Raou (officially spelled as Raoh), also known as 拳王 (Ken-Oh or Ken Ou, "Fist King"), is the main antagonist from Hokuto no Ken.
He is the eldest of the four adopted children trained by Ryuken, the previous Hokuto Shinken master.
Raoh trained under Ryuuken along with Toki and Kenshirou, as well as another student named Jagi. In spite of his ambitions to become the greatest martial artist in the world, Raoh lost the rights to the Hokuto Shinken succession to Kenshirou. Refusing to give up the style, Raoh killed his sifu Ryuuken in combat.
After the Nuclear War, Raoh has formed his own army made of various ruthless thugs and gang members, taking the name of Ken-Oh, King of Fist. and managed to conquering the post-apocalyptic world with fear and terror. aimed to "seize the Heaven", he was later known as The Ruler of the century's end.
- 二指真空把 (Nishi Shinku Ha)
- An arrow shot towards the user is caught between two fingers and then deflected back towards the opponent.
- 北斗剛掌波 (Hokuto Goshou Ha)
- An aura blast Raoh tried to use against Kenshirou.
- 新血愁 (Shinketsushuu)
- A pressure point Raoh uses to cause his opponent's body to hemorrhage all of its blood for three days. This pressure point was the cause of Rei's death.
- 無想転生 (Musou Tensei)
- The ultimate secret technique of Hokuto Shinken. It makes the user untouchable to all incoming attacks.