The series begins in 12th century Japan and centers on Kuro, a character based loosely on the legendary Japanese swordsman Minamoto no Yoshitsune.

Following an attack by his pursuers, Kuro is badly injured and must imbibe Kuromitsu's blood to save his own life.

The surviving citizens have fallen under constant oppression by the Red Army, and Kuro is quickly found and recruited by an underground revolutionary movement called Haniwa.

The starting plot for the series is probably inspired by Kurozuka, a 1939 Japanese dance-drama, which features a man-eating ogress named Kuromitsu,[3] as well as the life of Minamoto no Yoshitsune.

The English dub was produced by Ocean Productions, in Vancouver, British Columbia, Canada, using their own studio actors.