"Qi strength body protection" is mysterious, in fact, the principle is very simple, it is not what Gu Yi knows about "internal force, true qi", nor is it an "energy cover, protective shield", just the human body muscle cells are full of "energy" that is difficult to describe its detailed nature, and it becomes like a basketball filled with qi, which makes the muscles and bones more elastic and tough, and the natural resistance to external forces is greatly enhanced.

Is it more painful to be punched in the loose stomach after the whole body is relaxed? Or is it more painful to tense the muscles of the whole body after taking a deep breath?

And with the experience he summed up from the revenge, even the "MT-type" person with the [armadillo armor] of the enemy can't bear his "qi fist", let alone the slender "sensitive thief-type" person.

As he expected, don't look at the bract jaw like a hedgehog with teeth and claws, but once his weakness is found, the damage of the "Qi Jin Fist" to him is definitely much greater than that of the revenge, and the bract jaw almost loses its ability to fight under one blow.

"Hey, hey!" Gu Yi moved his fingers, clenched his fists, and made a crisp sound of "Quack, Quack!", and slowly took a step in the direction of the bract.

The bract jaw was still bleeding from his mouth at this time, and instinctively took a step back and put on a defensive posture, but the next moment he may feel a little embarrassed to show cowardice in front of a guy who is two orders lower than himself, and gritted his teeth and took a step forward, but the defensive posture remained unchanged.

Gu Yi's "Qi Jin Fist" just now really scared him, maybe Gu Yi himself didn't know how weird his "Qi Jin Fist" was and how powerful it was, but he didn't know how to do it, how could he not be clear about beating old men like Bud Jaw and Qi Qiu?

If they weren't frightened by Gu Yi's "nirvana", how could they be so close to Gu Yi as a great enemy of a lower grade than themselves?

Thinking about it, I also know that with the fighting experience of the two of Buddy Jaw and Qi Qiu, how could they be so easily seriously injured by a novice like Gu Yi in the fight?

It was because the two of them didn't expect at all that the destructiveness of a mere [Karma Third Order] Karma Force's fist power would be enough to break their "protective qi" with one punch and directly damage their internal organs, even if it was a Karma person of the same rank as them, or a higher grade, it would not be able to achieve such an effect!

Under normal conditions, when the two sides have mastered the skills of "turning strength into strength" and "qi strength to protect the body", even if they completely give up the action of dodging and fighting each other wildly, it is unlikely that they will cause serious injuries to the opponent with just one punch.

It must be after each other consumes the energy in each other's bodies, that they have the opportunity to seize the opponent's loopholes and attack their vital points to make the opponent lose their combat effectiveness.

For example, the revenge of having [armadillo armor] is to suffer the loss of being too confident in his own defense, and he did not expect Gu Yi's fist power to break through his [armadillo armor] defense, which is completely beyond his common sense.

This is like in the concept of the vast majority of ordinary people, it is impossible to open bricks with bare hands, but if one day there is a soft girl in front of everyone, with her delicate and tender little hands to "pop" the bricks and cut tofu, it is estimated that a group of dicks can be scared to pee.

From the performance of the revenge and the bud jaw, Gu Yi also more or less noticed that his "Qi Jin Fist", perhaps more destructive than the fist power of ordinary people of the same grade, combined with the situation of the "Qi Jin Fist" when it was formed in his body, Gu Yi finally realized that maybe he inadvertently created another "fist method".

Most people who forge their bodies have to go through a long period of cultivation, and only under the stimulation of life and death in the tragic actual combat can they comprehend the skill of "turning strength into strength".

In a very short period of time, Gu Yi realized the "turning strength into strength", and he was already frightened by the pin of teaching him the "White Wolf Interior Technique" forging method and the "Breaking Formation" fist and foot technique, and thought that he had encountered a "martial arts wizard" that was rare in a thousand years.

Then, Gu Yi, who practiced "White Wolf Interior Technique", inexplicably practiced "White Wolf Interior Technique" into "Thunder Sound Cutting Method", and as Gu Yi gradually became proficient in "Thunder Sound Cutting Method" and "Breaking Formation" fist and foot techniques, he applied the technique of "turning strength into strength" to the fight, but there was a mutation that made Pin Fu incomprehensible.

Although there is a common saying in the [Method of Forging the Body] that "one strength is a thousand forces", "turning force into strength" was used by Gu Yi, but the destructive power it has is completely beyond the comprehension ability of Pin.

That is no longer the destructive power that a [third-order] person can fight with "turning force into strength", this kind of strange situation directly gave Pin Fu a headache, and he really couldn't continue to teach Gu Yi this freak.

Even the "master" of Pinfu can't understand it, and Gu Yi certainly doesn't understand the reasons for these mutations.

As far as he feels about it, as Pin Fu said, such as "turning strength into strength" and "qi strength to protect the body", etc., require long-term cultivation and actual combat training to be able to comprehend and master the advanced skills, there is no bottleneck here at all, and it is naturally mastered by him, and he does not even perceive the difficulty.

And as he continued to participate in Dou Zhen and accumulated enough actual combat experience, Gu Yi finally discovered that all this may be related to the "Lei Yin Cutting Marrow" he mastered.

For example, when a normal person uses "force into strength", it is just that the "qi" in the body is condensed and compressed into "qi" and then hit explosively, and the condensed qi can only be maintained in the body for a very short time.

But when he came to Gu Yi's place, although the process of "turning strength into strength" was completely consistent, when he condensed the qi in his body, he would be shocked by the constantly agitating "thunder" in his body, and wave after wave of shocks seemed to "accelerate" the "qi" in his body!

This makes the qi in Gu Yi's body not only run faster, more explosive, and more terrifying, but after hitting the target, the qi that pours into the enemy's body will also produce a "wave-like" superposition effect, and carry out a second concussion damage to the enemy!

The back wave pushes the front wave, and the front wave dies on the beach.

Therefore, Gu Yi hit a "Qi Strength Fist", the first wave of damage was enough to shock the enemy's "Qi Strength Protector", and the second wave of damage was the killer who really destroyed the enemy's internal organs!

The concussive effect formed by the qi that was punched into the enemy's body under the concussive effect of "Thunder Sound Cutting Marrow" was enough to carry out many destructive refractions in the human cavity, and then release it explosively.

Based on the unique characteristics of the "Concussion Fist" caused by "Thunder Sound Cutting Marrow", Gu Yi decided to give his new trick a name:

[Sonic Thunder Punch]!