Dogs: Bullets & Carnage
Japanese title: ドッグズ／バレッツ＆カーネイジ
Type: OVA
Episodes: 4
Source: Manga
Genres: Action, Drama, Sci-Fi
Studios: David Production
Producers: Atelier Musa, Shueisha, Omnibus Promotion
Duration: 15 min per ep
Rating: R - 17+ (violence & profanity)

It is sometime in the future, where a certain European city extends far underground, even secret, dark levels that have the key to the past. Ex-assassin Mihai has returned and is living with Kiri, who now runs a restaurant. Sword-wielding Naoto, Haine (white hair), a mysterious product of genetic engineering and his sometime partner Badou (eyepatch).

(Source: ANN)