บท 574: 312 'Mastering the Underground World Starts with Subduing the Black Spade 'A' Organization' (6300) _2

"Having initially mastered the core secrets of martial arts, and honed the physical body to a certain degree with secret techniques, the blood circulation in the body can be sensed and controlled by the spirit, accelerating the flow of blood. There are three nodes in the human body, each breakthrough of a node can accelerate the blood flow once. By completely unlocking them, it's possible to burst forth instantly, accelerating blood flow by four times." Casio accepted a cup of tea from the other side.

"In addition to this, there is the fourth stage fighter. This level starts to transcend physical limitations, developing in a more mysterious direction. The destructive power is comparable to a salvo of rocket grenades, with the weaker ones blowing up a large building, and the stronger ones destroying an entire city block."

"There is also the fifth stage of secret martial arts!"