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1. To Catch The Flame by HoroNoOji

   Fandoms: ウマ娘 | Uma Musume - All Media Types  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   26 Oct 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Agnes Tachyon/Trainer (Uma Musume)
   • Agnes Tachyon (Uma Musume)/Original Male Character(s)
   • Agnes Tachyon (Uma Musume)
   • Trainer (Uma Musume)
   • Original Uma Musume Character(s)
   • Manhattan Cafe (Uma Musume)
   • Jungle Pocket (Uma Musume)
   • Agnes Digital (Uma Musume)
   • Dantsu Flame (Uma Musume)
   • Akikawa Yayoi (Uma Musume)
   • Gold Ship (Uma Musume)
   • I Wrote This Instead of Sleeping
   • Autistic Agnes Tachyon (Uma Musume)
   • Autistic Characters
   • I'm Bad at Tagging
   • Agnes Tachyon is Bad at Feelings
   • Alternate Universe - Uma Musume: Pretty Derby Fusion
   • idk what else to tag
   • im doing this as i watch
   • Asthma
   • he'll get over it lol
   • Science Experiments
   • Original Male Character - Freeform
   • Alternate Universe - Canon Divergence
   • AI assisted

   Summary

   Prism Amamiya was built to analyze speed, not experience it—his childhood asthma made sure of that. But being assigned as Agnes Tachyon’s trainer means accepting that safety guidelines are mere suggestions.

   However, when an accident happens in the Lab, Prism finds himself stepping onto the turf alongside Tachyon as her equal, her pacer, and the ultimate puzzle she’s determined to solve.

   Language:

   English

   Words:

   176,571

   Chapters:

   9/?

   Comments:

   4

   Kudos:

   8

   Bookmarks:

   5

   Hits:

   427