Under the Swap

Reads 344
Votes 33
Parts 6
Time 6m

Reads 344
Votes 33
Parts 6
Time 6m

annoying asriel eliza embarrassing funny gaster lite papyrus probably sans swap swapus underswap undertale up

Gaster, well, Swap!Gaster is writing journal entries on what it is like to be the father to the crazy energetic Blueberry and the lowkey, chill Carrot.  

A play off of @sidster0000's Reborn and @lazybones2346's For Her.All Rights Reserved

annoying asriel eliza embarrassing funny gaster lite papyrus probably sans swap swapus underswap undertale up

Table of contents

6 parts

#147embarrassing

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Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.

The New G̶͉̤̮̮̗̩͓̦̭͗̐̀͛̊͛̚͝a̶̟̲̘̘̗̖͔̿͛̏̈́͆̏ş̶͓͍̪̩̿̈́͊̽ͅṫ̷̢̞̹͔̻͈͙͚e̶̮͍̤͎͖̰̣͔̅r̶͗̓ by Call_Me_Darcy

Darce got reincarnated into her favorite game which is Undertale... but she didn't expected to be mad scientist which is Gaster and different one!!! But this Gaster is Gender Neutral and doesn't give up on helping out their people but they ended up in black void where the Gasters are. Will Darce help them to return their rightful home and they stayed behind to recover the void? or The Gaster Gang pull them towards the gang to make themselves at home? Read to find out!!! ☺☺

Pretty self explanatory. This takes place after the Pacifist route in Undertale. Through determination, Frisk was able to bring back Chara, Asriel (Asriel is Flowey per say), and Gaster. I believe that Gaster is the father of Sans and Papyrus. I also don't believe that Chara is evil. The monsters are on the surface, and although they are amongst humans, most humans have accepted them.

Forgotten Phoenix (New Purpose Sequel) by OreoDaSkeleton

It's been a few years since Y/N started her family. Without Honey, she made due with what she had; that being the cafe, her brother-in-law Blue, and her two twin sons. Of course she missed Papyrus. There was no doubt about that. Though, she had to learn to accept his passing. Her sons did not... One of her sons soon makes a secret deal, causing the whole world to reset back in time. The family of three wakes up in the underground. Two family members are now in dire need of medicine. They resolve to find help, get medicine, and find a way out. That is, until a familiar face steps back into their life. AAAAA- HI! It's Oreo aka Writer~San! This is a SEQUEL to one of my books! SECOND! If you haven't checked the first (New Purpose), THEN yoU nEeD to STaRt thErE! XD Also, Undertale and its characters don't belong to me, and is rightfully owned by Toby Fox. All Underswap characters rightfully belong to their owner as well. The writing in this book, though, is completely mine! Please enjoy (owo)~🖤

What if Undertale suffered a major glitch? Like you were glitched into the game serious? What if you were able to change the hearts of the citizens of this now twisted world? Which will you choose... Fight or Spare?

The Skeletons and the Abandoned Cottage | Sans & Papyrus X Reader | AU Antiharem by xxBubbleyTea

Against your better judgement, you decide to go to the grocery store on an early Sunday morning. With no evil girlfriend to get past first, your fate is sealed as the Great Papyrus is eager to befriend you and prove his superior pasta making skills! Before you know it, everything you know is changing before you. NO 👏🏻FUCKING👏🏻 SMUT🫵🏻 YOU HOMOS

Reset {UNDERTALE} by emotistic-optimistic

*FEATURED STORY* As Judge for King Asgore Dreemurr, Sans has seen a lot of strange stuff. But when he wakes up with the feeling that something is completely wrong, he decides it's time to investigate with the only monster who could know what was happening: Royal Scientist W.D. Gaster.

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 new time line comes a new story and this one is not like the others. W.D gaster a father of two children is called on an unusual discovery, the product of something unknown by monsters or man. The smallest addition to his new life and others around them. With no one but the Gaster family and the protection of the Royal Family, She will learn much about herself and the people around her.

Undertale Random Adventures: Senpai Edition by Hailey-Senpai

The randomness of Undertale shines through another one of my books, hallejuuah!

€Top Star Sanses, Bottom Bad Sanses€ by HighCherryloljune

Welcome to this story! ⚠️NO REQUESTS⚠️ But otherwise enjoy:)

Universal Surface Angel

Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.

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