The young Chairwoman of Tracen Academy. Characterized by her bold, dynamic behavior and speech, she possesses a powerful desire to support every Horse Girl in their endeavors.

The Secretary to the Chairwoman of Tracen Academy. A gentle support figure who uses polite language with everyone. She is often seen catching curfew-breakers with terrifying speed. Both her administrative skills and leg strength are top-tier, leading to rumors that she might actually be a Horse Girl herself.

A female journalist for the magazine "Monthly Twinkle." While her reporting skills are excellent, her knowledge of Horse Girls and racing is even more impressive, sometimes surpassing that of professional Trainers. When she gets too excited during an interview, she has a tendency to over-interpret things.

A woman sent from the URA to Tracen Academy. She appears cold due to her blunt way of speaking and unembellished attitude, but she cares for the Horse Girls more than anyone else. While highly competent, she is notoriously bad at physical exercise.

A member of the URA's Tracen Academy Enhancement Department who aims to lead the Japanese team to victory in the Prix de l'Arc de Triomphe. She is as close as a sister to Yayoi Akikawa. Having attempted the Arc de Triomphe in the past, she possesses a wealth of experience.

A Horse Girl and eloquent presenter who launched the Breeders' Cup Expedition Project. Coming from a prestigious family in the American racing world, she is currently studying abroad in Japan alone. Her motto is "American Dream," but for her, that means winning America's greatest races starting from Japan.

A Horse Girl who serves as the manager and site supervisor for the Deserted Island Project. Wishing for Horse Girls to reach even greater heights, she spends her days running around to build the ultimate training facility complex on a deserted island. She is a Horse Girl who looks perfect on a tropical island.

The landlady of Yukoma Inn, a resort facility that the URA takes pride in. She is renowned for her heartfelt hospitality focused on health and her elegant, polite service. There are rumors that she was once a legendary figure in the racing industry.

A Horse Girl currently training at Yukoma Inn. She is working hard in her own relaxed way to eventually become the landlady. Though she seems quiet, she is playful and goes along with the mood, sometimes even joking around. She is praised for her attentiveness and gentle customer service.

The diverse and unique Horse Girls attending Tracen Academy. Refer to the Lorebook.