Ryo-Ohki is an OVA anime series created by Masaki Kajishima.
Directed by Hiroki Hayashi and produced by Anime International Company, the OVA was originally released in Japan on 25 September 1992.
Pioneer Entertainment (later Geneon) had licensed the first two OVA series and released them on LaserDisc, VHS and DVD.
After Geneon's departure from the North American market in November 2007, Funimation rescued the first two OVA series, along with a handful of other Tenchi Muyo!
[1] Funimation released a limited edition Blu-ray/DVD combo pack on December 4, 2012.