That day, Wada Ryuji, Ikezoe Kenichi, who had traveled to the world of Umamusume for some time, and the younger Mr. Imami Ryuri gathered again to discuss their discoveries over the past few days. Wada Ryuji: I'm not sure if you will believe this, but I found Hao Opera in Tresen Academy. But she has changed so much that I don't recognize her. In my impression, even if she became a horse girl, she wouldn't have such a personality. Ikezoe Kenichi: Don't mention it, just be happy. I also met the Golden Master and the East Business Reform. The president even asked me to be their trainer. I'm going to suffer again. I only wanted to be [Xu Shi Ziqian]

As a Uma Musume player, he never imagined he would one day become a Uma Musume himself. His first day as a Uma Musume: "Uma Musume bodies are beautiful and smell wonderful, I'm so cute!" Three years later: "Paper dolls don't matter, I just want to win!" A mutation in the game granted the player a Uma Musume body, even allowing him to travel to the Uma Musume world and be reborn as a Uma Musume in another timeline! Thus, in future races, people might witness the following scenes: [Mejiro McQueen meets Mejiro McQueen, and is dominated by the terrifying Great Escape!] [The indomitable hero, the Emperor of the East Sea, meets the ultimate emperor who surpasses even the emperor with his undefeated triple crown!] [The golden ship from Mars meets the demon ship that can turn races into a severe delinquency arena!] And all of this begins on this morning, when the player becomes the Uma Musume Mejiro McQueen!

Transmigrating to the world of horse girls, becoming a trainer, and obtaining a system. Each of these is a joyful experience, but when combined, it's triple the joy. I've even envisioned being intimate with a horse girl, having a baby girl, and a daughter becoming a Triple Crown horse girl, a future Hall of Fame horse. But why has reality turned out this way? Standing at the entrance to the arena, I look down, still able to see my toes, but not my entire paw. The horse girls all around me gather around me. Emperor of the East Sea: "Reiko, I will prove that Team Spica is the best!" Silent Suzuka: "Reiko, I won't lose, because I'm Silent Suzuka!" Mejiro McQueen: "Reiko, I will protect everything in the Mejiro family." Special Week: "Reiko, it's my duty to restore the glory of the foodie world." Excellent Quality: "Reiko, even if you target me, as long as I don't come in third, I'll be a success!" Wait, is there something strange going on here? Special Week, I'm not a big eater, why are you meddling? No, why should I, as a trainer, transform into a horse girl and stand on the track?

【Multiple Heroines】Just because I answered the question of a gentle older sister in my dream,

When the young man on the hospital bed opened his eyes again,

The girl who was being introduced to the other side with her beautiful tail wagging while being held by her mother's hand,

"From now on, he will be your trainer and she will be your horse girl."

Eh? Eh——!!!!!!!!!!!!!!!!!!

I'll be writing some original overseas plots, so please bear with me. Since this is fan fiction, of course there will be some changes to the plot! Please bear with me on that as well. As a new author, I'll do my best to write something that everyone will enjoy and be satisfied with.