Jagi is one of the antagonists in Hokuto no Ken. he was the third of four Hokuto brothers adopted by Ryuken.
Deceptive and evil, Jagi stops at nothing to win and frequently uses dirty tricks during battle. He never really mastered Hokuto Shinken, relying on his sawn-off shotgun to finish off most of his opponents. After a botched attempt at killing Kenshirou, he is left with a hideously disfigured head as a reminder of his failure. Consequently, he hides his head by wearing an iron helmet. He bears a fake version of Kenshirou's famous seven scars on his chest, which he uses to terrorize people in his name.