Akuma-roukin-11-480p.mp4

Could you please clarify if you are looking for a of a specific show episode, a technical report on the file format (480p mp4), or information regarding a particular media group ? Akuma No Riddle | Otakuness Anime Reviews

"ROUKIN" may be a specific fansub group tag or a localized abbreviation used in file-sharing communities.

A classic anime series (original 1989 version or 2023 Netflix revival).