Kaioh is a prominent antagonist in the anime series 'Hokuto no Ken' (Fist of the North Star). He is the older brother of Raoh and Toki, and a formidable martial artist with mastery over the Hokuto Ryuken style. Kaioh is driven by a lust for power and seeks to dominate the world by spreading fear and chaos. His character is marked by a deep-seated hatred for the Hokuto Shinken school, making him a formidable adversary to the series' protagonist, Kenshiro. Kaioh's strength and dark ambitions make him a central figure in the series' later arcs.