Seeing that Li Changsheng couldn't hurt himself, Qi An put his mind at ease, but Li Changsheng was very depressed, he didn't spare his hand for the knife just now, he almost tried his best, but he didn't expect that even the other party's epidermis couldn't be broken, how could he fight?

However, Li Changsheng did not lose his fighting spirit, his train of thought turned quickly, thinking that the defense on your back is very strong, but it is impossible for the defense of the whole body to be very strong, but any opponent who is good at defense always has a weakness called the cover door, once it attacks the cover door, it can still hit the opponent hard.

Li Changsheng is not wrong in thinking, no matter how strong the defense is, there will always be weaknesses to be found, and the Vajra cultivated by Qi An is not bad, although it is claimed that "the whole body is as strong as King Kong, and nothing can be damaged", but in fact, not every part of the defense is exactly the same.

Qi An's strongest defense is a pair of arms, because when Qi An cultivated King Kong is not bad, he referred to another kind of body refining method called "Tuo Shen Arm", which focuses more on the cultivation of the arm, and the most heaven and earth vitality is integrated, which can be called the strongest part, followed by those places with rich muscles and bones, and the defense is also very strong, such as legs and feet, chest, back, abdomen, head, etc., but the defense of some parts is weaker, such as eyes, ears, nose, mouth, throat, The crotch is barely considered a weak point, and the defense of these weak parts is weaker than other parts, and it is easier to be broken when attacked, and the damage received after breaking the defense is also more serious.

But it is not easy to attack Qi An's weak parts, Li Changsheng can only try his best, it is difficult to say whether he can attack, even if he attacks Qi An's weak parts, whether he can cause damage remains to be verified.

Qi An was stabbed in the back, but he didn't break the defense, and while he was surprised in his heart, he continued to think hard about how to deal with Li Changsheng, and while trying his best to resist, he paid more attention to observing Li Changsheng to see if there were any flaws to be found.

Although the two fought non-stop, they were more inclined to observe each other and look for weaknesses, especially Li Changsheng, since he knew that most of the attacks were ineffective against Qi An, the offensive converged a lot, and the suppression of Qi An was relaxed a lot. By doing so, he just gave Qi An enough time to breathe, so that Qi An could better observe him.

Qi An has a characteristic, his comprehension ability and learning ability are very strong, and he often observes the opponent in battle, learns from the opponent, in order to find his own shortcomings, and at the same time improves, so he often becomes stronger and stronger, and even breaks through and improves in battle. It's the same this time, Li Changsheng's ghost knife style is very subtle, more subtle than any opponent Qi An has encountered before, even Mao Buping, who is stronger than Li Changsheng, is not as good as Li Changsheng in martial arts skills.

The clever and careful Qixin slowly discovered that the real power of the ghost knife style is not the knife, but the ghost-like shortcut body, the body and the knife are closely combined, no matter the attack, Defend or dodge, are to use the body to drive the knife method, and at the same time, in turn with the help of the knife method to drive the body method, the two are very effective together, complement each other, enhance each other, the body to the knife, the knife is the body, the body and the knife are truly and perfectly integrated into one, without distinguishing each other, this is probably the real reason why Li Changsheng was able to break through the heaven-level life and death alley with the realm of the peak martial arts.

Knowing this, Qi An was greatly touched, reflected on his own mistakes, and immediately realized that his backing boxing method had a big flaw, that is, it was not combined with body and footwork, and the upper and lower disjoints were out of touch and out of place.

Qi An's approach to the moon and chasing stars is also considered to be an introduction to cultivation, reaching the level of one step two, this body method is good at long-distance movement, the role in close combat is not very obvious, the lack of dexterity changes, it can only be used to increase the speed of movement, only when escaping or chasing, stepping on the moon and chasing stars can play the greatest role.

In fact, in the martial arts, the whole body is taken as a whole, whether it is the movements in the hands or the movement under the feet, they can be very effectively combined, and Qi An has not been aware of this, and the backing boxing method created only focuses on the strength of the upper body, and the lower body does not cooperate with each other, resulting in a disconnect between the two and hindering each other, unlike Li Changsheng's ghost knife style, the body is the knife, the knife is also the body, the knife is the body, the body moves with the knife, the two are fundamentally combined into a whole, without distinguishing each other.

This principle can also be applied to the boxing method, the boxing method is the body method, the body method is also the boxing method, the two cover each other, you have me, I have you, the backer boxing method wants to continue to improve, it is necessary to combine the body method and footwork, the upper and lower plates effectively cooperate, the boxing is with the body, the body moves the boxing, so that it can be regarded as the real backer boxing.

Thinking about this, Qi An is like pushing open a new door to martial arts, he did not punch on the upper plate as before, move on the lower plate, but effectively combine the two, punch at the same time as moving, move while punching, boxing method drives the body, and the body method in turn drives the boxing method, and truly achieves the boxing with the body, the body moves the boxing to, the fist and the body, and the body and the fist.

In this way, the original backing boxing method that was just fierce and violent suddenly became vivid, rigid and soft, and there was no lack of dexterity in the might, Qi An was no longer standing in one place, fighting steadily, but like Li Changsheng, his feet were moving at any time, and his body shape was constantly changing.

In the past, when Qi An punched with the waist, then drove the shoulder, elbow, and wrist, and finally concentrated the strength on the fist to hit out, but after the body was integrated, Qi An exerted force from the feet, along the ankle, knee, hip in turn, and then to the waist, and then passed to the shoulder, elbow, wrist, and finally to the fist, in this way, it is not only the upper body that exerts force, but gathers the strength of the whole body, and even includes the anti-shock force that erupted when stepping on the moon and chasing the stars, and the power of the fist suddenly increased dramatically, completely crushing Li Changsheng.

Qi An, who comprehended the breakthrough in the battle, combined his fist with his body, and his backing boxing method reached a new level, and his strength also rose a lot, and he was no longer suppressed by Li Changsheng, but turned his body like a swimming dragon, his fist was like a landslide, and he turned defense into offense, and he fought fiercely with Li Changsheng with dynamic braking.

At this time, Qi An is no longer under Li Changsheng in terms of martial arts attainments, and the cultivation realm is also equivalent to it, Li Changsheng has no advantage at all, even if he can turn into three ghosts, the ghost knife moves are unpredictable, but the advanced backing fist method no longer lacks subtlety and agility, and can already keep up with the rhythm of Li Changsheng, and Qi An's defense is too strong, so there are many less worries, plus Qi An's attack power far exceeds that of Li Changsheng, Li Changsheng did not dare to connect Qi An's fist at all, but was gradually forced to the disadvantage by Qi An, and the fierce battle was difficult.

All of a sudden, the situation reversed, it was originally Li Changsheng who pressed Qi An to fight, but now it has become Qi An who pressed Li Changsheng to attack, what happened in the meantime, many people didn't figure it out, including Li Changsheng himself.

Originally, Li Changsheng still had absolute confidence in himself, but when his sword couldn't break through Qi An's defense, he was a little frightened, but in the overall situation, he still had the advantage and the initiative was still in his own hands, so Li Changsheng was not too nervous, the other party's boxing technique was not a big threat to him, let alone attacking, it would be good to be able to hold it. But suddenly, Qi An's boxing power skyrocketed, and the cooperation with the body was intimate, no longer a stiff guard, but a punch in the move, punching with the body, fighting while walking, defending with the attack, both offensive and defensive, completely fast and agile, simply impeccable. In this way, Li Changsheng not only couldn't suppress Qi An, but lost his advantage and was suppressed by Qi An.

Could it be that he was going to lose? Li Changsheng couldn't believe that the situation would evolve like this, he was as proud as he was, the word "failure" had never appeared in his mind, he couldn't accept this result!

Seeing that the situation was getting worse and worse, Li Changsheng didn't dare to hesitate, and finally used a killing move that he had never used before. I saw him shout, and his figure turned into three again, and it was rare that he did not dodge, but launched an attack from the front and left and right sides of Qi'an at the same time, which was quite desperate and duel.

Of course, Qi An was not afraid of facing Li Changsheng head-on, he stepped forward, and drove the fist with his body, and in an instant, he made three punches in a row, the left horizontal fist, the right drill fist, and the middle was the collapse fist, respectively, facing Li Changsheng's three sword shadows.

However, what he didn't expect was that at this critical moment, a fourth ghostly figure suddenly condensed behind Qi An, and he silently swung a knife and slashed at the back of Qi An's neck.

This knife did not bring the slightest sound of wind, not even the miserable sword light did not bloom, and there was no trace of fireworks in the light, just like a ghostly ghost knife that suddenly poked out of nothingness, silently asking for people's lives.

Many fast-eyed people saw this scene and exclaimed in unison. You must know that it is only three figures between the virtual and the real, and it is difficult to distinguish between the real and the false, it is already difficult to deal with, who knows that Li Changsheng can actually differentiate the fourth figure, and the fourth figure that appears at the end is really like a ghost, his feet do not touch the ground, silently, just like the assassin hidden in the shadows, at the most critical moment, launch the most fatal blow.