The Eighth Soul (Sans x reader)

Reads 2,477
Votes 47
Parts 14
Time 2h 10m

Reads 2,477
Votes 47
Parts 14
Time 2h 10m

Mature

alphys asgore chara frisk homocidal jealousy papyrus sans sansxreader toriel torielxsans truelab undertale undertalexreader undyne xreader

What happens when Frisk's older sister falls into the Underground on a genocide run? Can you get the monsters on your side to stop your genocidal brother, or will you end up just like them.All Rights Reserved

alphys asgore chara frisk homocidal jealousy papyrus sans sansxreader toriel torielxsans truelab undertale undertalexreader undyne xreader

Table of contents

14 parts

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Saving Them (an Undertale fanfiction) by fucking_username

The barrier is broken, monsters and humans are living in peace, everyone is happy except for one person. Frisk has been getting waking nightmares about not saving Asriel. They want to save him to erase all guilt and to be with their friend. But Asriel isn't the only one that needs to be saved. Something, someone lurks inside Frisk's soul. Someone deadly and has a hunger for power, and can kill anyone they want. A/N Frisk and Chara are both gender ambiguous in this story. Also there will be a little bit of Frisk x Asriel in this story, but this is not a Frisk x Asriel fanfiction. Credit to @karinacat59 for the cover. Undertale belongs to Toby Fox and none of the characters are mine.

Where do u think u're goin'? Yandere! Undertale Characters x AnyGender! Reader by Pandy999

The story takes place after Frisk sets free all the monsters in the Underground. After that, everyone was happy until...something horrible happened...

A second chance (A Human!SansxReader fic) by TheRealMissMisery

It had been two years since your friends died in an awful accident, and when you finally think you're coming to terms with it, you get world shaking news. The fire wasn't an accident. Now you and your friends must outsmart a murderer to free your friends, and if that wasn't making high school hard enough-- The monsters you had been forced to kill years ago have escaped the UNDERGROUND.

My Sun Drop (Tangled Au! Sansxreader) by Grace97721

Exactly what it sounds like: Monsters have been freed from the underground by a child named Frisk. Some time had passed and peace between humans and monster has been established within the land. Now, King Asgore and Queen Toriel wish to form a friendship with the neighboring kingdom of Corona. Unfortunately, not much progress is made when the trio of scientists, Gaster, Alphys and Sans. Steal a very important item from the king and queen. The lost princess' crown. Why? Read to find out. I'm sorry if this ends up being cringe. Tangled and Undertale does not belong to me obviously. #1 on Sansxreader

Forgotten Star ( An Undertale fanfic ) by MeryMayham

- disclaimer - I don't own the characters or the game or the cover, I only own my oc Intro: After Frisk's 20th time of resetting the timeline to the beginning, a monster girl falls down with them without any memory of anything other than her name. ( Read to learn more )

A Tree, For Us (Sans X Reader) by TheAbandonedQuiche

CONTAINS SPOILERS FROM BOTH PACIFIST AND GENOCIDE RUNS After a horrible situation, I (Y/N) scaped from home to avenge my (sibling). In a failed attempt, I got lost and fell through a hole, in there I found another world... "the underground". I meet many friendly monsters, one, specifically, changed my whole life. Both of us will try to give the monsters the liberty they deserve. And this is how all happened... (Cover made by me :3)

~'Disclaimer: This story has a lot of profanity and covers some very very intense or touchy subjects that may disturb some readers. You have been warned.'~ ((Unedited)) After Chara fell into the Underground, they met Asriel a monster inhabitant of the Underground. Soon after that, Chara joins a new family, but their ambition to keep everyone happy goes a little overboard and Chara is flung into a reality of destruction and hopeless wonder. Then many long years later they meet the beloved Frisk, who fell into the Underground, similar to themselves. Eventually everything Chara thought they knew correctly is turned upside down and they as a person are changed forever. ~'The game Undertale belongs to Toby Fox and some of the dialogue is ripped straight from the game itself, too.'~

Undertale x male reader - A bullet to the head *Season 1* [Completed] by kinder1000

"A man nearly kills you and your response is to track him across the whole underground... When you set your mind to something you get results... I like that." In this AU frisk is able to break the barrier and complete the true pacifist run. Whilst saving asriel and chara. The monsters were about to make the over world their new home until a mad man seeking revenge comes barrelling through the underground.

Undertale 2: Forgiven by Alex13Creations

Happy endings don't always come easy. Monsters in the Underground know that better than most. Especially when it comes to humans: their history, their fate, and how they Act. But if there's anything that monsters have to learn, it's that the actions of one human do not define the Mercy of another... Takes place after Undertale's in-game Genocide Route

Part 2 to Plumetale. Or should I say. Another run. Due to Frisk being Soul Poisoned. A purified Chara resets the world to avoid Frisks permanent death. Unfortunately, the only ones who know about the reset are Sans, The River Person and The Man Who Speaks With Hands. Frisk can't remember much from their previous pacifist run except for the love of her friends. Will they be able to save them? (Still a placeholder cover, lmao)

Saving Them (an Undertale fanfiction)

The barrier is broken, monsters and humans are living in peace, everyone is happy except for one person. Frisk has been getting waking nightmares about not saving Asriel. They want to save him to erase all guilt and to be with their friend. But Asriel isn't the only one that needs to be saved. Something, someone lurks inside Frisk's soul. Someone deadly and has a hunger for power, and can kill anyone they want. A/N Frisk and Chara are both gender ambiguous in this story. Also there will be a little bit of Frisk x Asriel in this story, but this is not a Frisk x Asriel fanfiction. Credit to @karinacat59 for the cover. Undertale belongs to Toby Fox and none of the characters are mine.

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