The shock wave gathered in Wang Yan's hand, although very weak, had truly captured the essence of the shock wave.
Seeing this, Muto Shiro immediately widened his eyes, completely stunned.
Back in Japan, because countless Black Dragon Orders were found, the Black Dragon Association was established.
And discovered along with these Black Dragon Orders were also three secret techniques, now known as the Three Great Secret Techniques of the Black Dragon.
These three Black Dragon secret techniques have now become the treasured secrets of the Black Dragon Association, never to be passed on to outsiders.
And this shock wave is the third secret technique of the Black Dragon Association.
Back then, in order to understand the shock wave, countless Black Dragon experts painstakingly researched for years before they figured it out.
It took them several more years to master these three secret techniques proficiently.
