The OVA features a self-contained story focusing on the legendary "BNW" trio of horse girls: The BNW Trio : The story centers on Biwa Hayahide Narita Taishin Winning Ticket

For Uma Musume Pretty Derby, the "BNW no Chikai Repack" is a fan-edited version of the MV that surfaced on Japanese and Western torrent trackers around late 2022.

While originally a physical bonus, it has been streamed on platforms like Crunchyroll

The OVA shifts focus from the main series protagonist, Special Week, to the "BNW" trio—three legendary rival horse girls based on real-life 1993 Japanese Triple Crown winners: Biwa Hayahide: The composed and analytical leader. Narita Taishin: The aloof and prickly "loner" of the group.

The Official (But Incomplete) Route

• Mobile Game Library: If you own the Uma Musume mobile game (requires a Japanese App Store account), you can unlock the "BNW Memorial" story. However, the video is streamed on-the-fly and cannot be downloaded as a repack.
• YouTube Clips: Many reactors have uploaded 30-second clips of the MV under "Fair Use," but the full repack is consistently DMCA'd.