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1. Cardinal Rule by Avatarkayla

   Fandoms: Undertale (Video Game)  

   • Explicit
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   31 Oct 2021

   Tags

   • No Archive Warnings Apply
   • Error/Lust
   • killer/cross
   • Error - Character
   • Lust - Character
   • Nightmare - Character
   • Killer - Character
   • Cross
   • Vampire AU
   • incubus
   • blood sucking
   • wall fucking
   • coven life

   Summary

   The first cardinal rule of the coven is don’t fall in love with a mortal. Nightmare’s discovered Error’s once secret romance with the mortal Lust and now Error must face the consequences of that broken rule.

   Series

   • Part 1 of The Coven Series

   Language:

   English

   Words:

   3,546

   Chapters:

   1/1

   Comments:

   7

   Kudos:

   106

   Bookmarks:

   14

   Hits:

   1,480