Adult Content Warning

This work could have adult content. If you continue, you have agreed that you are willing to see such content.

• Yes, Continue
• No, Go Back

If you accept cookies from our site and you choose "Yes, Continue", you will not be asked again during this session (that is, until you close your browser). If you log in you can store your preference and never be asked again.

1. The Thing That Should Not Be by FriendlyNeighbourhoodMetalhead

   Fandoms: Chainsaw Man (Manga), Chainsaw Man (Anime)  

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

   30 Oct 2025

   Tags

   • No Archive Warnings Apply
   • Angel Devil/Hayakawa Aki
   • Hayakawa Aki
   • Angel Devil (Chainsaw Man)
   • Alternate Universe - Supernatural Elements
   • just in a different way I guess
   • Succubi & Incubi
   • Succubus Angel Devil
   • Mean Hayakawa Aki
   • Rough Sex
   • Smut
   • Tail Sex
   • Fingering
   • Fisting
   • Non-Human Genitalia
   • Hair-pulling
   • sex-negative language
   • whatever is happening is toxic af
   • Mutual toxicity
   • Masturbation
   • Spitting
   • Verbal Degradation
   • Mind the Tags
   • It/Its Prononuns For Angel Devil
   • Top Hayakawa Aki
   • Bottom Angel Devil (Chainsaw Man)

   Summary

   For all the repulsion, the creature is also beautiful, if only by virtue of being created to feed off human lust.

   Hayakawa Aki hovers in the doorway of his apartment, lips drawn together until they're nothing but a thin, faint line. He chastises himself for finding the creature alluring. It's just a succubus. Disgusting. Dirty. A demonic whore. And Aki knows better.

   or: Aki finds a starving succubus in front of his apartment

   Language:

   English

   Words:

   2,145

   Chapters:

   1/1

   Comments:

   6

   Kudos:

   148

   Bookmarks:

   13

   Hits:

   2,247