"Pretty Derby" is a multimedia franchise created by Cygames that combines elements of racing and idol culture. It features anthropomorphized racehorses, known as Uma Musume, who are designed as young girls with horse-like traits. Players train these characters to compete in various races while also developing their singing and performance skills. The franchise includes a mobile game, anime series, and merchandise. In the game, players manage a team of Uma Musume, guiding them through training, races, and events to achieve success. The blend of competitive racing and idol activities appeals to fans of both genres.