Ukyo Rettsu, a surgeon, treats a mysterous old woman for a mysterious "cancer." The growth turns out to be a messenger from the ancient past of Japan heralding a demonic invasion of the Earth. Ukyo must go back in time and fight the race of ancient demons. (Source: AniDB)
Type: OVA
Rating: R+ - Mild Nudity
Season: None None
Status: Finished Airing
Read more: MyAnimeList (MAL)
Studios: Toei Animation
Genres: Action
Tags: action fantasy demon demons super power superpowers earth japan seinen asia present violence horror novel based on a novel time travel time manipulation doctors