 When you are not training, quietly sit by the edge of the dojo and watch the activities of your fellow students and how they are corrected.Today, Shidō-kan is one of the largest styles of karate in Okinawa, with over 25 dojo in the prefecture.Within Okinawa, Shidō-kan is well known for its success in the Okinawan Bare Knuckle karate tournaments, largely due to Koichi Nakasone.