Fellsans Stories

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399 Stories

  • "Mama sans" by Apollo_Jeez
    Apollo_Jeez
    • WpView
      Reads 4,546
    • WpPart
      Parts 9
    y'all love mama noot noot? WELL TOO BAD BECAUSE IT'S SANSES TURN TO BE LIKE HIM. ahem. let's get on with the summary, the sanses got turned into kids, and they all were teleported into undertale, and sans had to take them in because yeah, and papyrus, frisk, toriel, asgore, undyne and alphys decided that they wanted to help sans, as well as tease him along the way. And flowey is just curious. Sans aus nicknames: Ink sans-INK Error sans-ERROR Nightmare sans-NIGHTMARE Dream sans-DREAM Killer sans-KILLER Horror sans-HORROR Murder sans-DUST X sans-CROSS Fellswap sans-RAZZ Swapfell sans-RASP Fell sans-FELL Swap sans-SWAP Science sans-SCI Fresh sans-FRESH Outer sans-OUTER Fluffy sans-CCINO Lust sans-LUST Geno sans-GENO Farmer sans-FARMER
  • Reborn as killer sans but I'm pregnant  by rie-rose
    rie-rose
    • WpView
      Reads 22,206
    • WpPart
      Parts 18
    The reader has died and has been reborn as a killer sans but pregnant He has to learn how to use his powers and learn about himself first ------------------------------ Listen this might suck and there might be spelling errors but don't blame me and if you don't like the book you don't have to read it,also I don't really know a lot about the sans aus but I know a good bit to write at least something,so I'm sorry if it sucks.
  • After Pacifist { A Sanscest Story } by starrynight_chara
    starrynight_chara
    • WpView
      Reads 1,644
    • WpPart
      Parts 16
    CHARACTERS ARE NOT MINE!!! I might add some OCs though, if I did, they belongs to me. And I drew the cover by myself, so art belongs to meeeeee. Oh and if you saw this on discord before, it is because I posted it there before I made this book and I feel like this would match the story so yeah! Warning: Strong Language but there won't be sin, I can assure you. MIGHT contain some violent or bloody scenes but not much, I'm not really sure what will happen either -_- It's been a few years after the barrier in the original universe, Undertale was broken. Everything seems to be peaceful but some of them knew, if they don't get rid of "THE PLAYER", they still have risk to lost everything they have now. On the other hand, a certain skeleton was missing. A bunch of skeletons were determined to find their friend. Will they find their friend? Or, will they find something they never thought they would find along the way? Main Ships: Errink (Error X Ink (MY OTP)) Cream (Cross X Dream) Killermare (Nightmare X Killer) Dustberry (Dust X Blue) Afterdeath (Reaper X Geno) REEEEEEEEEEEeeeEEEEeEEEeEEEEeeeeEEE For anyone that would read this part, I will be so grateful. ;-; Also, this is my first book so it might be cringe. I'm not English originally so there might be spelling and grammar mistakes, if you are so kind, please point it out.
  • The Real Story by Fandomzzz1234
    Fandomzzz1234
    • WpView
      Reads 237
    • WpPart
      Parts 15
    Read about you meet Ink, Error, and Tokea my OC.
  • incorrect Undertale quotes  by -Berri
    -Berri
    • WpView
      Reads 85,823
    • WpPart
      Parts 123
    Most of them are stolen from Tumblr Edit: How are people still finding this story I-
  • the conicles of my undertale au ocs by kaden_draws_alot
    kaden_draws_alot
    • WpView
      Reads 63
    • WpPart
      Parts 7
    uhhh yeah so this is gonna consist of stories,art, comics, and more. yes I made all the art(unless i say I didnt) I'm not a good writer so bear with me :// thanks I guess--
  • Pollen || A FlowerFell Au || by Tr4shy4419
    Tr4shy4419
    • WpView
      Reads 36
    • WpPart
      Parts 7
    It has been five months since the unfortunate and timely death of Frisk, and even afterward the underground has only fallen darker into despair. However, when Sans has a strange dream about Frisk a new hope had found its way to the Underground, along with new horrors to conceal. How much has Frisk missed, and will the trio be able to stop this dominating disaster from destroying everything? Is kindness really enough? This is my first real fanfiction, so I'm sorry if it sucked. I wanna give you a heads up. This is NOT a Frans Au. I kinda wanted the bond between Sans and Frisk to be parental, so we are going with that. This is also a FlowerFell Au rather than a continuation of the series itself. The ending to FlowerFell is left ambiguous, and I am adding a ton of things that aren't canon to the original storyline. It is NOT canon, so please don't compare it to such. If you are upset by the lack of Frans, then sorry bout your luck. -_- FlowerFell is an Undertale/Underfell Au created by Siviosanei. You can no longer find the original story, so if you do not like this story. Do not try to witch hunt the original author of the Au. I feel it is important to be grounded with the knowledge of Undertale and its Aus so I highly suggest you learn about them before reading this fan, Au. Edit from months later: Yeah I was cringe...I'm sorry QwQ...well not really. This fanfic is sadly discontinued, but I wanted to get it out there because I thought it was fairly decent writing. So enjoy what you want. Started: 11/8/21 Ended: -<-
  • The Multiverse Tyrant by Lxzaruss
    Lxzaruss
    • WpView
      Reads 60,767
    • WpPart
      Parts 33
    !! STORY COVER IS MINE, CHARACTERS DO NOT BELONG TO ME EXCEPT Y/N !! (ps, heavily inspired by my other books, mainly Multiverse's Unwilling Protector.) (Book is currently in hiatus, will be back soon🫶🏻) - " New life emerges from the past, In every breath, the die is cast. Guided by echoes of lives once known, Hopes reborn where seeds were sown. Through time's embrace, I rise once more, My soul reborn on a distant shore. As shadows fade, I find my way, Reincarnation brings the day. Eternal cycles, never apart- ■¿■??1■■2211?¡? Nightmares end, but souls restart. " Reincarnation - the rebirth of a soul in a new body. #1 in nightmare sans 01/30/23 #1 in killer sans 01/30/23 #1 in dust sans 02/09/23 #1 in fell sans 08/22/24 #1 in action fantasy 08/22/24 #2 in undertale 08/25/24 #1 in omnipotence 09/02/24 #1 in lazar 09/02/24 #1 in inksans 02/02/25 (This is DreamTale if you're wondering. Another day, another book.)
  • @UNDERTALE  by Lowkey_Blue
    Lowkey_Blue
    • WpView
      Reads 10
    • WpPart
      Parts 1
    This is a series of short one-pagers (maybe even more than one) focused around Undertale. I'll be writing down my random ideas here and maybe even takes a few requests if given the interest, time, and focus. Before you enter this, a quick disclaimer is my stories follow through many different genres, plotlines, scenarios, and even universes to switch things up quite a bit. Some are inspired request (@ or anonymously), or something other of those aspects. I have a very simple set of rules and descriptions which can be reviewed on the VERY first page. Author notes will be spliced through chapters as to not disrupt the stories often, and only when something very important occurs. Follow me if you enjoy my content, and if not that's fine by me. I only want to entertain myself and others. Vote your favorites out of these to gain attention to it...I'll focus on that more if it is brought to my attention! Enjoy!
  • Come down with me  by Goldiswatching
    Goldiswatching
    • WpView
      Reads 57
    • WpPart
      Parts 3
    I thought there wasn't enough CherryBerry so I did something about it.
  • Lovely Morning (OneShots - Sancest) by DreamYxKinG
    DreamYxKinG
    • WpView
      Reads 66
    • WpPart
      Parts 2
    I'll just write a bunch of random stories and put them in one book- what could go wrong? If there's any suggestions you'd like me to write, tell me! I won't write any Dreammare or Dustberry though.
  • What If Nighmare Goes Into Water? by Bluepopsicles69
    Bluepopsicles69
    • WpView
      Reads 177
    • WpPart
      Parts 4
    So just a story that I didn't think would become this much
  • Sans AU backstories  by Genya_Simpo24
    Genya_Simpo24
    • WpView
      Reads 17
    • WpPart
      Parts 3
    =>
  • Sans Au Head cannon by NightDragon574
    NightDragon574
    • WpView
      Reads 72,603
    • WpPart
      Parts 150
    I have seen multiple people's head cannons and decided to add mine These are NOT cannon, don't take these as fact. You can use these in your stories though Undertale belongs to Toby Fox, all characters belong to their respective owners
  • Malaverse by BlackRoses839
    BlackRoses839
    • WpView
      Reads 295
    • WpPart
      Parts 23
    This is a continuation of Maladaptive, but it's in the present instead of the past. Maladaptive is still going on, but this is just if you want to see what's going on currently. Fair warning, this half is currently very depressing from Red's POV. Warning: WHAT THE FUCK IS EVEN HAPPENING??? THE FUCKING TRAUMA
  • Cherryberry / Fellberry oneshots •|• lemon (NSFW) •|• by _GenoSwap_
    _GenoSwap_
    • WpView
      Reads 63
    • WpPart
      Parts 1
    basically what the title says (Swap will be female btw)
  • Sans AUs Ask & Dares by RyuuYue12
    RyuuYue12
    • WpView
      Reads 573
    • WpPart
      Parts 5
    Feel free to dare and question em Notin that this is my AU so theres gonna be stuff thats based on my headcanons on em All art are not mine credits to the artist except for the gachas- Officially Completed since its dead Sorry no more questions lmao Started: February, 12, 2022 Ended: August, 13, 2022
  • Curses N' Mustard | Fell!Sans  by IFellSansI
    IFellSansI
    • WpView
      Reads 157
    • WpPart
      Parts 2
    "Y'know what? F*ck it. This place is hell, why not have a piece of heaven?" |•°~ Hello, Hello! Kwirty here! Just want to give a quick warning!: |•°~ Fell curses a lot, and has a very grammatically incorrect talking style. The way I portray The Undefell Bro's is in a way that Papyrus can get abusive with Sans sometimes, when angered or even annoyed, so fair warning about him mentioning that! |•°~ I think that's all the warnings you need? Oh yeah! And make sure not to cut yourself on the edge ;3
  • Ask Underfell Sans by Pepsiwriter
    Pepsiwriter
    • WpView
      Reads 7,997
    • WpPart
      Parts 41
    Ask your questions here and I may answer them, perhaps, most likely....if the boss is ok with it. # Third place in the 2nd Ohana Awards # I do not own Underfell. That right belongs to the people who created the AU. I do not own the cover art either
  • Not Fallen(Underfell) by Phanzure
    Phanzure
    • WpView
      Reads 196
    • WpPart
      Parts 3
    He was determined, Flowey knew that, but... as for why, he couldn't piece it together. They just had to handle a world where everyone is against them. (Female Sans x OC x Female Chara)