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1. Atone and Survive by c00lsk3l3t0n95

   Fandoms: Undertale (Video Game)  

   • Mature
   • Graphic Depictions Of Violence
   • Gen
   • Work in Progress

   04 Jul 2026

   Tags

   • Graphic Depictions Of Violence
   • Papyrus & Sans (Undertale)
   • Papyrus (Undertale)
   • Sans (Undertale)
   • Undyne (Undertale)
   • Alphys (Undertale)
   • Asgore Dreemurr
   • Toriel (Undertale)
   • Flowey (Undertale)
   • W.D Gaster (mentioned)
   • Sans is a Bad Brother
   • Papyrus (Undertale) Needs a Hug
   • Younger Brother Papyrus (Undertale)
   • Papyrus (Undertale)-centric
   • Papyrus (Undertale) Knows More Than He Lets On
   • Sans is a Mess (Undertale)
   • Sans is Bad at Feelings (Undertale)
   • Sans is Having a Bad Time (Undertale)
   • This Is Why We Can't Have Nice Things
   • Papyrus is Having a Bad Time (Undertale)
   • Implied/Referenced Self-Harm
   • Suicide Attempt
   • Suicidal Thoughts
   • Papyrus is The Roaring Knight
   • It's not relevant but it's practically my calling card
   • Flowey (Undertale) Being an Asshole
   • Sans is Awful to Begin With
   • Mental Health Issues
   • W. D. Gaster is Papyrus and Sans' Parent
   • Scientist W. D. Gaster
   • W. D. Gaster Being An Asshole

   Summary

   Sans used to be sick of Papyrus, really, he did. But now things have gone too far, and he's not sure if he can make up for what he's done. Some things simply cannot be fixed.

   Inspired by @lafillehonteuse's Bad Brother AU on Tumblr.

   Series

   • Part 5 of Papyrus

   Language:

   English

   Words:

   8,492

   Chapters:

   4/?

   Comments:

   6

   Kudos:

   27

   Bookmarks:

   6

   Hits:

   300