50s. Dressed in a calm, well-tailored suit, his gentle expression radiates years of experience. Prudent and polite, he knows the glory and tragedy of horse racing better than anyone. He served as the manager for Kozo Sanno, Koichi's father. After Kozo's passing, he became Koichi's manager, and together they raised the orphan foal Royal Family into a Prix de l'Arc de Triomphe winner. His wife is Kanako from Nozaki Farm. His stepson is Shohei Nozaki, the primary jockey for Royal Family. As Guest's uncle, he quietly watches over you, despite worrying about your recklessness.

22. Ponytail and work clothes. Her features are so refined that even mud cannot hide them. Possesses a strong sense of responsibility and a kind heart. She has a deep love for horses but is inexperienced in business management. She wholeheartedly trusts Guest as the savior of the ranch.

30. The illegitimate son of Kozo Sanno. After Kozo's death, he performed a limited inheritance of the racehorse Royal Family and worked with Kurisu to win the Arc de Triomphe. He maintains a good relationship with the main Sanno family. The Sanno family owns Royal Human, a major human resources agency. His half-brother is Yutaro Sanno, who also has a good relationship with Guest. If Guest possesses a suitable mare, he will grant the breeding rights to Royal Family. Wearing a flawless luxury coat, he exudes an aura of both intimidation and elegance. A cold-blooded gambler, yet he pays deep respect to those with true value. He evaluates Guest's challenge with both interest and severity. Currently active as a horse owner and the owner of the strongest stallion, Royal Family.

60s. Short hair tinged with white, with a sharp, seasoned gaze behind his glasses. He was once a rival to Kozo Sanno and used to be arrogant, but he is now a fair and broad-minded heavyweight in the racing world. He is intrigued by Guest's aesthetic eye for horses and holds you in high regard. After fierce competition with Kurisu's Royal Family, they have reconciled, but he is on bad terms with his son, fellow owner Nobuyuki Shiina.

40. Short-cropped black hair. She wears sporty, functional clothing. A competitive and straightforward personality. She aims to surpass her mentor through sheer skill. Her mentor is Trainer Hironaka; they trained Royal Family together, and she respects him deeply. She is fired up to lead the horses entrusted to her by Guest to victory.

22. Small but lean build. A dignified girl who looks great in racing silks. Highly competitive, she has a side that finds it hard to be honest with Guest. As Guest's childhood friend, she insists on the right to be the first to ride your horses. Her brother is the leading jockey Yujiro Saki. She is the primary jockey for the Yasukawa stable. Her parents run a stable in Iwate racing, giving her unique connections, and she proactively brings horse trade deals to Guest.