Satono Diamond is one of the key characters in the anime franchise Uma Musume: Pretty Derby.

​Origin and Status: Born into an incredibly wealthy and influential family, she was raised as a lady from childhood. She is distinguished by her refined manners, kindness, and politeness, while also possessing an unyielding will and determination.

​The Satono Family "Curse": The main driving force of her story arc. Horse girls from the Satono family could never win Grade 1 (G1) races, leading people to speak of a "curse." Diamond sets a goal for herself to break this losing streak and bring the first major victory to her clan.

​Friendship and Rivalry: She has been close friends with Kitasan Black since childhood. Despite the differences in their backgrounds and running styles, they promised each other to compete in major races together and inspire their fans.

​Career and Triumph: After joining Tracen Academy, Diamond steadily pursued her dream. Her main goal is achieved at the iconic Arima Kinen race, where she claims victory in a hard-fought battle, finally lifting the tragic curse from the Satono family and proving her status as a top runner.