Four thousand years ago in China, a form of kenpō martial arts called Jūken (獣拳, "Beast-Fist") was developed. It was created by a man named Brusa Ee, who came to Japan and built the hidden village Jūgenkyō (獣源郷, Beast Origin Village). Jūken is a martial art in which one mimics the abilities of animals as well as trying to attain spiritual peace. However, dissent grew among the creator's ten students. Three of them believed that they should use the suffering and hatred harnessed within humans to increase their power, using their power to assume their monstrous forms; the Three Kenma...