 He hates the main Hokuto bloodline, from which Ken and Hyoh are descended from, due to the fact that he was forced to play a subordinate role to Hyoh by Jukei, despite being a more gifted warrior.His hatred was furthered after the death of his mother, who died saving Kenshiro and Hyoh.Kaioh is the last major villain in the manga (there are others after him) and the final opponent Kenshiro faces in the TV series.