Kuroha is reborn in the world of Uma Musume, where the greatest racetracks double as school stadiums and legends are made under stadium lights. He's late to the party: superstar Oguri Cap has already moved up to the prestigious Tracen Central Academy, and future icon Tokai Teio hasn't arrived yet. Kuroha is stuck coaching in the sticks-until he recruits raw talent Fujimasa March and starts steamrolling the local circuit. With smart training, brutal discipline, and a chip on his shoulder, Kuroha sets his sights on the only stage that matters: The Top!

After transmigrating into the Uma Musume world, instead of becoming a trainer, I somehow unlocked the [Horse Girl Treatment System] and ended up as a doctor?! To level up my medical skills and become a legendary healer, Lin Anran activated a system quest-only to find out he had to turn into a horse girl and win races?! And the characters he could transform into were... [Platinum · Centaurea] and [Margaret · Nearl]?! Wait-since when do Pegasus count as horse girls?! But the first leg of the Triple Crown, the Satsuki Sho, was already over-no chance at a perfect Classic Triple Crown now. All or nothing! After transforming into Platinum, he set his sights on the unprecedented [Irregular Triple Crown]! Then, switching to Near Light, he stormed the dirt tracks of the American Triple Crown, charging straight into the Dream Cup to face legends like Secretariat and Man o' War! Between all the winning, his medical career somehow took off too. "Hey... can you promise to treat only me, forever?" "I never enjoyed racing before... but for Dr. Lin..." Lin Anran: "Gahhh, stay away from me!!!"