Watch Uma Musume: Pretty Derby - Shinjidai no Tobira Episode 1 online with English Subtitles. Enjoy high-quality streaming for free. Stay updated with the latest episodes of Uma Musume: Pretty Derby - Shinjidai no Tobira as we bring you fresh content every week. Don't miss out on the action, drama, and adventure of Uma Musume: Pretty Derby - Shinjidai no Tobira! Bookmark this page to stay tuned for upcoming episodes.