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The Crown and the Cleaver | Horror Sans x Reader by heelycup
Fandoms: Undertale (Video Game), Sans AUs - Fandom, Horror Sans - Fandom, Horrortale - Fandom
23 Oct 2025
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⚠︎ 𝗣𝗹𝗲𝗮𝘀𝗲 𝗻𝗼𝘁𝗲: Artwork by myammya on Tumblr. ⚠︎
- Language:
- English
- Words:
- 21,586
- Chapters:
- 10/10
- Hits:
- 30
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Summary
A skeleton invades your home, claiming your universe will collapse if you don’t help him!
You’re 100% sure this monster is on drugs, yet you go along with everything he says anyways.
Why?
Because you have nothing else better to do.
Series
- Part 1 of Bone-Junctions & Conjunctions
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Monsters have appeared from a mountain, in your town! Interested in this new development you head home with high hopes. Sadly it seems humans will be humans, and for some reason you keep getting caught in the cross fire. Luckily you've made some new friends to help you out along the way!
You were just about to head into the nearby town when your phone went off, it was a text. From Otto of all people. A video of him, and what looked like monsters walking behind him. "You should come home (Y/n), things just got interesting."
Reader is female (sorry) there will be smut at some point, don't know when though...
Series
- Part 1 of Blood N Bones Stuff
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You live in a bad situation, not as bad as some however it is bad enough that you have to find a way out. you spend your days hiding in your trusty SUV searching want ads to find a new place to live. a decision to expand your search from the local aria leads you to a post offering free room and board for cooking and cleaning. answering the ad leads you to meeting your potential new landlord in a monster bar on the other side of the country. what you didn't expect when you made the trip was that you would be living in a house full of skeletons... guess everyone has a few in their closet.
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Demon Hunting is practically the family business.
When you were a child, a demon killed your entire family. You were taken in by the same guild your parents worked for. The last demon hunter of your family, you want to prove that you can succeed in the legacy. You trained your entire life to take vengeance on the creatures that ruined your life.
You finally got your chance when your initiation exam was scheduled. Fate decides that you will change history in a slightly different way than you had thought. You never could have anticipated running into the Seven Deadly Sins themselves on your first night out.
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Noir was forced to marry an old perverted tyrant but just before they could say 'I do' the palace was invaded and the king disposed. The new ruler gave him the choices: Leave, send home or stay. So Noir boldly proclaimed he'd marry the new ruler.
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After the battle, you look at your hands... why did I became a skeleton? by Quinme
Fandoms: Undertale (Video Game)
22 Oct 2025
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Your dear friend was in danger, she got attacked by a mysterious skeleton with a big blade. You did your best to protect her with a weapon that you always take with you anywhere, but this introducer was a powerful enemy. After a long battle, you lay on the ground, coughing your own blood. Everything hurts, but at least your friend had time to run away. It's clear that you were dying, this is probably the end. But you can do something before taking your last breath! You promised your father to stop using magic because it's too chaotic, but what choice did you have anyway? Using the remains of your power and reaching for your soul, you use a spell to end the skeleton and take him with you in the hugs of death! Silence... did it work?
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So, I heard you like skeletons...
Reader insert prompt fills for @skeletonh0e's sans-centric Kinktober challenge on tumblr
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Here we are again! Another series of Undertale one-shots following the Fictober prompts and featuring the skeleton brothers as love interests to either my nameless or named girlies.
Just like the past two years, if you'd like any of these to be turned into fics, then please let me know in the comments! If enough people show they're interested, then it'll be added to my list of future fanfics! Five requests are what's needed for them to be added.
And if you choose to wait till the end of the month to read, that's okay! Requests can be made up until November 7th, when I post the list of the lucky winners!
Hope you all enjoy!
Series
- Part 3 of Fictober
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You died. Sans died. But in the void between life and death, you found each other, and a chance to live again.
Merged into one body with a dying child skeleton, you wake up in the middle of a brutal war between humans and monsters. With baby Papyrus to protect and your brother Gaster's experiments turning you into something more (and less) than human, survival means running, fighting, and holding onto whatever shreds of innocence you can preserve.Or: Isekai War AU where you get hit by Truck-kun, merge with Sans, become a child soldier, and eventually end up in a polyamorous found family with 14+ skeletons. Features: PTSD, creative use of green magic, so many puns, and the aggressive pursuit of a normal childhood for Papyrus.
no stripes or brother/brother are involved in romance.
Ask not for whom Truck-Kun honks, Truck-Kun honks for thee
This is entirely plotted out and outlined but will not have a set release schedule
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You'd never expected to be one of those people who bonded with a random stray, and if you did, you never expected it to turn out like this. The tiny... blob of an animal was cute, affectionate, and melted your heart before you'd even named him. Unfortunately, not everything is as it seems. You've met this lovely creature before, and he definitely remembers you...
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On the day of their 13th birthday everyone has a name appear somewhere on their body. A script different than their own, but still familiar and comforting nonetheless. It's said to be your soulmates handwriting and, when you make physical contact for the first time, it's to change to the color of their eyes. Or so the rumor goes. But everyone knows that's just an old wives tale since finding yours is so far and few between.
But then there's you. What the hell are you supposed to do with 12 soulmates?? At least your odds are better than most...
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A little bird flies the coop, clipped wings longing to soar, if only until she hits the ground.
Can she pick up the pieces her shattered heart and relearn how to live?Just, pure self-indulgence, really. Expect lots of fluff and shenanaganery.
My own spin on post-pacifist timeline. The monsters are free, but confined to one city, and kept secret from the world. A social experiment is run to see how humans hold up under long term magic exposure and if coexistence is really possible.
Our character, Robin, accidentally gets involved, and discovers a lot more than just magic as her life becomes increasingly intertwined with the lives of monsters of Mountainside. -
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insomnia is a pain—so is anxiety, it seems you're not the only one who agrees with that statement.
you wake up in the middle of the night again. wow, what a surprise. and your muddled brain says it's time for a midnight walk.
never trust your gut, especially if it's sleep deprived.
a skeleton crashes into you. and that is the thing that changes your life? For the better or worse, you hope it isn't the latter, and this strange skeleton doesn't murder you.
but you two seem to be more similar than you thought.
alternatively—you can't sleep, so you go for a walk. who knew that would change your course of life?
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The thing about soulmates is, no matter what pries them apart, they always...always find a way back together
Chapters 1-3: Prologue
Chapters 4+: Main Story
*Chapters set to auto release every Saturday!
*This is a rewrite of I Have The Power of Gaster AND Anime On My Side. Same concept, with a bit of a serious feel.*
**Please be aware that this is not like my usual reader-inserts!! This story is in 3rd person pov, very vague description of a female reader. Unnamed (Pet names only). No use of y/n, y/e/c etc.**
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When life gives you a gun, you're gonna shoot. by Quinme
Fandoms: Undertale (Video Game)
21 Oct 2025
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One moment you were on the call with your friend, the next you are in a shady dark alley, pressed by... crocodile with fedora?
Life is confusing, and you have no damn idea where you even are and what will come next.
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You died.
Plain and simple, one moment you were there, strapped to the table in that ever so dark laboratory. Then a loud cracking had occurred - the sound of your own soul giving up. It had been deafening, like ice breaking beneath your feet. That purple crystalline heart shattering like fragile glass, unable to persist any longer.
The testing had been too much for you, not even you could persevere through it. Not after months—years.
You…died?
Then why were you here? More importantly where? What had
Gasterdone? And why did reality seem to glitch in and out with every painful thrum from where yoursoulshould be? And who were these skeletons that felt oddly familiar to yoursoul.>> Persevere?
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Gonna try my hand at this for the first time! These will all be Sans/ Reader, but might play around with various AU's I don't normally mess with.
Might also sneak some canon or not canon scenes in here from my fics if they fit hehehe.
Also going to try to do some of these with Gender Neutral readers, which I am not very good at but gonna get some practice in! GN Reader will stand for Gender Neutral reader.
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One day, you meet a skeleton. He's strange yet funny, easy to get along with. A few days later, you meet him again. You don't remember him, but he remembers you. He remembers every time you two first met. It's eating away at him, and you're none the wiser. Is it even worth telling you? Wold you believe him?
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Here Comes the Bride by FandomWorld9728
Fandoms: Undertale (Video Game), Underfell - Fandom, Underswap - Fandom, Swapfell red - Fandom, Fellswap Gold - Fandom, Horrortale - Fandom, Underlust - Fandom
20 Oct 2025
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You were so excited to finally get married to your long time fiancé, only for him to leave you for another girl with nothing but a note. Lucky for you, your two best friends were there to help you through this rough patch of your life.
Series
- Part 12 of Undertales Across the Multiverse
- Part 8 of Papyrus/Reader Fics
- Part 8 of Sans/Reader Fics
- Part 1 of Here Comes the Bride