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1. Chasing Your Nightmares by BunnieBabaye

   Fandoms: Undertale (Video Game)  

   • Explicit
   • Graphic Depictions Of Violence
   • Multi
   • Work in Progress

   09 Feb 2026

   Tags

   • Graphic Depictions Of Violence
   • Sans (Undertale)/Reader
   • HorrorTale Sans - Character
   • Dusttale Sans
   • Killer Sans - Character
   • Nightmare Sans
   • Reader
   • Dream! Sans
   • Inktale Sans - Character
   • Reader Insert
   • Reader Is Not Chara (Undertale)
   • Reader Is Not Frisk (Undertale)
   • Reader Has a Red Soul (Undertale)
   • Reader is overworked
   • Post-Traumatic Stress Disorder - PTSD
   • Trauma
   • Childhood Trauma
   • Reader has sleep terrors
   • Post-Undertale Pacifist Route
   • Monsters have been free for 5 years
   • Drama
   • Action
   • Dead by Daylight meets Undertale
   • Kidnapped
   • Stockholm Syndrome
   • Lima Syndrome
   • Enemies to Friends to Lovers
   • Slow Burn
   • Reverse Harem
   • Bad Sanses | Nightmare's Gang (Undertale)
   • Nightmare's Castle
   • Reader loses a limb
   • Killer is horny
   • Horror Is A Sweetheart
   • Dust is comforting
   • Nightmare has a weird way of Caring for you
   • reader is female
   • reader uses she/her pronouns
   • Slight horror aspect
   • Reader is easily jumpscared
   • Reader Kinda has an eating disorder
   • Parental Death
   • reader is poor
   • Reader is a Final girl btw
   • Killer is a little crazy.
   • Canon Sans | Classic Sans (Undertale)
   • makes appearance
   • twisted step family

   Summary

   You're a hardworking girl that has gone through some shit, maybe too hardworking. Okay, maybe your overworked with no time for yourself. But thats okay! At least you have your cozy bed to go to and-- you're not home. Why are there three skeletons chasing you? Whats with the sludgey tentacled one?

   Language:

   English

   Words:

   6,094

   Chapters:

   6/?

   Comments:

   8

   Kudos:

   110

   Bookmarks:

   28

   Hits:

   1,628