Advanced Gou mastery.

The aggressive styles of the Gou allow you to work out much of your anger. There is a rote, unyielding structure to the otherwise wild style. It utilizes rage to uplift the spirit, elevating users to be dominant forces in battle, and act as rallying beacons for their fellow practitioners. If the Tuzi Martial Arts are bent towards producing overwhelming force that cuts all down, then the Gou style is a war of attrition that is heavily disadvantageous for the foe. If two masters of the Gou Martial Arts meet, they can become a force to be reckoned with instantly. A grandmaster of the art can easily guide acolytes to victory by adding deeper wounds to the stronger enemies, protecting his pack from them, and acting as an indefatigable redoubt for his companions to assault freely. When needed, however, you can see that a Gou Martial Artist can fight with a semblance of their true potential while alone.

-You have achieved mastery over advanced Gou Techniques and are starting to be adept at their most secretive techniques.