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1. This Old Broken Heart by saturnveria

   Fandoms: Undertale (Video Game), Underfell - Fandom, Horrortale - Fandom, underswap, Swapfell - Fandom, G!Pap -Green, G!Sans - G  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • F/M, Other
   • Work in Progress

   09 Mar 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Sans (Undertale)
   • Papyrus (Undertale)
   • Red (Underfell)
   • Edge (Underfell)
   • Axe (Horrortale)
   • crooks (horrortale)
   • Stretch (UnderSwap)
   • Blue (Underswap)
   • Mutt (Swapfell)
   • Black (SwapFell)
   • Abuse
   • Rape/Non-con Elements
   • Past Rape
   • Healing
   • Therapy
   • friendships
   • Friendships forged in fire
   • Reader-Insert
   • reader is y/n
   • Reader will be ok
   • reader is strong
   • Untrusting Sans
   • Reverse Harem
   • Mild torture
   • Drugs
   • Non-consenual Drugging

   Summary

   TOBH is about a sexual assault survivor, one that is found by the fell boys in an alley after running in a blind panic from someone from her past. She befriends some of the boys, will come to terms with her past, and eventually will regain herself.

   Language:

   English

   Words:

   80,592

   Chapters:

   38/?

   Comments:

   16

   Kudos:

   96

   Bookmarks:

   23

   Hits:

   1,957