Deep in the abyss of the Yunling Mountain Range.

Lu Kun sat in the Rongyuan Demon Cave, looking at his pair of arms with burning eyes, and there was an astonishing power of qi and blood rising on them, and the muscles contracted violently.

The hideous muscles coiled like a python sometimes swelled and doubled, sometimes retracted by half, and a layer of black hair occasionally appeared on the surface of the skin.

......

Recently, Lu Kun has been thinking about how to break through the bottleneck in the early stage of bone change.

Now the life force is abundant enough, but the strength of the muscles is so poor, if you forcibly operate the magic energy into the muscles, even if the muscles are in a tight state, they are a little unbearable.

Not to mention the muscles at this time, they can't be improved with the power of destruction, and even if they can, Lu Kun won't do it.

Stiffness is not the only characteristic of muscles, but toughness is just as important.

Soft as cotton, hard as iron, has always been Lu Kun's definition of physical muscles, the explosion of strength is a process of muscle fiber relaxation, if the flexibility is insufficient, the strength can not be exerted.

Through the tempering of the power of destruction and the conception of the power of life, the hardness and flexibility of the muscles have been increased to the current level in turn, but the last step is best to break through both at the same time.

If the hardness reaches the maturity level first, and the life force is unable to produce the remaining toughness, the loss will be great.

To do this, the breakthrough direction that Lu Kun thought of was the transformation and fusion of blood and muscle.

Long before the osseogenesis stage, the flesh and blood were united, and at that time, part of the essence of other muscle fibers was transferred to one place through blood, so as to enhance the strength of local muscles.

At this time, the flesh and blood fusion he studied was different, it was to transform the blood into a muscle fiber entity, and then fuse it with the original muscle to achieve the effect of improving the material.

This is equivalent to an immortal cultivator fusing two mana of the same origin to improve the quality of mana, but Lu Kun only uses muscle and blood.

When we first entered the stage of bone transformation, although the physical body has been integrated, and there is a certain connection between muscles, blood, internal organs, and bones, they cannot be transformed into each other.

Muscles cannot be turned into blood, blood cannot be turned into internal organs, and internal organs cannot be turned into muscles.

With the cultivation of the early stage of bone transformation, the muscles and blood can already be converted into each other, but whenever part of the blood is converted into muscle fibers, the original muscle fibers will be squeezed out of the muscles and turned into blood.

This condition is caused by tendons.

Flesh muscles, strictly speaking, are called skeletal muscles, tendons are the connection points between skeletal muscles and bones, and the number of muscle fibers is limited by tendons, even if blood is converted into a large number of muscle fibers, it cannot grow outside the tendons.

If the blood is first converted into tendons and thickened, the number of muscle fibers is liberated, and then the muscle fibers are converted through the blood and fused with the original compression and mutual compression.

This method is not rigid tempering, it can improve its hardness and flexibility at the same time, complete the transformation of muscle material, and break through the bottleneck of the initial stage of bone transformation!

At this point, the difficulty is how to convert blood into tendons, and the expansion of tendons is not a miracle of the arm?

......

Time passed, and Lu Kun absorbed the pure demonic aura around him, constantly recovering the essence blood in his body that was rapidly depleted.

If it was before, how could he maintain the psychic giant arm for a long time, basically he used this magic power in battle, the duration was very short, just to perceive the energy operation inside, how to use the power of the surge, and so on.

Now that he is at the peak of the early stage of bone transformation, the concentration of essence and blood in his body has greatly increased, and he is still in an environment like the Rongyuan Demon Cave, so he can maintain this magical power luxuriously.

It took two days for Lu Kun to open his eyes, and he looked extremely surprised: "I didn't expect the essence of the supernatural power to be extremely helpful to break through this bottleneck!"

He found that the casting of the psychic giant arm is essentially a transfer of essence blood energy, and this supernatural power is a kind of use of essence blood energy, but the bloodline of the giant ape makes this use simpler.

When the supernatural power is activated, a unique wave of blood will gush out from the depths of the essence blood, surging to the bones of both arms and the tendons on the surface of the bones, which seem to be infused with some kind of energy, resulting in mutations.

The bones are blessed by energy and enlarged, and the muscles, tendons, first swell, and then the muscle fibers also thicken.

"After the body is integrated, the whole body belongs to the same cell origin, and the emission of this blood fluctuation is essentially the transfer of blood energy, tendons can be expanded, and so are bones, which means that blood can also be transformed into bones!"

"In the early stage of bone change, it is the cultivation process of blood and muscle transformation, so in the middle stage of bone change, is it the transformation of blood and bones. ”

"If you keep cultivating like this, wouldn't it be that all the flesh and blood components in the physical body can be transformed into each other, muscles into blood, blood into bones, bones condensed into blood, cultivation to the end, and even to the point of dripping blood and reborn into the flesh!"

Thinking of this, Lu Kun couldn't help but laugh at himself: "The rebirth of blood is too exaggerated, even if the bones of the mature material can be turned into blood, how can they recover again, maybe the soul will die directly." ”

He shook his head, put away the mess in his head, and returned to the original point.

"The changes in the essence and blood of the arm magic power did not increase the number of muscle fibers, but only made them expand, and what worked for me was to increase the tendon part. ”

"As long as you find the way to transform the tendon from the blood essence, it will be half the battle!"

Lu Kun took a deep breath, the qi and blood in his body surged, and the muscles on his arms quickly dissipated, revealing his bare arm bones.

A ferocious wave flashed, and the silver arm bones swelled at a speed visible to the naked eye, like two thick silver pillars.

Gradually, a layer of blood appeared on the silver arm bones, and clumps of silver blood emerged from the tendon nodes attached to them, as if silver flowers had grown on the bones.

After about half a day, the bones of his arms began to tremble, sometimes shortening, sometimes expanding, and the tendons on it were also slightly twisted, and the surrounding demonic qi and spiritual energy quickly poured into the depths of his bones, through the bone marrow cavity, constantly recovering essence and blood.

Over time, the bones of the arms eventually returned to their original state, and the silver flowers on the tendon nodes were much larger than before.

At this time, Lu Kun suddenly stood up. In addition to the arms, the muscles and internal organs of other parts were also condensed inward, turning into a silver skeleton.

The tendon flowers on the arm bones began to spread to other places, like stars, and in an instant, the starry sky covered with silver bones.

The surrounding aura and demonic qi became more and more turbulent, forming two layers of black and white spirit circles around it, and although the magic power of the arm was removed, the consumption rate of essence blood did not decrease but increased.

After a while, on the surface of the bone, among the hundreds of tendon flowers, blood-red sprout-like muscle fibers faintly emerged, which grew rapidly and intertwined with each other, forming thick and hideous muscles.

The number of all muscle fibers has skyrocketed by as much as 50%!

The trapezius muscles on the shoulders are like two mountains of meat, arching against the silver skull, the pectoralis major muscle is even higher and bulging, like two balls of flesh covered with blood-colored lines, and the latissimus dorsi muscle behind is like a pair of wings, like a turtle shell, inlaid in the back.

Lu Kun's entire body turned into a deformed meat ball monster......