In a world very much like our own, great race horses of the past have a chance to be reborn as "horse girls"—girls with the ears and tails of horses as well as their speed and endurance. The best of these horse girls go to train at Tokyo's Tracen Academy, hopefully moving on to fame and fortune as both racers and idols. 
 
Special Week, a high school horse girl from the countryside, has just transferred to Tracen, and she's determined to fulfill her promise to her mother to become the best horse girl in Japan. On her way to school, she takes a pit stop at the race track and instantly falls in love with Silence Suzuka's style, becoming determined to race on the same team as her. 
 
(Source: Anime News Network)

The horse girls are back to charm you in this special, bite-size anime. Umayon comes alive as a cute and eye-catching anime! At a school-turned-training facility, the girls will race, perform, and train... but that's not all! Saddle up for a short-form anime that displays the laidback school days of the horse girls! Aaaaand, they're off! 
 
(Source: Crunchyroll)

Twelve additional short anime episodes included with the Umayon Blu-ray Box.

Enjoy the "tasty treats" that the Uma Musume like to eat in their daily lives and on special occasions.
 
(Source: Cycomi, translated)

Eishin Flash