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1. The little green heart by snowstorm25

   Fandoms: Undertale (Video Game)  

   • Explicit
   • Graphic Depictions Of Violence
   • F/M, M/M, Multi
   • Work in Progress

   30 Dec 2024

   Tags

   • Graphic Depictions Of Violence
   • Sans (Undertale)/Reader
   • Sans/Reader
   • Papyrus (Undertale)/Reader
   • Papyrus/Reader
   • Sans (Undertale)
   • Sans Ensemble (Undertale)
   • Papyrus (Undertale)
   • Papyrus Ensemble (Undertale)
   • Undertale Au - Character
   • Smut
   • Fluff
   • Fluff and Smut
   • Angst
   • Child Abuse
   • Abuse
   • Past Child Abuse
   • Dark
   • Physical Abuse
   • Emotional/Psychological Abuse
   • Verbal Abuse
   • Mad Science
   • War
   • Magic
   • Alternate Universe - Underfell (Undertale)
   • Underswap Sans (Undertale)
   • Alternate Universe - Fellswap (Undertale)
   • Alternate Universe - Swapfell (Undertale)
   • Alternate Universe - Horrortale (Undertale)
   • Alternate Universe - Underlust (Undertale)
   • Alternate Universe - Fellswap Gold (Undertale)
   • Angst with a Happy Ending
   • Sad
   • Ecto-Genitalia (Undertale)
   • Ecto-Tongue (Undertale)
   • Ecto-Body (Undertale)
   • Ecto-Penis (Undertale)
   • Skeleton Sex (Undertale)
   • Skeleton Puns
   • Bad Puns
   • Cannibalism Puns
   • Sans (Undertale) Makes Puns
   • Reader-Insert
   • reader is female
   • Reader Is Not Frisk (Undertale)
   • reader has magic
   • Reader has a Green Soul (Undertale)
   • Angst and Fluff and Smut
   • Fluff and Angst
   • Additional Warnings In Author's Note
   • Psychological Horror
   • Survival Horror
   • Horror
   • Post-Traumatic Stress Disorder - PTSD
   • It Gets Worse Before It Gets Better
   • Dead Dove: Do Not Eat
   • Sans Has Trust Issues (Undertale)
   • Sans (Undertale) Has Night Terrors
   • Dusttale Sans (Undertale)
   • No Incest
   • Reverse Harem
   • Flirting
   • AFAB reader - Freeform
   • Hurt/Comfort
   • Polyamory
   • Other Additional Tags to Be Added
   • Alternate Universe - Mobtale (Undertale)

   Summary

   You and your family are just enjoying a nice day at the park, when a life changing event happens that ruins everything.

   You get taken away to a facility to be tested on...

   Life doesn't feel as peaceful as it once did, you hated your new life.

   "I wish I could just go into those story books I used to read..."

   Language:

   English

   Words:

   85,414

   Chapters:

   11/?

   Comments:

   40

   Kudos:

   151

   Bookmarks:

   41

   Hits:

   3,836