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1. Public Bookmark 21

   Sirius by UnknownArmageddon

   Fandoms: Undertale (Video Game)  

   • Teen And Up Audiences
   • Graphic Depictions Of Violence
   • M/M
   • Work in Progress

   09 Dec 2025

   Tags

   • Graphic Depictions Of Violence
   • Sans/Sans (Undertale)
   • Kross - Relationship
   • Cross
   • Killer - Character
   • Sci-Fi
   • Dystopian
   • Swearing
   • Unfinished
   • Blood and Injury
   • Blood and Violence
   • Rivals to Lovers
   • Assassin Killer Sans AU
   • Bounty Hunter Cross Sans AU
   • i never use ao3 so the tags are lacking. thumbs up emoji
   • Smoking
   • Xtale Sans | Cross (Undertale)
   • Killer Sans/XTale Sans | Cross (Undertale)
   • Knives
   • Alternate Universe
   • Alternate Universe - Canon Divergence
   • Something New Sans | Killer (Undertale)
   • Not Canon Compliant

   Summary

   sci-fi, semi post apocalyptic inspired au in which killer is a rogue assassin and cross is a bounty hunter. things go wrong when cross fails to turn killer in and his employer is on their trail, forcing them to work together to go into hiding.

   Language:

   English

   Words:

   33,018

   Chapters:

   15/?

   Comments:

   41

   Kudos:

   155

   Bookmarks:

   21

   Hits:

   3,192

   Bookmarked by JustAnIdiotArtist

   20 Sep 2024