Yae Sakura, but She's an Uma Musume

Yaezakura and her younger sister, Yaesuzu, depend on each other. In their world, there is no collapse: Uma Musume run on the racetrack. Both sisters dream of running on the track, but Yaesuzu was born frail and cannot run. The shattered dream gives rise to a second personality. For her sister's sake, Yaezakura gives up running, takes odd jobs to earn money, and resolves to study medicine and save her. Then, one morning while delivering newspapers, she meets a chestnut-haired Uma Musume full of energy. "I'm Tokai Teio! Race me!" Yaezakura says flatly, "I've never thought racing was fun." Years later, she has become the strongest Uma Musume of the end of the century, with Tokai Teio, the one who dragged her back to the track, standing by her side. And in the stands, her sister can finally smile as she watches her run.