Masayuki Shimabukuro is a founding member of the North American Japanese Karate-do Masters Association and serves on its board of directors. He is the international chairman of the Nippoin Kobudo Jikishin-Kai, an inductee of the Black Belt Hall of Fame as Weapons Instructor of the Year, and a member of the prestigious Dai Nippon Butoku Kai, the oldest martial arts governing body in Japan. He lives in San Diego. Carl E. Long is a swordsmanship expert and the senior student of Masayuki Shimabukuro. He is the vice chairman and director for the Jikishin Kai International organization. He lives in Kingston, Pennsylvania.