"Uma Musume Pretty Derby: Road to the Top" is a four-episode anime series that serves as a prequel to the main "Uma Musume Pretty Derby" franchise, focusing on the competitive world of horse girls—anthropomorphic characters inspired by real-life racehorses. The story centers on Narita Top Road, a determined and ambitious horse girl who aspires to become a top-tier racer. Her journey begins when she transfers to the prestigious Spica training team, where she faces intense competition and personal challenges.

Narita Top Road’s primary rival is Symboli Rudolf, a dominant and highly skilled racer who has already established herself as a champion. Their rivalry drives much of the narrative, as Narita strives to surpass Symboli’s achievements and prove her own worth. Alongside Narita is her supportive teammate, T.M. Opera O, who provides encouragement and camaraderie as they train together. The series delves into the rigorous training regimens, strategic races, and emotional highs and lows experienced by the horse girls as they pursue their dreams.

The plot emphasizes themes of perseverance, rivalry, and self-improvement, with Narita Top Road’s growth as a racer serving as the central focus. The series also explores the dynamics of teamwork and the pressures of living up to expectations, both from others and oneself. Through its concise storytelling, "Road to the Top" provides a compelling look into the competitive spirit and dedication required to excel in the world of horse racing, while setting the stage for the broader narrative of the "Uma Musume Pretty Derby" universe.