Dark Cat
Japanese title: ダークキャット
Type: OVA
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Nov 28, 1991
Duration: 50 min
Rating: R - 17+ (violence & profanity)
Studios: Agent 21
Producers: Nikkatsu
Licensors: Media Blasters
Genres: Action, Horror, Supernatural
Themes: Mythology, Super Power

Hyoi and Ryoi, two brothers with the power to take the form of cats, must unravel the mystery of a creeping, tentacled, demon plague before it consumes them and their classmates. Ultimately, they must confront their old Dark Cat master Jukokubo, though whether they can put an end to the evil he has released remains a mystery.

(Source: ANN)