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1. Opera, Ardan, and the Slice of Cake Called Life by allusivegrey

   Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game)  

   • Not Rated
   • Creator Chose Not To Use Archive Warnings
   • F/F
   • Complete Work

   13 Mar 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Mejiro Ardan/TM Opera O
   • Biwa Hayahide & TM Opera O
   • Sakura Chiyono O & Mejiro Ardan
   • TM Opera O (Uma Musume)
   • Biwa Hayahide (Uma Musume)
   • Sakura Chiyono O (Uma Musume)
   • Mejiro Ardan (Uma Musume)
   • Birthday
   • Slice of Life
   • Comfort No Hurt
   • Fluff
   • Rarepair
   • Oneshot
   • Sappy
   • Birthday Party
   • Birthday Cake
   • Party
   • tm opera o birthday fic
   • first umamusume fic
   • i love rarepairs

   Summary

   It is T.M Opera O's birthday, and to celebrate she goes to celebrate with her beloved, Mejiro Ardan. All she can hope for is that the surprise runs as smoothly as it possibly can with setting up.

   Language:

   English

   Words:

   3,485

   Chapters:

   1/1

   Kudos:

   10

   Hits:

   91