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𝐓𝐇𝐄 𝐅𝐈𝐍𝐀𝐋 𝐃𝐑𝐀𝐅𝐓 ✧ 𝐁𝐀𝐃 𝐒𝐀𝐍𝐒𝐄𝐒 𝐗 𝐑𝐄𝐀𝐃𝐄𝐑 by chaesteria
Fandoms: Undertale (Video Game), Undertale AUs - Fandom
01 Mar 2026
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Summary
Remember the times you joked about "dying for your fictional crushes"?
Well, one chronically online, strawberry patterned pajama-clad Bad Sanses fangirl actually did—courtesy of a pixelated meme dog and what might be the universe's worst case of writer's block. Now, she's stuck in the Undertale multiverse with nothing but her AU knowledge, a deeply unserious System guide named Selene, and the terrifying realization that her beloved skeletons don't blush on first meeting.
They try to murder her.
Armed with terrible skeleton puns, niche references, and a soul that might be powered by sheer cringe, her new mission is clear: befriend the murderous skeletons, grind enough EXP to not die (again), and somehow stop the multiverse from collapsing-all while convincing a glitchy skeleton that she's not the weirdest thing he's seen today. (She is.)
It's a self-insert isekai where the only thing stronger than Determination is a fangirl's ability to ignore red flags.
[ I curse ao3 and its limited description. Uploaded this on Wattpad and Quotev as well! More active over there, this is my first released fic here :) It’s actually more serious than I made it to be lol! ]
Published: February 1, 2026
Bookmarked by Jade_Gate
20 Mar 2026
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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
The background is finally done! If you dont like war AU's you can officially skip to the middle of Chapter 10 and it becomes a 10 skeleton story.
Bookmarked by Jade_Gate
18 Mar 2026
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You ended it all one fateful night, but instead of dying, were swept up in a world of war with a bundle of a skeleton in your arms. With a crazy scientists chasing you for something you don’t even remember doing, figuring out how to escape with your little brother still alive, a life that isn’t quite yours, lots of angst, and even more comfort… this will be quite the wild ride.
Now including a skeleton-house that is becoming VERY concerned for your mental wellbeing, (buried after the much-needed war-trauma,) you have to deal with a whole ‘nother group of wacky skeletons judging you. AGAIN.But… in order to have the best comfort fic, you sometimes need to have the worst angst beforehand.
Or, as Gaster once said… you need to break a few eggs in order to make an omelette. :]
Bookmarked by Jade_Gate
18 Mar 2026
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Waking up as a skeleton surrounded by more skeletons - all of whom you have no idea who they are- is definitely not your cup of tea. Even more unpleasant, the person whose body you stole is still inside and now your stuck with a very unhappy human-hating skeleton! Yikes, sucks to be you...
- Language:
- English
- Words:
- 79,870
- Chapters:
- 30/?
- Comments:
- 439
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- 1,794
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- 322
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- 40,960
Bookmarked by Jade_Gate
18 Mar 2026
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You're not sure when you started to feel eyes on you, but the intensity and weight from them feels frightening. Especially as the days go by, and a traveling horror circus comes to town. Especially when the cast members hold an interest in you, especially the Pierrot and the Harlequin.
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Time Travel - The Freak Circus - Where the MC/Reader dies of old age, leaving two Circus Members heartbroken. They wake in the past before they set up the circus, as they plan on taking MC/Reader sooner this time.Series
- Part 1 of Freak Circus Fics
- Language:
- English
- Words:
- 34,237
- Chapters:
- 12/?
- Collections:
- 1
- Comments:
- 110
- Kudos:
- 791
- Bookmarks:
- 117
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- 15,995
Bookmarked by Jade_Gate
15 Mar 2026

