Joji Narushima also known as The Poisonous Snake, is a 6th Dan Rokushin Kaikan karateka, and formerly one of the Rokushin Three. He was the champion of one of the Rokushin Kaikan's recent open tournaments and also participated in the most recent Rokushin Kaikan open tournament, placing highly. Several years after the Rokushin Kaikan tournament, Joji has retired from competing in karate matches and has become a Rokushin Kaikan instructor.