Corefrisk Stories

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...

You. Yes YOU! 🫵 You randomly wake up in a middle of a battle to notice that you are now in the guardian of positivity body! You can't remember who are you! What you are...

Today is a big day, "why?" You might ask, well today the biggest threat to the multiverse, to the creator the the multiverse, has been caught, Error, the destr...

Cover image-not mine Cover image by-@Charisk Dreemurr☆ (amino apps) Reapertale characters by-@Renrink Core frisk by-@Dokudoki Story is about-Reaper Chara wondering ar...

Core!Frisk had finally captured Error's heart, something she had been attempting to do for the last few months. Error, despite seeming to be capable of being nothing mo...

Everyone in the Doodlesphere knows of the Star Sanses. Ink, Blue, and Dream. The heroes, the guardians, the saviors. Who would have thought they would fall? Nobody. Unti...

After Frisk "fell" into the core, they became core!Frisk. While being stuck down there, Core!Frisk is determine to escape and after finding new friends inside...

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...

\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...

Undertale multiverse before you ask. Error couldn't keep up anymore. It was to hard to combat creation. But fate spoke to him again. She was always kind to him. Healed a...

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...

This story is about a love triangle between Core!Frisk, Ink!Sans and Error!Sans (originally from a traditional art comic I made, but decided to do fanfic ver.) [26/07/1...

Core frisk has noticed that there was something wrong with a couple of aus and decided to check it out. Turns out some sanses have severe depression and disorders. Core...

This is a Undertale fandom. Following a glitch that goes by hacker as she tries to stop Error and his team from destroying the Multiverse. And as she tries to figure out...

(I'll probably change the title later if anyone gives me any ideas) okay here's the summary: When somebody who looked really similar to her had destroyed her AU, she en...

[two-shot] Once again the multiverse falls victim to the plans of domination by the King of Darkness, Nightmare. However, there is an interesting factor that will give a...

You have been taken on a journey by core frisk to discover the hidden love in you.

Sequel to Faking the Fall (I dont own the cover and the description is not finalized yet but here it is. If any of you know who accurately owns the cover, please tell me...

I looked up onto the stage, there were 4 animatronics standing there, 1 skeleton and 3 humans, I believe their names were Cross!Chara, Cross!Frisk, Core and........ Cross

Meet Lily brown, shes volunteered to fix a very fucked up Multiverse with the help of others