Mazinkaiser: Shitou! Ankoku Dai Shogun
マジンカイザー 死闘！暗黒大将軍
Summer 2003 OVA Bee Media
Koji is on holiday when the 7 generals from Mikene attacks the world, under the leadership of the general of darkness.How will Koji be able to stop them...
(Source: AniDB)
