The style is partly based on Hideyuki Ashihara's studies of Kyokushin Karate, but also includes many original techniques that he himself developed and taught. Often referred to as "fighting karate" by its practitioners, it is known for its emphasis on practical techniques and "hard contact" approach to training. The core curriculum of techniques is known as the Sabaki Method - to move to the side and attack from a safe angle. The traditional competition format is with Knockdown karate rules.