Benson is the king of the underground arena and leader of the Chain Clan. In the underground arena, his mighty punches were known to send chills down his opponents' spines.
Under Benson's leadership, the Nagao Gang grew in reputation, and the Chain Alliance, which was formed to resist the Kaztas, was on the verge of collapse. Benson purchased powerful fighters from around the world and made a huge fortune. As a result, he refused to be restrained by the Chain Alliance any longer.
With an increasing hunger for success, he turned his attention to taking out the Chain Alliances' remaining gangs.