Shokei Matsui , also known by his Korean name of Moon Jang-gyu, is a South Korean martial artist in Japan. He is the master of Kyokushin karate and current Kancho (Director) of the International Karate Organization Kyokushin-kaikan, faction of the International Karate Organization (IKO) founded by Mas Oyama (1923–1994).
- Country
- Japan
- Inception
- April 5, 1995
- Website
- http://www.kyokushinkaikan.org/