Uma Musume: Cinderella Gray  

ウマ娘 シンデレラグレイ

Umamusume Cinderella Gray is a separate series from the main Uma Musume franchise by CyGames. It focuses on Oguri Cap as she attends Kasamatsu Training Center Academy and works towards becoming one of the greatest horse girls in history.

Uma Musume: Cinderella Gray was released on Blu-ray in four volumes from September 17, 2025, to December 17, 2025.