Also known as マムシの蛮蔵 mamushi no banzou, aka Banzou the Viper. The originator of the Justaway explosive.

He used to work in a government officeverification/corroboration needed but got laid off due to company restructuring, and he became a terrorist in his bitterness. He started a factory, taking in displaced and bitter samurai who also wanted revenge. The factory acts as a front for the manufacture of Justaway, which is actually a bomb. Yamazaki Sagaru was sent here as a spy to uncover more about the mysterious Justaway in Episode 32. It turned out that the factory also manufactured heavy artillery like the Mamushi-Z laser canon.