1 - 20 of 484 Works in Agnes Tachyon (Uma Musume)
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Umamusume Pretty Derby: Rise of Team K! by Heavy5Command
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), ウマ娘 シンデレラグレイ | Uma Musume: Cinderella Gray (Anime)
18 Dec 2025
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Taking place after Beginning of a New Era. Tachyon wants to return to running again with her friends, but she needs a new trainer. Someone who can tolerate her, and bring her back to her feet and help her run and win.
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Farcical Particle by Mordred_Doombitch
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game)
18 Dec 2025
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Jungle Pocket. Derby Umamusume. Japan Cup Umamusume. The Strongest Umamusume. And guinea pig to Agnes Tachyon.
Finding herself crushing over Tracen's mad scientist, Pocket runs head-first into pursuing the oddball.
Loving Tachyon won't be easy, especially not while being the subject of her bizarre experiments that aim for the heart of umamusume's potential.
(A collection of generally unserious Poketaki vignettes written as a screenplay.)
Series
- Part 1 of Umamusume: Legends of a New Era
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💜The ashes of the past💜 by Ronnysaurito
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime), 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 シンデレラグレイ | Uma Musume: Cinderella Gray (Anime), Subarashiki Kono Sekai | The World Ends With You (Video Games), この素晴らしい世界に祝福を! | KonoSuba: God's Blessing on this Wonderful World! (Anime & Manga), ダンジョンに出会いを求めるのは間違っているだろうか | DanMachi | Is It Wrong to Try to Pick Up Girls in a Dungeon? (Anime), Call of Duty (Video Games), 盾の勇者の成り上がり - アネコユサギ | Tate no Yuusha no Nariagari | The Rising of the Shield Hero - Aneko Yusagi
18 Dec 2025
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Summary
-..El rastro se ha perdido, es como si simplemente hubiera dejado de existir, No hay rastro alguno de el, simplemente no está, ¿habrá muerto en las instalaciones del gigante?...¿Huyo?...¿O solamente está jugando a las escondidas?...El misterioso caso de la desapareción del Dr. Satoru gojo sigue y seguira siendo un enigma y misterio gigante...que quizás nunca tenga respuesta...-
Radio#1 acabada....
- Language:
- Español
- Words:
- 7,839
- Chapters:
- 2/?
- Hits:
- 43
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All I want for Christmas is You by Anonymous
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)
18 Dec 2025
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She hated Christmas, but that was to be expected considering the bad luck that seemed to befall her during that time of year. Burdened by bad memories from the past and haunted by horrible nightmares, Agnes Tachyon got out of bed on December 25th on the wrong side of the bed, ready to send anyone who crossed her path to hell.
However, this particular Christmas, her world is about to be shaken by three spirits.
Three ghosts with familiar faces, dressed in their finest attire, reach out to Tachyon, with the purpose of guiding her through events that are key to her past, present, and future, and that could change the course of her life forever.*Based loosely on Charles Dickens' classic A Christmas Carol*
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Uma Musume: Glory of Losers by Sleeplessbet241
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 シンデレラグレイ | Uma Musume: Cinderella Gray (Anime)
18 Dec 2025
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Shiny Trajectory entered Tracen Academy, finally. And with that, her racing career begins. Recruited by the trainer of Team Caethys, Yasuka Muryo.
This is, the embers of the so-called loser.
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The Desert of the Steppe by Zackyali958
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)
17 Dec 2025
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A scarred desert endurance legend, Omar al Sahra enters Tracen Academy not to race, but to teach discipline and survive in peace after a life of loyalty and hardship. Stoic and unwilling to run for glory, she's in a world of cheerful racers which now she has to teach but Tracen is not the world Omar knows. Where she expects nothing much, she finds cheerful girls who sprint for joy, argue over snacks, cry over losses, and shine with dreams. Instead of grim determination, she sees innocence, playfulness. And now she has to teach them these what discipline truly means but also unintentionally changing herself
In a world made of bright tracks and cheerful races, a wandering endurance icon must now become something she never imagined she could be
A teacher or something even more
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they shoot a horse with a broken leg by witless_chimera
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)
17 Dec 2025
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...so what do they do to a horse with a broken back?
—OR
Agnes Tachyon suffers a much more serious set of injuries after an accident at the Satsuki Sho. Now she has to take a trip down the long road of recovery, with the help of two friends.
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That Time I got Transmigrated as a Trainer in Umamusume by explossion_connoisseur
Fandoms: Umamusume - Fandom
17 Dec 2025
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Bruh dont you just hate it when you get sent to umamusume and have to train umas. happens to me every sunday. And Umamusume belongs to Cygames and whatnot, dont ban me. I'll try to update regularly, no promises though.
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A Collection of Short Romance Stories with Agnes Tachyon and Jungle Pocket, set following the fateful 2001 Japan Cup, and the weeks and months following. I'll add many, many chapters, so just take each one as a small glimpse into a slow-growing relationship of two Umamusume and their journey of self-discovery and emotional bonding.
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a taste of your own medicine by agnes twinkyon (hayateyuuto)
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)
17 Dec 2025
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As usual, Agnes Tachyon attempts to get one of her involuntary guinea pigs—Manhattan Cafe, her most valued guinea pig—to drink yet another one of her nefarious concoctions for an experiment. Unbeknownst to Tachyon, Cafe decides to take a bolder approach to switch the roles in this everyday commotion.
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Pushed too far on the wrong track by Cleverly_named_guy
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)
16 Dec 2025
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Summary
Café loves Tachyon, so much that it hurts. So much she’s willing to hurt just for her.
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You're Important by pyrewinkle
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)
17 Dec 2025
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After learning that Pocket has been acting strange, Tachyon investigates.
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Stop touching Tachyon's potions by ttoxicyuri
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)
16 Dec 2025
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Gold Ship's latest stunt somehow managed to make her and McQueen switch bodies. They each take it as well as you'd expect, which is to say one of them ends up having the time of her life while the other is less than impressed.
Two guesses on who's who.
Series
- Part 2 of Gorumaku Week 2025
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Second Chance by otblock57
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game)
16 Dec 2025
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Summary
Agnes Tachyon watches his daughter make her second try for the Arima Kinen. (AU with IRL relationships and genders.)
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El Engaño hace Añicos la Inocencia by BlackErrorImpostor240
Fandoms: Zenless Zone Zero (Video Game), Lies of P (Video Game), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game)
16 Dec 2025
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Billy the Kid es un robot super avanzado que fue creado por una chica caballo conocida como Agnes Tachyon, este robot terminó formando lazos muy importantes con varias Umas y humanos, siendo visto de diferentes maneras, pero en general, como un gran amigo gracias a la personalidad tan optimista y alegre que tenía
Un día, se esparció la noticia de que en otro lado del mundo habían encontrado una fuente de energía llamada "Ergo", la cual era lo bastante potente como para crear robots mejorados, mismos que llevaban el nombre de "Marionetas"
Billy al saber de esa noticia, pensó que el Ergo podría ayudar a su madre a crear lo que siempre había querido, por lo que decidió irse por su cuenta dejando una carta donde decía que iría a buscar algo importante
Pero por desgracia...
Termino adentrándose en el peor infierno que podría conocer
¿Podrá Billy sobrevivir a este infierno?
Y en caso de que logrará sobrevivir...
¿Su optimismo e inocencia seguirán intactos? ¿O serán rotos por la crudeza de Krat?
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orient express by Anonymous
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game)
16 Dec 2025
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Summary
Tachyon and Cafe are aware of how each other feels, but they aren't ready to show it emotionally. Instead, they show it physically.
*Name is based off of Agatha Christie's Murder on Orient Express.
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A Hopeful Dream by Etchan
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)
17 Dec 2025
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It’s the end of the first year at Tracen and Jungle Pocket is finally at the starting gate of her first G1: The Hopeful Stakes. She’s fired up, arrogant, and ready to prove she belongs at the top.
But she isn't the only one on the track. There is a monster in white waiting in the gate, and the gap between them is terrifying.
In the aftermath of a crushing defeat, Jungle Pocket finds herself broken - until her quiet, "doormat" Trainer finally finds his voice. -
Uma Musume: Hero's Journey by Completely_Delusional
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 シンデレラグレイ | Uma Musume: Cinderella Gray (Anime)
17 Dec 2025
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"A hero (feminine: heroine) is a real person or fictional character who, in the face of danger, combats adversity through feats of ingenuity, courage, or strength."
An adaptation of Deep Impact's 2005-2006 career within the Uma Musume world.
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That's not what I meant by “I would do it different”! by Puenktchen
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)
15 Dec 2025
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Hideaki is at the end of his wits. Less than a year ago, his big dream came true—a job as a trainer at the prestigious Tracen Academy. But things just aren't going well. His last chance? Gold Ship, the terror of the racetrack! And no matter how hard he tries, he just can't reach the Umamusume. But maybe all he needs is a different perspective, a different angle to understand what's going on with the girls. Good thing the three goddesses are more than willing to give him that opportunity.
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Tachyon: Racy Experiments by Gaijin_Trainer
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)
15 Dec 2025
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This is an NSFW continuation of all of the stories under "Umamusume: American Trainer's Journey." This series acts to separate the SFW with the NSFW content that may be present between the American Trainer, Mark Langsby, with his trainees.
This series is the NSFW continuation of American Trainer's Journey - Agnes Tachyon
https://archiveofourown.org/works/70917496/chapters/184402486**Needless to say, all characters depicted as Mark Langsby's trainees are depicted to be 18+**
Mark Langsby never intended to become an umamusume trainer - let alone becoming a romantic and sexual partner with his aspiring trainees!
This series outlines the erotic tales between Mark Langsby and his trainee, Agnes Tachyon. Check the notes on how the continuity between this series and the SFW story will be described (if available).Series