Ginga Teikoku no Metsubou Gaiden: Aoki Ookami-tachi no Densetsu
English title: The Legend of the Blue Wolves
Japanese title: 銀河帝国の滅亡・外伝　蒼き狼たちの伝説
Alternative titles: Legend of the Blue Wolf, Legend of the Four Horsemen, Hot Space Cowboys
Type: OVA
Source: Original
Episodes: 1
Status: Finished Airing
Aired: Dec 18, 1996
Duration: 45 min
Rating: Rx - Hentai
Studios: Phoenix Entertainment
Licensors: Media Blasters, Critical Mass Video
Genres: Action, Boys Love, Sci-Fi, Hentai
Themes: Mecha

The overcrowding of Earth forced humanity to migrate to other planets and adapt accordingly. Spread across the solar system, the race continued to prosper—until Pluto was suddenly attacked by an unknown enemy. The complete annihilation of its population made clear the mysterious assailants' aim to destroy mankind. The invaders use their human victims' knowledge and energy to pilot giant mechanical bodies, and humanity has dubbed them Apocalypse out of fear.

In the year 2199, Second Lieutenant Jonathan Tyberius clears his screening tests and becomes qualified to undergo the most elite military training course—allowing him to develop the ability to pilot humanity’s own manned robots. Working through the tough military training, he gradually grows closer to his new roommate, Leonard Schteinberg.

Beneath the facade of a disciplined army base, corruption runs deep. With a tyrannical predator calling the shots, and long-forgotten memories returning to haunt them, Jonathan and Leonard begin to suspect that their greatest enemy might not actually be the Apocalypse.

[Written by MAL Rewrite]

The OVA was made with the cooperation of the gay men's magazine Barazoku. A second episode was planned to be released, but production was cancelled to focus on the last episode of Giant Robo.