Jugai was a practitioner of Nanto Koshuu Ken, who was trained alongside Shin by the former master, Fugen. He was said to be of equal fighting ability to Shin. He succumbed to madness after his wife and child were killed by bandits and formed an army to conquer the wasteland. When he invaded the slave town, Gesso City, he fought against Kenshirou but was soon defeated. In his final moments, Jugai rewarded Kenshirou with the remote detonator which Siska used to control the city, and vowed to watch Kenshirou's destiny from the depths of hell.
