Kiba Daiō (牙大王, "Great Fang King", also known as "Boss Fang" or the "King of Kiba") The leader of the Fang Clan. Master of Kazan Kakuteigi (華山角抵戯, "Huashan Horn Wrestling") style.

His Kazan Kogai Koho allows him to turn his body to hard steel. He is known as "Father" (oyaji) to his underlings. He places so much value into his own "children" that when a group of them are killed, he retaliates by killing a group of peasants as vengeance. He tries to make Kenshiro and Rei fight each other, by kidnapping Airi and then taking Mamiya as hostages. However, Kenshiro and Rei fool him into releasing the women by faking their own deaths. Ultimately, Kenshiro confronts him and kills him by striking a vital point that turns Kiba Daioh's steel body into rust, before finishing him with Ganzan Ryōzan Ha.

In the theatrical movie, Kiba Daioh makes an extended cameo as a rival warlord who defends his territory against Raoh. He massacres part of Raoh's army, until he is killed by Raoh's Gōshō Ha technique.