When the second level of the Nine Turns of the Heart Method broke through to the third level before, Chu Nan had already tried to revise the Heart Method left by Su Xuansheng back then, and finally found out the way of internal breath operation that improved the most for him with his powerful data ability, so as to successfully break through to the third level of the Nine Turns of the Heart Method.

It was also through that attempt that Chu Nan understood a truth.

No matter how powerful the exercises left by the predecessors are, they are not necessarily completely suitable for them.

The condition of the meridians in each martial artist's body is different, and the enhancement of internal breath obtained by running the same internal breath exercise will naturally be different.

And this is the reason why different martial artists have different effects when practicing the same internal breathing exercise.

Chu Nan had previously used his data ability to modify the second and third Nine Turning Mind Methods to make them more suitable for him, so that he could increase his internal breath extremely quickly, and in a short period of time, he increased the strength of his internal breath from the beginner hegemonic level to the current level close to the fourth-order hegemonic level.

With the experience of these two improvements, now Chu Nan has revised and improved the Fourth Nine Turning Heart Method again, which is naturally more handy.

However, this time, Chu Nan did not change the internal breath flow route as soon as he came up like he had done when he improved the second and third layers before, but concentrated his energy on those newly opened meridians.

The biggest difference between the fourth and the first three is that it needs to open up the seven main meridians and the twenty-six secondary meridians, so that the internal breath can run in more meridians and get more increases brought by the meridians.

However, Chu Nan found that when the internal breath flowed into those newly opened meridians, it often not only did not allow the internal breath to be strengthened, but sometimes even brought a small weakening.

The reason is very simple, because these meridians have recently been opened, and unlike the meridians that have long been accustomed to the operation of internal breath, when the internal breath is running in it, it will always appear slightly jerky and even sluggish, and it is naturally difficult to obtain normal enhancement.

This is actually a normal phenomenon, and even in the classroom of the martial arts branch of Xiyun Academy, the teacher who teaches the internal breathing exercise specifically said about it.

Generally speaking, a martial artist only needs to continue to practice the exercises and continue to let the internal breath operate in these meridians, so that through the accumulation of time, these newly opened meridians can be improved little by little, so that they can gradually adapt to the flow of internal breath, so as to enhance the internal breath like those previous meridians.

This process is actually part of the martial artist's hegemony refining the flesh * body.

For the average martial artist, the length of this process varies depending on the talent.

The higher the talent, the shorter the time for meridian tempering, the faster the internal breath will naturally improve, and the sooner you can become a more powerful martial artist.

The worse the talent, the longer the meridian refining time, the slower the internal breath will naturally improve, and even some simply can't completely refine the meridians for years or even decades, of course, don't expect to become a powerful martial artist.

The vast majority of hegemon-level martial artists basically fell on this level.

As for Chu Nan's talent...... It's not particularly good, but it's not bad either.

The reason why he hadn't been able to break through after cultivating the second level of the Nine Turns Mind Method for thirteen years was because the Nine Turns Mind Method was too special.

In fact, his meridians themselves were tempered without any problems, otherwise it would be impossible for him to barely hold on to them when he used the high-turn internal breath several times in a row before.

But that's not enough. Chu Nan now wants to improve himself quickly, and achieve the perfect hegemony before his body is fully grown and his body is completely formed, and it is of course not possible to continue to cultivate slowly and step by step.

"Ordinary martial artists can only take their time, but I ...... It's not an ordinary martial artist! ”

Chu Nan's mind moved, and a wisp of internal breath flowed out of the dantian, and soon it ran to a newly opened main meridian.

After entering this meridian, you will feel that the flow speed of the internal breath has slowed down significantly.

Although it is not as difficult as walking on a muddy path when it is opened, compared to the other meridians that are now enough to withstand the normal operation of Chu Nan's four turns, it is still a huge difference between the potholed dirt road in the countryside and the incomparably flat highway.

After controlling this wisp of internal breath through this meridian, Chu Nan controlled it to run in his body for a week, and set off from the dantian again.

Two transfers of internal interest.

This wisp of internal breath after the second rotation amplification soon flowed into this meridian under the control of Chu Nan.

As soon as he entered, Chu Nan immediately felt that there was a slight vibration in this meridian.

"Sure enough, it can't be compared with those mature meridians, and it's a little unbearable to breathe after only two turns."

This was the first time that Chu Nan had mobilized the second turn of internal breath into these newly opened meridians, and he immediately found that it was much more fragile than those mature meridians.

But this is exactly the purpose of Chu Nan's experiment.

After controlling the inflow of this second-turn internal breath, Chu Nan continued to maintain the second-turn internal breath, but increased the intensity of the internal breath a little, and flowed into this meridian again.

This time, the vibration of this meridian was a little stronger, but it was still able to hold on.

Chu Nan once again strengthened his inner breath.

……

Chu Nan's body shook suddenly, and a wisp of blood suddenly oozed from the corner of his mouth.

"Hey, it's finally done."

Chu Nan didn't see any panic on his face, but showed a hint of a smile.

After many trials and trials, after he raised this wisp of second-turn internal breath to a certain strength, he finally exceeded the upper limit of this meridian, causing his meridians to be damaged, and he naturally spat blood.

If you change to another martial artist and suffer an internal injury and vomit blood while practicing the internal breathing exercise, you will definitely stop obediently to heal your injuries.

But for Chu Nan, this meridian damage was his purpose at all.

After writing down in his mind the data on the strength of the internal breath that had caused the damage to that meridian just now, Chu Nan once again mobilized a much weaker wisp of internal breath to pour into that meridian.

This time, it is the internal breath that maintains a high-frequency vibration state, and not only will it not cause more serious damage to the meridians, but it can repair the damaged meridians.

After adjusting the different frequencies several times, Chu Nan found the most suitable frequency and intensity of the internal vibration to repair the damage to this meridian.

Soon, under his control, the damaged meridian was repaired at an alarming rate.

After confirming that the meridians were almost repaired, Chu Nan mobilized a trace of internal breath inflow, and found that the operation of internal breath in this meridian was indeed smoother than before.

"Good, that's it."

Chu Nan took a breath, temporarily let go of this meridian, and mobilized a wisp of internal breath to transfer into another newly opened main meridian.

After several more trial and error, Chu Nan mobilized a second-turn internal breath that was stronger than just now and poured into this main meridian.

"Poof—"

This time, the damage to the meridians was a little stronger than he expected, and it turned out to be a mouthful of blood spurting out directly.

Chu Nan was slightly embarrassed and reached out to wipe the blood from the corner of his mouth, and after a little refreshment, he mobilized a trace of high-frequency vibration of internal breath to flow into this main meridian and began to repair.

Feeling that this meridian had obviously become much stronger after being repaired, Chu Nan smiled slightly.

Compared to cultivating the internal breath exercises, and then using the internal breath to gradually refine the meridians little by little, and improving the toughness and strength of the meridians by repairing the damaged meridians, it is undoubtedly countless times faster.

Of course, it is undoubtedly much more barbaric and dangerous...... (To be continued.) )