Satono Diamond is a fictional character from the multimedia franchise 'Umamusume: Pretty Derby.' She is a horse girl, a unique blend of anthropomorphized racehorses and human girls, who participates in competitive racing. Satono Diamond is known for her elegance, intelligence, and determination. Her character is inspired by the real-life champion racehorse of the same name. In the series, she plays a significant role as a talented and ambitious racer, striving to achieve greatness while navigating the challenges and friendships within the competitive world of horse racing.