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1. Sawbones by Delightfully0

   Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 | Uma Musume - All Media Types, Parahumans Series - Wildbow  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • Gen, Other
   • Complete Work

   14 Jun 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Riley Davis | Bonesaw & Tazuna Hayakawa
   • Riley Davis | Bonesaw (Parahumans)
   • Hayakawa Tazuna (Uma Musume)
   • HRT | Horse Replacement Therapy (Uma Musume)
   • Horsefem | Becoming an Uma Musume (Uma Musume)
   • Tazuna Hayakawa Is An Umamusume
   • Tracen Infirmary
   • Three Goddesses
   • POV Second Person
   • Jack Slash Mentions
   • Tazuna Adopts Bonesaw
   • Bonesaw's Complicated Relationship With Family
   • Bonesaw's Powers
   • Parahuman Powers Are Bullshit
   • Biotinkering
   • Tinkering
   • Existentialism
   • Four Horsemen
   • Bonesaw Is Pestilence
   • Bonesaw Is a Herald of Death
   • What Were The Three Goddesses Cooking With This One?

   Summary

   Bonesaw's life after age 6 can be described as one long, uninterrupted nightmare. Waking up with a pair of horse ears and a horse tail isn't even close to the strangest thing she'd done to herself on a whim. At least, that would be true if she was the one to put those horse parts on...

   Given that Bonesaw's biological failsafes are still intact, that means some weird sh- stuff is happening. She'll need to find out what, exactly, is going on to make sure she keeps being a good girl like her mother said.

   And who the heck is this lady in green?

   Series

   • Part 1 of Quadratic Conundrum

   Language:

   English

   Words:

   2,046

   Chapters:

   1/1

   Comments:

   3

   Kudos:

   22

   Bookmarks:

   7

   Hits:

   734