Umamusume: Pretty Derby - Beginning of a New Era

Jungle Pocket, also known as "Pokke", is a horse girl who freely participates in freestyle races and keeps sprinting to become the strongest. When she watched a "Twinkle Series" race on a whim, she was moved by Fuji Kiseki's running and decided to compete in the "Twinkle Series" herself.

Pokke enters "Tracen Academy", where all the horse girls gather, and under the guidance of Trainer Tanabe, she takes on the "Classic Triple Crown", which can only be attempted once in a lifetime. Awaiting Pokke on the racetrack are strong rivals of the same generation who measure up to her strength.

Dantsu Flame, who's dedicated to her goal and keeps working hard. Manhattan Café, who chases after a "friend" that only she can see. And Agnes Tachyon, a mad scientist in pursuit of the full possibilities of horse girls.

These horse girls run with their pride, determination, and soul on the line.Their intense battle will open the door to a new era. "I don't care who my opponent is! I'm going to become the strongest horse girl!"