Ardan Mejiro is a fictional character from the anime series Uma Musume: Pretty Derby. She is one of the horse girls, a unique group of girls who possess the speed and stamina of racehorses. Ardan is known for her elegant and poised demeanor, which matches her noble lineage. She is a student at Tracen Academy, where she trains to compete in horse racing. Her role in the series is to showcase the importance of grace and determination, as she strives to uphold her family's prestigious reputation while forming strong bonds with her teammates.