Puns ( Sans x reader )
  • Reads 497,407
  • Votes 16,406
  • Parts 12
  • Time 45m
  • Reads 497,407
  • Votes 16,406
  • Parts 12
  • Time 45m
Complete, First published Nov 04, 2015
Warning! There is a chance that there will be spoilers for the pacifist run of undertale. I recommend finishing that before reading this. There won't be any spoilers for the no mercy run, so don't worry about that! Also, don't worry about anything NSFW/lemon if that's not what you're into-there won't be any of that here. 

You're a human that's fallen down into the underground. You've decided that you'll stay instead of going home after fighting Asgore and sparing him. 
Now, you had made some great friendships while in the underground-but one of those friends in particular was one you'd like to be a little more than friends with...

Aaaa an X reader fic! I haven't done one of these before, but I hope you still like it!
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Undertale; Despair AU 《REWRITE》 by LocalUndertaleAddict
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What if there was an anomaly in the Underground? No, not Frisk. Not Chara either. Someone else entirely. How could a few measly children stand to this supposedly immortal foe and save the Underground from destruction? Is it even possible to do so? Only one way to tell... ~o0o~ Disclaimers before you start! •There is NO fanon ships. That means no Soriel, Papyton, etc. The only ships are Torgore (in the past) and Alphyne. •This is NOT an x reader. I heavily dislike those types of stories. The reader will have no part in this. •This exists outside of canon to an extreme. For example, Frisk is the second human and not the eighth. •There will be OCs, but only for a few humans and they still technically exist in normal Undertale. •There is a sequel. I'm planning on rewriting it after this one, as it is much more random and definitely needs it. Clanky, plot holes/retconning, etc. It's more of an OC thing, to explore them and their issues, than an Undertale thing, but it has its similarities. •There will be some explicitives. It won't be unnecessary or excessive, only when it fits the situation and character. I will not be using any slurs, as that's just plain disrespectful, even if some of them apply to me. Credits: Undertale, obviously, created by Toby Fox and Temmie Chang. "The Time Before" by ANinnyMouse42 is the backstory for Sans in this AU with some adjustments (mainly since that was very close to my original idea before I read it and I don't want people to think I copied their masterpiece or smth, if you haven't read it please do so, it's really good). Some things will be in reference to the other books in the trilogy or "From War to Science" by Emotistic-optimistic. If you haven't, read that too. It's really good (along with its sequel). The cover was made by me! Have a good day! (Also, the title is a placeholder, if anyone has any ideas that make more sense, please let me know. I do have some ideas, which are going to be mentioned at the A/N of C
ControlledTale by amilllionnames
7 parts Complete
(I DON'T OWN UNDERTALE. The only characters I own are Bailey and Creame.) All the monsters live happily in the underground: until one human ruins everything. Bailey Hill is a normal, 11 year old girl- until she trips, and falls into Mt.Ebott. Quick to befriend the monsters, Bailey is instantly loved by everyone. When monsters start mysteriously disappearing, Bailey is on the case. What she doesn't know, though, is that a small team, co-led by Undyne and Sans, are working as secret spies in the background. After hearing about the disappearances, Bailey thinks she can solve the mystery- but when Bailey has a shocking realization, she realizes that she might not be so innocent after all. ------------------------------------------- Changes: IMPORTANT: Frisk and Chara don't and never exist(ed) Monsters don't mind the underground, so Alphys never did the experiments. Still Relevant: Mettaton never left, and Napstablook is constantly being featured on his show The amalgamates don't exist since those monsters never fell down. Napstablook and Shyren are now younger than in-game, Napstablook - 12 and Shyren - 14. More on Napstablook- Since Mettaton never left, Napstablook is just shy. Everyone knows each other Alphys x Undyne- Already a couple Frisk and Chara don't and never exist(ed) ------------------------------------------- A note from Emma- Hi hoomans! I hope you enjoy this AU I came up with! Happy reading! 😊 10/4/2020: There IS a sequel coming soon! :D
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Lost Souls- CURRENTLY ON HOLD

18 parts Ongoing Mature

THIS BOOK WILL STOP BEING UPDATED, BCZ I DECIDED TO REWRITE IT TO UNFUCK UP SKME THINGS. CHECK @luciluck-writing ON TUMBLR TO ACCES THE LINK TO THE NEW VERSION. An undertale fanfic with an Undertale AU of my own. This AU is called Luci's Underwitch, check my tumblr(@lucisunderwitch) for more info abt it. This is only part one, I decided to make part two in another book since uhh... This one's a little bit dark and the other is going to be more fun. Warning/TW: This fanfic may contain depictions of self harm, self hate, themes about depresion, mention of suicide(i will mention before each chapter if that part has any of those things, not the whole book will be dark like that); it may and will contain Undertale/Deltarune spoilers aaand a bunch swearings. After Frisk decided that they shouldn't have gone back to their family instead of staying with the Dremurr family, they decide it's time to head back to the underground, to help with moving. This ended up saving their life and mental health, yet other problems remain to be doscovered.