Historias de Undertalefanfiction

"I volunteer," Isabella had said. "I will give Asgore my soul." Isabella had a dark and confusing past. She was hurt by her father, homeless, and worse. One day, she is kidnapped and brought to Mt.Ebott, where she jumps down a hole to end her life. But she lived. And now some man with a blue eye calls her Frisk and tries to kill her. And now, here she is. Giving up her useless soul. Sans hadn't seen Isabella in any other timeline, in his dreams, or even from books. Nothing. He just couldn't tell if she was trustworthy. But he also couldn't bare to see one more human die, he had given up leaving the Underworld years ago. So he begged Isabella not to do it, to think about it for a week. So she did. But as she is getting ready to leave, Sans begins to feel something strange about her... That was also when disaster struck... (No strong langue. Includes hints of being abused, but nothing too bad. Includes romance, battles and death. NO LEMONS!) #RebelWritings

No, this is'nt Frans... Sans was on his everyday patroll as usual, expecting to find nothing... But what he finds may hold the future fate of monsters.... [ATTENTION!! IM NO LONGER WORKING ON THIS CURRENTLY. I MAY GET BACK ONTO IT IN THE NOT SO NEAR FUTURE IF ENOUGH PEOPLE WANT ME TOO HOWEVER.]

This story is about when Kate, the daughter of UnderFell Sans, gets sucked in a black hole and finds herself in UnderSwap. Although she is a unknown character, there is a evil presence following her. Will she find out who she is? Let's find out in the last volume.

It's been two years since monsters have been introduced to the surface and most of Ebbott City has taken the monster's arrival in full stride. People fought for monsters' rights, monsters could have jobs, and it became normal to bump into a monster on your way to Starbucks. Some monsters and humans actually found their soul-mates on the surface. (Y/N)'s whole life was changed when she met one smiling monster. And his name was Sans, Sans the skeleton. (I'm horrible at writing descriptions, so please don't judge the book b/c of this.) ~(^-^~) Enjoy! (~^-^)~ All Undertale(c) characters belong to Toby Fox(c)

8 and a half months passed since the monsters were freed from the underground. Frisk found themself coming back to the cave, fond memories filling their head from their journey in the underground. They wandered the cave, until they met a familiar face where they had fallen.... A short story about Frisk after the outcome of the true pacifist route. COVER ART NOT BY ME!! CREDIT GOES TO ITS ORIGINAL CREATOR! Would add proper credit, but Pinterest is horrible at giving credit XP

This is a story of Horror perspective from the AU I made that I will probably call.. "the casual" (idk I'm still thinking for the name) This story might have alot of sans, frisk, and other bunch but I make them all as a normal human in this story. So no power, soul stuff, or any form of save and load and stuff like that. It's just a normal high school life for this character (tho not too normal). This story is also the continuation of the previous story I make "THE CASUAL MURDER TRIO" (Tho it have worse grammar and usage of word on that one). So if you have the power to endure bad grammar perhaps you'll have to read that first before this one so you'll understand the character a little bit more. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tho for CONTEXT (spoiler) : Horror got caught by police for being one of the suspect that help fell(sans) to make a ruckus at fresh(sans) party. By ruckus, it mean a literal attempt to murder dust in fresh biggest party of the year. The party end by the defeat of fell, killer escaping to who-knows-where since he's the one who bring fell critical condition and wanted by police, dust passing out, and horror got caught. And two month after the event, this is where horror perspective story start.. the first time where he got separated from his only friends for the longest time. And because of that, his behavior started to change and only god knows what will happened.. (read it to know what god know 🌞)

Pair of fic. What does it really mean to spare someone? & What happens when Asriel convinces Chara not to kill themself?

When a maniac comes to town, someone who's been hidden must come out of hiding. [THIS IS PURELY AN UNDERTALE FANFICTION. ALL CHARACTERS BESIDE QUINTA BELONG TO TOBY FOX.]

[2nd book] A Yandere Underfell Mettaton x reader story After Y/n falls down, they meet someone to help them throughout their way back home. Somehow they become very good friends, untill a robot ( (not so) superstar) comes in the way and falls in love. This love drives him insane into an obsession. "W-What do you want from me?!" "I want you to be mine, M̶y̶ d̶a̶r̶l̶i̶n̶g̶~" I Do not own Undertale, Underfell or Any of the characters! I also do not own the art I just edited the cover! Will update on Tuesdays, Fridays and maybe on the weekends Slow updates ( Sorry ) Also might be some typos/errors through out the story Started writing: 1/21/23 Ended writing: 5/12/23

There are basically no spoilers because I changed the plot of Undertale SO much that you wouldn't even realize it's a spoiler unless you've played the game. (I don't own Undertale or the characters other than Jack! I do not own any of the art or media in this fanfic unless I say so!)

. . . My Social Studies teacher x Sans from Undertale A heartbreaking story that'll make you cry. [ONGOING]

When the monsters got to the surface, Sans got into a drunk driver accident (Sans wasn't the drunk one) and lost his memory, he remembers absolutely nothing. He was able to piece a few things together, like that Papyrus was more than a friend, since they're both skeletons. All of his friends try to help him remember, but it was unsuccessful. The drunk driver, Kathryn, offered to help Sans's friends in any way possible since she's guilty for what happened.

Eight children. Eight souls. One chance to make it out alive. Will they survive the trials they must face in the Underground? Or will one of them die, and pay the price?

Maria is the 8th fallen human, followed by the 6 other souls and Melanie. Maria must fulfil the prophecy by completing the tasks to save the underground and restore peace and harmony between humans and monsters. Will Maria survive? Will the monsters see the light of Earth again?

undertale oneshots of various characters, also will write scenarios might write about deletarune if i feel like it reader will be genderless (if they appear in the story) all characters (except reader) belong to toby fox, characters are from the game undertale just for fun, i don't have a writing schedule so uploading might be random things i'll do: ✅fluff ✅angst ✅platonic ship (two (or more) friends) ✅romance (ofc) things i WONT do: ❌NO LEMONS/LIME ❌NO ADULT X CHILD SHIPS ( ex: frans) ❌NO INCEST ( ex: sans x papyrus)

Gaster is the current royal scientist, set with a mission to break the barrier and free monster-kind from their underground prison. His loyalty and persistence to the task is clear, since he'll make whatever sacrifice necessary to complete it. However, even a perfectionist can be blind to some of their own flaws. Gaster has a habit of pushing things or himself too far. An accident occurs in the lab. Whilst trying to save him; one of his lab assistants, Y/N, gets injured. Burdening himself with even more pressure and guilt to fix it, Gaster thinks that doing all of her work for her will cover up the incident. Still, the sad reality is that the damage can't be undone. Well, Gaster ends up spending more and more time with her. As a result, both of them gain an entirely new perspective of the other, they aren't just another monster in a lab coat anymore. Hey! It's Oreo aka Writer~San! Undertale, it's characters, and it's fanart do not belong to me. However, the story does!!! I hope you enjoy it! (^w^)~

[Undertale] A game that no one has to die. It's a game where you fall to the underground and met various kinds of monsters. They are attacking you, hurting you.. what will you do? Will you kill or spare them? Their ｆａｔｅｓ are up to you. Your e̶n̶d̶i̶n̶g is up to you. [( Admin's note: I swear, this game is really great and everyone needs to play it. Also, my story is full of SPOILERS, it's not a romance fanfiction - just a slight fluff, probably BUT, people who haven't played the game called Undertale shouldn't read this. You should wait a bit more or, you can buy the game in Steam. = http://store.steampowered.com/app/391540/ = The game is great, it is filled with lessons, filled with rich stories, golden character developments and soundtracks. If I were you, I would totally play it! )] { ᗰᗩᒍOᖇ ᔕᑭOIᒪEᖇᔕ_ᗩᕼEᗩᗪ } =-=-=-=-=-=-=-=-=-=-=-=-=-=- Finally, Frisk finally gained an access to the surface, together with her new family - Toriel, Asgore, Sans, Papyrus, Undyne, Alphys, the underground's monsters and .... Asriel. As Frisk took a step outside of the underground, her new family felt the warmth of the sunset, shadows lingering behind their back as the warm oxygen surrounded them. Little did she know, everyone started leaving and went to different directions as Frisk became the monsters' ambassador, which may be just a little play for them. Toriel came to ask her, "My child, this is your own world. It depends on you now. Do you have places to go or do you want to stay of what this world feels like with me?" The determined brunette shot a smile to her, nodding promptly and grabbing the goat mother's hand, pointing the direction where Asgore went off. "Alright, my dear. Let's live a new life. I'll build a school where King Dreemur is the janitor and I'll be the principal. Everyone will receive free butterscotch pies every lunchbreaks.." As she chuckled, following the steps of the monsters who had gone through.

What if the information of how to leave the barrier came a little.... earlier in the game? This story tells the tale of Mettaton and you, the reader (not frisk!!), going through various journeys together on the surface. Will he choose fame and fortune? Or will he choose you, instead? --- note: the mettaton pixel is by wingsandantlers on tumblr! check them out sometime!

A human has fallen into the underground - and they are on a killing spree. After an unsuccessful attempt to stop them, Papyrus barely manages to get away from the human, but the fight has left him severely injured nonetheless. With his last ounce of strength he tries to make his way back to Snowdin Town, wishing to see his brother one last time. But his soul is slowly breaking apart...

This is where you can find all of my Undertale oneshots and Oneshots about Undertale Aus! There will probably be more oneshots about the Aus here. I'm not taking any writing requests right now unless the request has a detailed plan for the story. I hope you enjoy them though! The cover art is by Coa Cowboy Cody