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Frisk absorbs Sans' soul after an unintentional genocide run. In her grief, she resets to try to fix it and make everything right. However, things don't go as planned and she ends up in a violent version of the Underground. With Sans stuck in her head, she now has his magic to help them survive and escape. But Frisk is committed to sparing. It will be difficult to spare when everyone here wants to kill her. What will she and Sans do?
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Wrong Warp by Hideyoshi Faz (FreddyFazbutt)
Fandoms: Deltarune (Video Game), Undertale (Video Game)
16 Jul 2025
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A fic in which Frisk dies in undertale and is reincarnated as Ralsei's little sibling in the closet dark world. How will the prophecy be affected by the addition of Frisk?
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Papyrus hadn't been worried! ...Well. Maybe he had been, just a bit.
It'd been a while since anyone had heard from the human, so he called to check on them. But when a conversation revealed just how young they were, he realized things had to change. They were all on their own down here. And... They had nowhere to go.
Well! If there was no one else to take care of the baby bones, Papyrus would just have to do it himself!
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Sans was trying to get through life and ignore the apathy that had settled over him for Papyrus’s sake. It was just so hard to care about anything when he knew none of it mattered. But when Papyrus had him bring the anomaly home like a lost puppy, things stopped adding up.
How could such a sweet kid be responsible for the relentless time loops?
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Frisk was used to being on their own, and they were pretty good at taking care of themself. But—Well. ...Dying hurt. They just wanted to get back to the surface! With Undyne in the way, they were hopeless.
So when a phone call from Papyrus somehow ended with an offer for them to crash at his house, Frisk could only be relieved for the break.
They could afford to rest for a while, right?
Series
- Part 1 of Finding Home
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You first see it when you’re half-distracted, slamming numbing palms into walls to see just one more secret, one more passage. You open the first door you see and it’s there, greyed out and hollow, not so much standing as just existing in the center of the room. Its face looks cracked, forever stuck in unmoving pieces, a stillness so unnatural that it sends a bolt of fear through your chest. You freeze. It doesn’t react.
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Bewitched, Bothered, and Bewildered by CrimsonAndCloverOverAndOver
Fandoms: Undertale (Video Game), Mafiafell - Fandom
08 Jul 2025
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Cherry Sweet is a rather unconventional performer at a club like 'The Velvet Crop' with her thick thighs and plush stomach, but she does well enough for herself. The patrons enjoy a bit of variety, but what will she do when she attracts the attention of a monster--and a mob boss monster at that?
Featuring a 1920's vibe with music from the 20's-60's, a meet-not-so-cute developing into a partnership, and a spitfire, plus-sized FMC. I hope you all enjoy!
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That golden sunset is always temporary.
Frisk doesn’t know why, but every time they get their “happy ever after,” the timeline...
It just… stops.
No light.
No sound.
No sensation.
Just oblivion.It all turns
D A R K
D A R K E R
Y E T D A R K E R
And they reset.
Over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and
What's even the point?
They tried everything.
It's hopeless.
They should just give up.
*But it refused.
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This is a retelling of Undertale with some parts based on my experience with the game. The story follows Hiro(?), a young boy who fell into the Underground and tries to make his way out, meeting the many monsters who live there. But with the odd visions that plague his mind and an equally odd skeleton popping up everywhere he goes, can Hiro figure out what’s happening before he becomes the seventh Soul needed to free the monsterkind?
Series
- Part 4 of Necro Shift
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Chaos chat: Featuring a pirate, a hero, a skeleton, a trickster, a videogame character with pica, a gremlin Worker drone, and a Motherly Therapist by AxoTheAxolotl318
Fandoms: One Piece (Anime & Manga), Persona 5, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Undertale (Video Game), 痛いのは嫌なので防御力に極振りしたいと思います。| BOFURI: I Don't Want to Get Hurt so I'll Max Out My Defense. (Anime), Sonic the Hedgehog (IDW Comics), Murder Drones (Web Series)
09 Jun 2025
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4 people get put into a chat room via a floating screen Infront of them
a tired Funkle
A child who can't tell he's worth more then his new power
a traumatized money hungry thief
and a teen who just want the year to be over
later a girl who dosn't know she's giving the admins grey hairs
a drone
and a anthropometric animal also get the chat
all mentioned items/characters belong to their owners unless it's a item i make like the akuten akuten no mi
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Having 1 HP isn't easy, as Sans can attest. Here's a bunch of instances where Sans gets hurt more than he should.
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- Part 2 of Not Skeletwins
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Sometimes Frisk has to wonder, how on earth did Sans and Papyrus manage to live on their own as long as they did?
After the monsters were set free, Toriel, the skeleton brothers and Frisk all moved in together, creating their own little makeshift family. However, with great family comes great stupidity. At least, that's how Frisk would describe it.
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- Part 1 of Not Skeletwins
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Compassion, huh? Seems that's out of fashion nowadays.
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10/31 : 2016
Series
- Part 10 of Inktober Prompts
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What if Undertale was rewritten in a way that made sense to put in on AO3?
An Undertale fic that retells the entire story, just in fanfiction format, with my own interpretations of the characters and story.
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It is boring. Time to find a new toy to play with. Doesn't matter if the toy wants to play or not.
Series
- Part 1 of Trash Bin of Undertale Concepts
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That Moment When Frisk Falls Down the Mountain by Ph03N1X_Gl17cH
Fandoms: Undertale (Video Game)
31 Oct 2024
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- Part 2 of HallowTale: The Multiverse's Halloween
- Language:
- English
- Words:
- 750
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 32
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Under!Kaisen by Mr_Blorp
Fandoms: Undertale (Video Game), 呪術廻戦 | Jujutsu Kaisen (Anime), 呪術廻戦 | Jujutsu Kaisen (Manga)
28 Oct 2024
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Transmigrator OC chooses Undertale as the universe for his next incarnation to go into, receiving Sukuna's power as a boon. As a consequence, Undertale's universe is amalgamated [heh] with Jujutsu Kaisen's, and shenanigans ensue. There might be fluff, there will be angst. Names will be taken and asses will be kicked. MC will cook. Sukuna will cook [and get cooked]. Mahito is ABSOLUTELY getting cooked. Might cook Flowey. Toriel will cook Asgore. What is Kenjaku cooking??
⚠️THIS PROJECT HAS BEEN SHELVED⚠️
No new chapters from a good long while, unfortunately...Note: this will end up being a very canon-divergent story that only uses Undertale and JJK as a basis for the stuff that happens and will not rigidly follow a number of established facts. A number things will stay consistent, obviously, but things like the power system [especially JJK's Curse system] will be carried over much more loosely.
There will also be smut. It won't come often, but there will be smut. -
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Pancake is an unsual girl - strange as it can be. Gothic in appearance, she only seems to really dress up when she has somewhere important to go - otherwise she only wears underwear everywhere because shes too lazy to dress anything else. While on a morning run on MT. Ebbott, Pancake falls down into the underground... right in the middle of Frisk's pacifist route. Making now, 2 humans underground - can sans really have any break?
Series
- Part 1 of Pancake and the Skeletons
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Butterfly weed, forget-me-nots, snapdragons, black-eyed susans, purple columbine, buttercups... and purple hyacinth.
The hanahaki came hand in hand with Frisk's reset powers, and it ebbed and flowed as Frisk's loved ones forgot them and then grew to love them once more, repeating time after time. But this was it—there would be no more resetting. Frisk's powers were gone...
And one case of hanahaki remained.
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Chara and Frisk have a picnic on the surface, and are joined by an expected, unexpected guest.
(Two siblings, and the child they co-parent together.)
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To protect your secrets, how far are you willing to go?
This is the dilemma that Papyrus, the royal guard's captain of Snowdin town is facing since he accepted to protect the last fallen child. What he thought would be a simple task is slowly driving him away from his guard's duty, at the worst time possible.
When he finally understands something is really wrong with Undyne, his rival and only friend, it's too late. Overnight, the general announces to him that he is now in charge of the royal guard and disappears from his life.
Even if he tried, Papyrus couldn't resolve himself to let her go without knowing why she gave up on everything in one night. However, by trying to dig out too many secrets, Papyrus has to face a lot of problems. Threats, intimidation, someone is trying to force him to give up.
But the more he searches, the more he realizes all the tracks lead to Asgore. The King is known for his impeccable justice and his absence of mercy. If he doesn't give up, he might lose way more than just his job.
Split between his vocation and his friendship, Papyrus will have to make a choice.
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Frisk is nervous starting at a new school.
Series
- Part 12 of Undertale aus with kid reader!