Sweet But Psycho (Yandere!Toriel x OC) [Undertale Crossover Fanfic] [[Paused]]
  • Reads 12,449
  • Votes 51
  • Parts 20
  • Time 1h 38m
  • Reads 12,449
  • Votes 51
  • Parts 20
  • Time 1h 38m
Ongoing, First published Oct 09, 2021
Mature
After the events of the neutral route, Ryobo and his brother decided to reset and try everything again.

Once they fell into the Underground, and started the pacifist route, Ryobo couldn't help but feel like there was something very strange about Toriel that will soon take a dark turn after they reached the end....
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A heads up from me, most of the chapters will be based off of the "Yandere Ralsei! AU" by andy-shempai (from Tumblr)

Also, if you haven't played Undertale and Deltarune, please do so you'd know who the characters are.
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Undertale belongs to Toby Fox. I own nothing from him and his characters.

The only characters I own are my ocs.
All Rights Reserved
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62 parts Complete

Everyone has a happy ending. If you're not happy it's not the end . . . . •°•°☆°•°• Y/n (that being you) fell into the underground at the age of 13 and found refuge inside a hidden house in the snowy forest. Fast forward 10 years later still no one knew of her existence. That all changed within the span of a year. First there was a punny skeleton, then a child with a striped sweater, then chaos. Memories of the past resurface, A romance blossoms, Drama rises, Follow y/n as she learns again what friendship, trust, fun and love is. I HOPE you're up for it. •°•°☆°•°• [Warning the story is rated for older teens as it will have: - mild profanity - creepy descriptions - violence (ranging from mild to slightly graphic) - blood - murder - trauma - genocide - suicide (only in one chapter)] _______________________________________ Specials/Extra content: ⤵️ 🎃 Part 1: Available 🎃 Part 2: Available 🎄: Available 🍳 : Available 🔪 : Available Q&A : Available 🎃 Rewrite : coming soon _____________________________ Highest rankings: #2 xreader #1 Undertale #1 Sansxreader #1 Sansxfemalereader #1 Frisk #1 Determination #1 Asgore #1 Alphys #1 Toriel #2 Papyrus #2 Flowey #2 Undyne #2 sans ______________________________________ Credit to artists for cover and any chapter artwork. All characters except for the ones I create belong to Toby Fox, creator of Undertale.