Launch of the Umamusume: Pretty Derby mobile game on iOS and Android in Japan, allowing players to train and race horse girls.
The first season of the Umamusume: Pretty Derby anime began airing on Japanese television, expanding the franchise's popularity.
The second season of the Umamusume anime aired, continuing the story and character development of the horse girls.
Major update to the mobile game including new features, additional characters, and gameplay improvements.