A/N: This may not be the Umamusume story you were hoping for, as this will contain a much darker and thrilling theme throughout the story. If you aren't suited for such darker themes, I suggest skipping this, as I wanna take a more dramatic and intense twist on the world of Umamusume. If you aren't too unnerved by such things, then continue by all means. The world can seem all sunshine and rainbows, but even as people enjoy watching their favorite horse girls race, there are some people that want to ruin it for everyone for their own personal gain and amusement. Horse Girl Racing, one of the most popular and one of the most financially gaining mediums in the sports world. While all the normal people in the world watch in enjoyment and cheer their favorite horse girls on, there are those who have darker and stranger intentions for this type of entertainment. What happens when a gang crosses into this wholesome world of racing with innocent horse girls trying to make their dreams come true?

"If I stop chasing victory, I don't simply lose the race-I lose the marrow of my being. To relinquish the pursuit is to admit that every wound, every sleepless night, every drop of sweat was meaningless. And I would sooner bleed myself dry in the arena than live as a monument to wasted effort."

In a world where only female horse girls known as Umamusume exist, a sudden anomaly appears. a male horse also known as Umamusuko. Born with the blood of champions and the heart of a runner, Y/n L/n, the first and only Umamusuko, enter Tracen Academy, a school built to train future legends of the track. With dreams burning brighter than the morning sun, you'll run not just for victory, but for your place in a world that never expected you.

(Y/N) (L/N) was just watching a gambler from Las Vegas lose all his money betting on black in a roulette. As if on cue, an ad for a Game called Umamusume:Pretty Derby, appeared... and started his literal dive into the rabbit hole of cute horse girls running... just in time of getting damn good luck (5 3 stars in one ten pull) He got hit by a truck... I guess you all know where this is going! (I don't own the game nor any art used in this fanfic, they are owned by their respective owners)

Being a fan of a trendy gacha game about racing horse girls based on real life race horses is not the weirdest thing in your life. But having to deal with the characters of that said game that somehow ended up in the real world? That's a whole new level of weirdness. Follow the story of a teenage boy taking care of these Umamusumes as they navigate the real world and hopefully, try to find a way back to their home world while discovering their real life counterparts. (P.S: Umamusume: Pretty Derby does not belong yo me as it belongs to their rightful owners.)

A rare male Uma, born in poverty, grew up watching the races of Umamusume's, he wanted to join them in their races so he trained and trained in the hopes of reaching the level of those he watched and join them in the races he has seen. He wanted to become someone like them.

In a world where only legendary horse girls are born to run, one impossible truth shatters eternity: a male has been born-an Uma Musuko. He is the anomaly that should never exist. He is the storm that will outrun destiny itself. Tomorrow, Tracen Academy opens its gates to the only boy who dares stand at the starting line beside gods. Tradition will scream. Records will burn. Fate will break beneath his hooves. The age of Uma Musume is over. The age of the Uma Musuko begins now.

Umamusume, the fictional game world in which famous race horses are anime girls with ears and a tail. But what if that wasn't the case? What if I said they were real and you could see these in action or even compete against them? You'd call me crazy right? Well... it's not so farfetched in my case. For you will come to see that in my story. The story of one who is nothing more than a piece in a game of fate played by the three goddesses.