To protect the earth from the "eques" and save the human race from an alien menace, the young Akira has to fight to the death. Even if that requires sacrifices... (Source: Japanzai)

Spin-off series, written and illustrated by Miyatani Kengo, representing and describing Doppo's adventures.

A collection of three one-shots about martial artists. 1. The Birth of a Brand New Technique - An extraordinary martial artist helps a young woman in the mountains. 2. The 1% of a Man - An ordinary guy fights a giant protect his precious gravure idol magazine. 3.The Fortress of Absolute Despair - An outlaw defies heaven by using force to take the emperors throne.