Biwa Hayahide is a character from the anime series Uma Musume: Pretty Derby, which combines horse racing with anthropomorphized horse girls. Biwa Hayahide is known for her striking appearance, characterized by her long, silver hair and calm demeanor. She is a dedicated and disciplined horse girl who strives for excellence, often acting as a mentor to her peers. In the series, she competes in various races, showcasing her remarkable speed and strategic prowess. Her character development focuses on her journey to balance her competitive spirit with personal growth and camaraderie.