Uma Musume: Cinderella Gray
ウマ娘 シンデレラグレイ
Manga hii ni hadithi ya pembeni ya mradi wa Uma Musume wa Cygames, inayozingatia uzoefu wa Oguri Cap katika Kasamatsu Training Center Academy anapojitahidi kuwa msichana farasi wa hadithi. Hadithi pia inajumuisha hadithi ya pekee yenye kichwa Uma Musume: Cinderella Gray Gaiden - The mermaid left behind.
