. He meets the Star Sanses who try to help him. But of course nothi...

sans was simply sleeping one morning having lived quite a while in his mansion after leaving the underground, he had wanted to simply live his years in peace and keep up...