Haou Taikei Ryuu Knight: Adeu Legend
Lord of Lords Adeu's Legend OVA
Lord of Lords Ryu Knight: Adeu's Legend
覇王大系リューナイト アデュー・レジェンド
In an old world clash between light and darkness (as always), the evil Lord Uongadis is sealed away under a gigantic monument called the Earth Blade. 20 years have passed since the wars, and now the threat of evil being brought back is greater than ever as demons try to revive their lord.
(Source: ANN)