An anime spin-off of the Uma musume project by Cygames, known as Umamusume: Cinderella Gray, is now available to simulcast stream on Amazon Prime in the UK with the first episode currently available in Japanese with English subtitles. This same episode is also available to stream on YouTube.
It is believed the first episode of Umamusume: Cinderella Gray became available to stream on 6th April 2025, although according to Amazon Prime it was originally released on 29th March 2025, and it is expected that a new episode will become available to stream each week until the series draws to an end. The series itself is animated by CygamesPictures and is adapted from the manga.
Synopsis: Unbeknownst to those around her, the staggering potential of this ashen-haired “Beast” will soon catapult her to the national stage—and down the path of a legend. Follow her journey as the gates open on this hot-blooded Cinderella story!”
Umamusume: Cinderella Gray is available to stream on Amazon Prime in the UK, and It’s also worth noting that Amazon Prime do have a limited selection of anime titles to stream, including TASOKARE HOTEL as well as older shows such as My Hero Academia and JUJUTSU KAISEN.