The War Amongst Us (W.D. Gaster X Reader)
- Reads 67,480
- Votes 3,063
- Parts 25
Ongoing6h 47m
Last published Sun, Jun 29, 2025
(Y\N) is a young female spy and soldier fighting in the War of Humans and Monsters. She is fighting on the humans' side of the war until a turn of events when she becomes apprehended by the enemy. What will happen when a young monster scientist tries to change her views?
Thanks to Itachei on Deviantart for letting me use their artwork as the cover!
All Rights Reserved
#88
wingding
Join the largest storytelling communityGet personalized story recommendations, save your favourites to your library, and comment and vote to grow your community.
You may also like
Reconciliatale Story
An Undertale AU where Monsters won the war instead of Humans. Both continue to live in peace. Atleast, that is to be believed. In current time, a Human enrolls into a college where she makes frineds of Monsters. They are friendly and strong. But they hold a sad and traumatic past. How will she experience her college life? Credits to the person named Parley for the title design
Should we be together? (Gaster x Alice OC)
have a dream about Gaster and my OC. It's would be a short story. ______________________ Long ago, there was two species that rule the world. Monsters and humans. One day, the war broke of between them. The war last for century. When the humans thought of winning the war, a unexpect twist would change both the respective species. I DO NOT OWN UNDERTALE AND HIS CHARACTER!! ONLY MY OC IS MINE!Complete
Just SING | Sans X Reader
--Long ago, two races ruled over Earth-- --HUMANS and MONSTERS-- --One day, war broke out between the two races-- --After a long battle, the Humans were victorious-- --They sealed the monsters underground with a magic spell-- --Many years later...-- --MT. EBBOT, 201X-- --Legends say that those who climb the mountain never return.-- What if the legend is real? And what if the legend was all wrong? Start date: 4-25-2017 End date: 1-14-2018 Undertale & Characters ~ Toby Fox Plot, Book & Cover art ~ Me You ~ Sans ;) (I do not know why, I just keep putting 'You belong to Sans'/'You ~ Sans in all of my Sans X Reader descriptions from this point forward.) (Warning: Mild language and uh... fangirliness? Maybe, I don't know if you humans think this something to fangirl over.) 1K [•] Date: May 20, 2017 5K [•] Date: July 27, 2017 10K [•] Date: September 6, 2017 25K [•] (probably wont happen) (and iT DID HOLY SHIT THANK YOU SO MUCH I CAN'T) January 16, 2017 50K [•] Date: August 19, 2018 (what the fuck???) 80K [•] Date: February 1, 2019 (y'all... what the HECK) 100K and #1 in the #sansxreader tag [•] Date: July 2, 2019 *wheezes* what the FUCK how did this shitshow get #1 in the fucking SANSXREADER TAG thank you????Complete
To Hell and Back (Gaster x Reader)
"What's that look for? Are you perhaps unhappy to see me?" "Oh no. Oh no, quite the contrary, my love. I've craved to be with you for the longest time" ***** You were sure that you would have captured a Monster, at all costs. But were you sure that you would have captured not a Monster's body, but a Monster's heart? ***** The Barrier is broken • Frisk has saved the Monsters • But not all things went according to plan . . . . ...... It is renowned that Frisk fell into the Underground. They spared everyone, they had [Mercy] for everyone. In the end, they have chosen to be an ambassador for monsters, to represent them in front of all the other humans. Frisk was full of [Mercy]. But the humans weren't as merciful as them. Humans completely forgot about Monsters, and now they had to deal with what they considered an ancient enemy, despite the Monsters' friendly intentions. What will Monsters do, if they suddenly are persecuted by Humans? Will they seek help? Will they search for old friends? ... Was it reality? Or was it a true living Hell? Things always went according to plan, so why? This time, why did it have to end like this? You are a spy, working for the most powerful secret Organisation of the Human Government. Your job is to find your targets and bring them back at the Organisation, but if you have the order to, then you have to kill them. This time however...you underestimated the enemy. ***** The new plan was quite simple: bringing him back in exchange for your freedom. Falling in love with him was not part of the deal though. ********* Word count: 110.473 Cover by Earth Garden on tumblr!!Complete
Dusted hands
Gaster couldn't help but think of the good times knowing that soon those memories would perish in this war along with many other monsters and humans. Gaster and Grillby had to lead their army to a victory, to defy humans even if their last breaths were spitting on the humans shoes, "Now isn't the time to sit and lick our wounds, monster kind depends on us and if you think siting here and sulking is going to help win the war I have to disagree with you." -Gaster. Warnings: Detailed gore Language #1 in humanandmonsterwar #4 in wartime #3 in ShantaComplete
Fallen Angel (Gaster x reader) OLD
OLD AND BADLY WRITTEN THE REWRITE IS POSTED ALREADY DISCLAIMER: The god figure created in this fanfic is purely fictional. He is purposefully made to be prideful and cruel and is not supposed to represent any god. I am religious myself and I did not intend to attack anyones believes with this book. An angel. Sign of hope for humans, yet a nightmare for monsters. Powerful, skilled and...beautiful. But what happens when one rebels against the cruelty towards monsters? What happens when she's banished to the underground, only with wings as a painful reminder of who she once was. What if she's found by the Royal Scientist? What if the nightmare every monster is scared about, is just as broken as they are? And what if she'd find something she would never imagine she'd find in the underground...love? *Cover edited by me. The pictures used in the story belong to their original creators. If any of them aren't okay with them being used, I'll take them down* Started: 21.12.2018 Ended: 22.08.2021 09.03.2019-Number 1 in gaster! 07.02.2020- Number 7 in undertale! 25.02.2020- Number 4 in undertale! 15.04.2020- Number 1 in undertale! 11.10.2020- Number 1 in papyrus! 03.06.2021- Number 80 in fanfiction!Complete
What's Up, Doc? | Gaster!Sans X Reader
------------------------- "Well would you prefer 'glasses' or 'human'?" He smirks. "..." You glare at the smoking skeleton. "Then Doc it is." ------------------------- Things to remember: | Author's Notes (A/ns) are written like this. | | Swearing. No lemon. Just fluff. If lemons shall be added, they'll be censored. Basically lemon-free. | | Story is written in my point of view (author's) and is a slow burn. | | This guide will be updated regularly, so don't forget to check it out every time somethin new pops up. | (Y/n) = Your Name (L/n) = Your Last Name (E/c) = Eye color (H/c) = Hair color (S/c) = Skin color ~~~ = Start/End of Chapter ***** = Time skip '___' in Italics = Thoughts ••••• = :) + ___ + = POV Switch First published on June 10, 2017 Last part published on January 23, 2018 Sequel is deleted. I do not own Echotale, maybe some drawings, the music, or Gaster!Sans. They all belong to their respective authors, artists and or composers. But I do own the cover art, maybe some other drawings, and the story. You? Well, you belong to G.Complete
A Name to Remember (Undertale)
~o0o~ Book 2 of the "Better Times" trilogy ~o0o~ (Book one: "The Time Before") (Book three: "No One is Happy with This") Ah. Hello there. You are here in search of a story? ... I could tell you a story of a family, reunited once more, living on the surface world. But such a story has not come to pass, nor do I know how such a story would come to pass. So I will not tell that story. I could tell you the story of how I came to be here, stuck in the black depths of nothingness. But, I have the distinct sense that this story has already been told, by hands not my own. So I will not tell that story. I could tell you a forgotten story. A story of a name long gone, a time erased eternities ago. ... Yes, this one, I think, is the story I will tell. For the name that was once my own, the name that has been lost to the Void, that is a name to remember. Dr. WD Gaster is a Name to Remember.Complete
Undertale: Genocide
"In this world, its kill or be killed" - Long ago, two races ruled over Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans were victorious. They sealed the monsters underground with a magic spell. After the war, the monsters retreated into the deepest part of the Underground, which would be called, "Home." - Note: In chapter one i NICKNAME frisk "Sam" Due to the fact you dont figure out their name until the end of pacifist so i had to put a nickname to make it easier to write and read. Sam is a neutral name so it should be fine. - NOTE: All lines with this symbol " * " is going to be in Wing Ding font in the final release of the book. But for now, it is already deciphered for you! - *So yeah! This is book one of my Undertale Series, which will be 2 books in total. *The book is Fanmade of course, Support the original game by Toby Fox. *Since its Undertale, i have to warn you guys obviously that there will be action and mature things. And book one is Genocide, so... *Follow my Instagram: @Djcasso -Complete
The Sad Love that Kills
!WARNING! This story may include self-harm, killing, blood, and Happy pills! If you are sensitive to these things, do not read! 2 years ever since the monsters have been free and living in a city with humans. W.D. Gaster has been free from the void and has a stable life, at least, that's what everyone thinks. He is hearing voices and refuses to tell anyone. Grillby the bartender has been having huge success with his business but is having trouble finding some co-workers. Only for a night of talking did they change each other's lives. But they don't know why they're lives, and intentions are changing. It might be a match made in heaven. But it can also be something that might make the alliance between monsters and humans crumble. (Yes I made the cover.)Complete
An Undertale AU where Monsters won the war instead of Humans. Both continue to live in peace. Atleast, that is to be believed. In current time, a Human enrolls into a college where she makes frineds of Monsters. They are friendly and strong. But they hold a sad and traumatic past. How will she experience her college life? Credits to the person named Parley for the title design
More detailsContent Guidelines