Braiking Boss is the leader of the renegade robot army threatening to conquer the world. He faces the combined forces of Casshern, Luna, and Friender in combat.

Braiking Boss is the leader of the NEOROIDS that have taken over Earth. Casshern wages a solitary war on the NEOROIDS. Ironically Cassherns father created both Casshern and the NEOROIDS.

An enigmatic and scary man from Casshern's past, Braiking Boss once was the leader of robot army and commander of Casshern.