Gaster Stories

In this world, when Error leaped off the edge, he took Ink with him. (Cover art and any story art is mine)

Your favorite skeleton is back at it again... and again... agagaagaag Sans has had enough. Everyone is at the surface, holding their own jobs and lives. But... Sans can't ever let it fade from his mind. The dust. The cries. Watching the screen with Alphys as a child just rampaged in the underground. He is going to snap. He is mad. He is sad. He can never forget. Cover is NOT mine, find it online if you want ::Rights for the original concept and media 'Undertale' are all under the jurisdiction of Toby Fox. All other workings are done by me.::

[3rd book] So it's yandere Undertale One shots because I can. Also because some characters just kinda need to be more recognize. Slow updates? Or it will just Update at random. Also there might be some errors so sorry about that. Started - 4/9/23 Ended - 5/31/24 I don't own Undertale or the Characters! Not the Cover I just edited it!

***CLOSED UNTIL FURTHER NOTICE*** Cover photo drawn by FURTINIYA27. Just like my main series of stories. Only this time, they're requested by you; the readers! :D Yes, in addition to writing my own personal ideas for stories, I am also open to ideas from fans. So please, feel free to make one or more requests if you'd like. :) But before making a request, please make yourself of aware of the rules listed in the book itself. It's very important that you follow each and every one of them!

(Slightly edited version for better reading) (Disclaimer) This is by @Shyboxes. I am archiving this with permission so people will still be able to read it. :) I will also fix some spelling and dialogue errors to make the reading experience better :) I also may add my own personal comments at the end of the parts (CFTA = Comments From The Archiver), just sharing a bit of the experience of the process of archiving this story and my own thoughts :) ----------------------------------------------------------------------------------------------------------------------------- • I reccomend you do not read this, this is my worst work yet despite it being my first. There is another story on my profile that is under development and editing. Other than that everything else here has remained untouched for over two years. DISCLAIMER: i do not own undertale nor any videos, pictures, intro, etc. And i reccomend checking out the original creators You are an ordinary teen or are you with a weird crystal appearing right next to your bed with it telling you strange things and having an encounter with a flower saying you soul is special are you really normal and is the senior year of high school really be normal with monsters starting to teach and attend school will your life really be normal?

Deltarune - The Harem Soul is set in an alternate universe of Deltarune, where the prophecy has already been fulfilled and the world has returned to peace. However, instead of ending, the timeline is reset by the Soul itself, which chooses to begin the story again. This time, the reset is flawed. Small anomalies and unforeseen inconveniences break the original flow of fate, allowing the story to change in unexpected ways. Kris awakens once more in a familiar world, but events no longer follow the same path, and new connections and outcomes become possible. What was once a completed legend now becomes a living, shifting story-one that can be rewritten.

You are the elder brother of Frisk. I'll explain later. This book will not be updated for a while, sorry. Completed: December 2nd, 2020 SC Book# 12

After conquering the Nine Realms, Sans Odinson begins seeking new powers to become the true All-Father. His journey leads him to Helheim, where he faces Fenrir in a deadly battle and gains the power of the Fenrir Blaster. Meanwhile, Loki Chara and Frisk travel to Jotunheim to learn ancient magic from the sorceress Freya in order to stand against Sans. As both sides grow stronger, the fate of Asgard begins to shift in dangerous ways.

Underfell is a dark world with the major rule of kill or be killed. Even though children are suppose to be secluded from this rule, that doesn't stop monsters from hurting children. Undyne is a monster who lives in Waterfall. Under the care of Gerson. One day while out on a walk the fish monster stumbles across a baby. Though it wasn't any monster. It was a small little baby skeleton. (the cover is only temporary, until I'm able to make a cover for the story)

He hates seeing The End

Having escaped their cruel imprisonment within Mount Ebott, monsters have settled on the surface for six years now. Their human savior, Frisk, now struggles with the busy life of being an ambassador. Soon, tragedy strikes, and with a civil war brewing back home and every timeline now at stake, will the prophesied angel manage to keep their happy ending? Undertale's world and characters are owned by Toby Fox. This is a non-profit fan novel. Please support the original game.

Is it still considered a backstory if the protagonist doesn't exist? Companion story to "Reset".

After the events of a genocide run, Sans somehow gets out of the game and finds himself in the real world. As Sans was perplexed at first, he finds a few human friends along the way where one of them was known as their tech destructions. Will Sans get to solve all problems and live a normal live or will he get suffocated by some fans of his?

I have an Idea for an Undertale AU. And apparently, it's a good idea? So here, have a book. --- Long ago, two races ruled the earth. But when a plague of corruption swept through one species, causing a half of their population to attack the humans, the humans thought it safer to banish all the monsters underground. Now, the Underground is a Battleground. The battleground of the Pure and Corrupt armies. This Is UnderCorrupt. -- COMPLETED!

Extra Scenes from "It's a Beautiful Day Outside..." If there's a particular scene you would like to see, let me know and it shall be so. The unofficial sequel

On a dark, windy and rainy night in a bad part of Chicago, a skeleton named G, walked home from work. He doesn't normally walk home, preferring his motercycle, or even his teleportation powers. But something made him walk this night. Fate. G finds himself saving a young girl from a horrific death, and then taking her home to keep her alive. What he didn't expect, was for the girl, much older than first appeared, to flip his whole world upside down. A curse, layed on his SOUL many years ago, may have the second chance of being broken, but DEATH has other plans. To make matters worse, the girl has a deadly disease, with little hope of survival. Can G save the girl who he has sworn to protect and take care of? And in turn, can the girl break his curse, and let him finally live the life he was ment to? 《GasterSansXOC》 (Frequent updates, and this promises to be a very long book)

Frisk just wants Sans back. After Chara forced her and Sans to fall through the hole in Mt. Ebott, something happened to him. He's not here anymore, but this stranger claims to be both Sans and Dr. Gaster. Together, they continue through the underground, hoping to keep Chara at bay and find a way to bring back Sans. But what if they can't bring Sans back? And what if Frisk falls for this stranger? Adult!Frisk x Sans Adult!Frisk x Gaster!Sans

Kyra falls into the underground, while there she finds that her connection to the monster realm goes deeper then she thought. Cover by @rykosen Undertale belongs to Toby Fox

Sans and Papyrus were just trying to have dinner. They didn't expect things to blow up (literally). Now they have a destroyed machine and a young babybone that they suspect as a Shifter. Where did they come from? And who's life privilege they need to remove? Because this babybone is clearly been abused or worse. Now then, where's that parenting books Sans been storing since Papyrus a babybones, he's definitely need a review if they want to keep the kid from getting killed. At least the kid's adorable...

" what am i supposed to do? " | Underfell AU | ©︎ 2018