At this time, Lu Kun really felt the extremely full of qi and blood in his body, and the mana of the peak of the middle stage of foundation building, like a dream, and the changes that had occurred in the breakthrough in the past two months made him a little unbelievable.

More than forty days ago, after he had finished healing, he tried to observe the new blood in his bone marrow.

Only then did I find that the bone marrow deep in the bones had turned golden yellow, and you must know that the bone marrow that could make blood before was red, and the bone marrow that did not make blood was yellow.

But when Lu Kun broke through the bottleneck, he didn't know what changes had happened in his body, not only the red bone marrow that he could make blood, but even the yellow bone marrow that had no hematopoietic function before had turned golden.

Golden-colored bone marrow?

Why are they all able to make blood when they all change color?

Lu Kun, who couldn't figure out this reason, could only continue to operate the mana in the bone marrow cavity, and through its urging, he tried to make the golden bone marrow accelerate hematopoiesis and complete the exchange process.

And in the process of this blood exchange, the mana in the blood began to increase slowly.

Lu Kun found that in order to generate one blood mana in his body, then he needed to consume nine mana in his bone marrow cavity, which means that the conversion ratio of this blood mana was nine to one.

In other words, the golden bone marrow needs to absorb nine parts of mana, and these energies can produce a fresh blood with mana.

This conversion rate is also too low.

Lu Kun could only keep this doubt in his heart, fortunately, the aura in the Demon Island was countless times richer than that in the outside world, even if this transformation ratio was a bit large, there was no problem.

When the five days passed, that is, after the first round of blood exchange, Lu Kun began to feel that something was wrong, because in these five days, he had increased his mana a little too much.

You must know that when he first entered the early stage of the foundation building period, the bones could only hold a small amount of mana because of the lack of tempering, and according to his speculation, the middle stage of foundation building of physical cultivation should also have such a limit, and the mana that blood could hold at the beginning was limited.

However, in the previous five days, Lu Kun had not encountered the limit of mana, so he wanted to find this limit, and as a result, he kept cultivating, and the blood in his whole body changed round after round.

The mana in the blood, until the end of the ninth round, the mana in the blood has a sense of limit.

And at this time, Lu Kun also discovered all his physical mana, reaching the peak of the middle stage of foundation building, which immediately surprised him.

Shockingly, this strange phenomenon between bone marrow and blood mana.

Happily, he had reached the peak of the middle stage of foundation building so quickly, saving a lot of time, so that he would have more time to study the method of body cultivation and knotting.

Lu Kun couldn't believe it, so he immediately mobilized the power of qi and blood in his whole body.

Sure enough, that huge qi and blood made him feel frightened, even the fifth-level silver-spotted leopard of Uncle Xu at the beginning didn't seem to be as sufficient as him.

......

After bowing his head and pondering for a long time, Lu Kun found that the big black man in front of him was prostrate on the ground, and the eyes looking at him were even more awe-inspiring.

His expression moved, "Da Hei, do you feel the enhancement of the power of my bloodline?"

Daikoku immediately whimpered, leaving tears in his eyes.

"Squeak, squeak!" Xiao Jin quickly translated for Da Hei.

Lu Kun showed a thoughtful expression: "Sure enough, is it because I have entered the middle stage of foundation building, that is, the realm of blood refining of physical cultivation, the bloodline aura of the golden giant ape is stronger." ”

This time, Dahei felt a little bit of the breath of its ancestors. ”

"It seems that that golden giant ape is really an ancient demon beast with immeasurable strength, and the race of the mountain black ape is the bloodline side branch of this golden giant ape. ”

"Woohoo!" Dahei cried out with emotion again.

"Squeak!"

Lu Kun nodded and said, "Okay, when I get out of the Demon Island, I will definitely visit your Mountain Black Ape Clan when I have time, I do have some things to ask the elders in your clan." ”

At this moment, Xiao Jin suddenly remembered something, and danced to Lu Kun, quite excited.

When Lu Kun heard this, his face changed: "What are you talking about, when my mana rushed into the bone marrow cavity, Xifeng's demonic qi was attracted by me and entered my body?"

"Squeak! squeak!"

The little monkey nodded, gesturing with his hand.

"You say that I have been attracting demonic energy for a day and a night?"

When Lu Kun heard Xiao Jin's words, he immediately fell into deep thought.

"Isn't the time when Xiao Jin said that the demonic energy was attracted, is it when I heard the roar of the golden giant ape?"

"Xiao Jin said again that these demonic qi entered my bone marrow cavity and disappeared, could it be that I suddenly reached the peak of the middle stage of foundation building. It's all caused by the bloodline of the golden giant ape?"

Thinking of this, Lu Kun couldn't help but recall that many years ago, when he was cultivating the Vajra Technique, he was trapped in the magic circle by the old ghost Murong to cultivate, and the fourth layer of the Vajra Jue was to use the spiritual energy to refine the marrow and cultivate blood.

"At that time, I quickly completed the cultivation of this realm because of my bloodline, and now I use mana to refine my bone marrow and improve my blood from the root, and I have also entered the Dacheng stage of this realm in a short time. ”

"Looking at it this way, it can only be explained by the same golden giant ape bloodline, after all, it is the blood of the demon ape, and it is not surprising to absorb the demon qi, as for the demon qi entering the bone marrow and disappearing, it should act on my bone marrow. ”

"The bone marrow has turned golden, most likely caused by demonic energy. ”

"Since it is the reason for the bloodline of the golden giant ape, then it is the same as the breakthrough of the Vajra Jue at the beginning, there is no aftermath. ”

"As for the many problems in this mid-stage foundation building and body cultivation blood realm, when the time comes, when Qingtian and them reach this realm, I will study it carefully. ”

"Xiao Jin is a demon beast, and the situation of it to a third-level demon beast is definitely different from physical cultivation. ”

Lu Kun thought about it for a while, and attributed the reason for his strange promotion to the peak of the middle stage of foundation building to the golden giant ape bloodline.

As for normal body cultivation, whether the bone marrow will change color, the conversion ratio of mana and blood mana in the bone marrow cavity, and the periodicity of exchange transfusion.

He planned to wait for Zhao Qingtian's disciples to be promoted, and observe and study it carefully, his situation was that he skipped the cultivation in the middle stage of foundation building, and there was a trace of experience in the process of physical cultivation, which would have an impact on the exercises he established later.

Lu Kun stopped thinking, looked at the little monkey and said: "Xiao Jin, that demonic qi was attracted to me, it is very likely that it is the reason for my bloodline, you don't have to worry about this part, you have written down the other processes of impacting the bottleneck." ”

Jin nodded vigorously.

Then Lu Kun took a new robe from the storage bag and put it on, looked at the solid ground that was still pressed down under his feet, pinched the fist of his right hand, and smashed it down with a fist directly.

"Boom!"

I saw that the stone, which had been strengthened by three mid-level high-level fossil talismans, shattered, and even this cave that had been temporarily excavated by Lu Kun trembled.

Lu Kun sensed it carefully, and muttered: "The strength of the physical body has increased a lot, and it looks like it is almost 70,000 jin and 5,000 jin." ”

"Similar to what I predicted before, this realm will not increase the strength too much, but it will increase the endurance of the physical body, as well as the staying power of high-intensity attacks. ”

"And under my perception, the blood vessels of the whole body have been strengthened a lot after these forty-five days of blood cultivation, but I don't know what the effect is. ”