The correct way for the Uchiha to rise

Later on, they even merge to a certain degree, becoming one in essence, energy, and spirit, achieving complete integration!

However, while that's the theory, how exactly should it be implemented?

"Foundation building is a kind of physical evolution. The soul will benefit from this process, but it will not be the main focus. Soul cultivation comes later, so there's no rush."

"I have experienced physical evolution many times, but they were all minor evolutions with no significant improvement in level."

"My body is now at a state of saturation, on the verge of evolution. All it takes is a stimulus to begin the so-called evolution."

Uchiha Kiyoshi always believed that life has a spontaneous tendency to evolve, but it is just that it lacks the ability to break through the bottleneck. As long as the bottleneck is broken and enough energy is provided, the life form itself will evolve in the right direction on its own.

Of course, this involves an element of gambling. Although that's what he thought in his heart, Uchiha Kiyoshi still didn't intend to do nothing at all; at least he wanted to guide the direction.

"All cultivation is a process of pursuing the evolution of life. In this process, life is constantly evolving, the weaknesses of the flesh and blood body are gradually improved, and life gradually moves towards perfection."

Regeneration from a drop of blood, limb regeneration... these are all characteristics of the later stages of physical cultivation, and perhaps they are real.

Hashirama Senju possessed powerful regenerative abilities, which may have originated from his evolved body.

Hashirama Senju inherited the Sage Body of the Sage of Six Paths and brought it to its fullest potential, making him far superior to ordinary people in terms of life level. His powerful self-healing ability was not something that arose out of nowhere.

"Evolution, perhaps Hashirama cells are a breakthrough point."

The direction of physical evolution can be referenced from the immortal body.

Thinking of all that he had seen in his past life, he realized that after cultivating to a high level, his body could no longer be described as flesh and blood.

Perhaps the term "energyization" can clearly express this change.

Of course, it's not that the body has turned into energy, but rather that it is gradually transforming into the characteristics of energy. It is still a body of flesh and blood, but in terms of its composition, it is almost entirely built of energy!

Uchiha Kiyoshi may not need to do this yet, but it might be a direction to consider.

"Let's study the intercolumnar cells first."

Before returning, Uchiha Kiyoshi sealed and packed all the experimental equipment from the Grass Country laboratory in the future timeline and brought it back with him.

The equipment of the future far surpasses the ones currently used by Uchiha Kiyoshi in terms of precision and other aspects. It's unclear whether this is due to Orochimaru's own improvements, or simply because the technology at that time had advanced to this level. Or perhaps Orochimaru, as a client, was providing too much, and they manufactured it on a larger scale according to Orochimaru's needs?

Who cares, as long as it works.

Uchiha Kiyoshi took out the equipment, set it up in the open space of the first-floor laboratory, adjusted it, and then took out the culture medium containing interstitial cells to begin his research on interstitial cells.

Uchiha Kiyoshi didn't just obtain Hashirama's cells; he had simply focused on studying vitality rather than the cell's structure and composition.

With Uchiha Kiyoshi's seclusion, his clones in various locations began to cooperate with his main body in the final research before reaching the Foundation Establishment stage.

Each of them used the time they had spent developing ninjutsu to conduct a final review.

Foundation building is a major event, especially the emergence of a new realm, and there are too many details to prepare.

I won't go into the details of what to prepare beforehand for a breakthrough, but I will discuss the order of events, what to do, and how to do it. In other words, I will discuss the evolution of the body, how to evolve, and how to break through the barrier to finally obtain the target. All of these things need to be prepared for.

Time flies by, and before we know it, another year has passed.

Chapter 240 Returning to the Innate Realm Afterbirth, Foundation Establishment!

A year has passed in the blink of an eye.

The preparations for Foundation Establishment involved far more details than one could have imagined. It wasn't that the whole process was particularly complex, but rather that Uchiha Kiyoshi was the first to do it and needed to create it himself. How to do each step, what methods to use to complete it, and how not to affect the other steps were all things that Uchiha Kiyoshi needed to study.

Fortunately, Uchiha Kiyoshi's right eye technique was completed shortly after his return, which greatly helped him.

Takamagahara, Uchiha Kiyoshi's right eye technique, Yin-Yang Release.

He was able to create all things beyond life itself. This life refers to beings with souls, not just living things. Knowing the structure and functions of cells, Uchiha Kiyoshi was able to create cells out of thin air. Of course, without fusion with a soul, the potential for cell division was nonexistent.

Perhaps influenced by his left eye, his right eye's Yin-Yang Release technique also acquired a trace of time attribute. Any substance created through this eye technique could have its time flow altered, albeit slightly. However, combined with the left eye's technique, the extent to which this time flow could be altered was significant. This eye technique was significant for much of Uchiha Kiyoshi's research.

Putting aside other aspects, this eye technique plays a crucial role in Uchiha Kiyoshi's current preparations for foundation building. Although the cells created lack the potential for division, their evolution under Uchiha Kiyoshi's various methods conforms to natural laws, providing him with ample experimental material.

At the same time, the ability to change the flow of time is also quite important. Although it may not have played a role in this study, it does not mean that it is useless.

In one year, Uchiha Kiyoshi completed all the preparations for Foundation Establishment.

On this day, all of Uchiha Kiyoshi's clones stopped what they were doing and waited patiently for the main body to complete its foundation building, which is the process of returning from the acquired to the innate state.

Kiyoshima Island.

Uchiha Kiyoshi's base.

Uchiha Kiyoshi sat cross-legged in the special training room, opened his eyes, and shook off the dust from his body.

He has been sitting here cross-legged for half a month. During this time, he has been sensing the cells in all the important structures of his body, and has roughly classified which ones are his own tissues and which ones are impurities and filth.

There is a process of cleansing the marrow and refining the essence during the Foundation Establishment stage. Uchiha Kiyoshi did not know how this process was completed in the cultivation world, so he could only rely on his own initiative to eliminate it.

Of course, it's possible that the body spontaneously undergoes this process during evolution, but just in case, Uchiha Kiyoshi made preparations himself, otherwise he might have wasted such a good opportunity.

Taking out the scroll, Uchiha Kiyoshi released over a hundred shadow clones. These were the shadow clones Uchiha Kiyoshi had accumulated over the past year, all of which were sealed away, and even their wills were temporarily sealed.

Their sole purpose is to provide energy for Uchiha Kiyoshi's foundation-building process.

That's right, it provides energy. When a shadow clone releases some chakra near the main body, it can return to the main body. Moreover, if the shadow clone releases the chakra on its own, the return rate can even reach 80%.

These shadow clones are energy reserves that Uchiha Kiyoshi prepared specifically for his Foundation Establishment. They are shadow clones created by Uchiha Kiyoshi after he converted all the chakra in his body into gentle Sage Chakra. So-called gentle Sage Chakra is chakra formed by the fusion of purified natural energy and spiritual energy, and its concentration is much higher than that of the most basic chakra.

At this moment, the chakra within Uchiha Kiyoshi's body was all gentle Sage Chakra.

"It's about to begin."

Taking a deep breath, Uchiha Kiyoshi prepared to begin.

Chakra forms a membrane on the body's surface, isolating the inside from the outside. At the same time, Uchiha Kiyoshi begins to circulate a health-preserving technique, restoring the chakra to purified natural energy.

All of this is part of the preparation process.

Hold your breath and concentrate.

Uchiha Kiyoshi controlled the remaining chakra to destroy the cells within his heart, causing damage at the cellular level.

At the same time, he formed hand seals, and the chakra outside his body flowed to produce a specific technique. Then, the natural energy inside his body was controlled by Uchiha Kiyoshi and flowed to the damaged cells.

This was one of Uchiha Kiyoshi's previous preparations. Long ago, when Uchiha Kiyoshi practiced body-cultivation techniques, he actually relied on chakra to envelop his body's energy, which was too inefficient. Uchiha Kiyoshi had long ago been thinking about finding a way to directly control natural energy and had begun preliminary exploration. Some time ago, Uchiha Kiyoshi summarized these efforts and then developed a method that uses chakra to form a jutsu, and then the jutsu works to manipulate natural energy.

The activation of the left eye's pupil technique slowed the flow of time in the corresponding area of ​​the heart, buying Uchiha Kiyoshi more time.

Destruction, reconstruction.

This is Uchiha Kiyoshi's method of breakthrough.

There is no division process; it's just that the same cell is broken down, and then a large amount of gentle natural energy flows in to reorganize the cell structure.

Uchiha Kiyoshi carefully controlled the process, and after a full hour, all the cells in his heart had finally completed at least ten cycles of destruction and reconstruction. At this point, Uchiha Kiyoshi's face was somewhat pale. Although he had temporarily slowed down the flow of time, buying himself a lot of time, the blood supply to his heart had also decreased accordingly. After a full hour, his body gradually weakened.

Next is the lungs.

The breakthrough in the cells of the heart is completed, followed by the lungs, and then the other internal organs.

With his experience in the heart, Uchiha Kiyoshi gradually became more skilled and was able to complete the last organ in just ten minutes.

After all the internal organs are completed, the next step is the spinal cord, bones, head...

Uchiha Kiyoshi abandoned the most flesh and blood cells, and only reorganized the cells of the most important parts of the human body.

"Full-body operation."

The remaining gentle, natural energy spread throughout Uchiha Kiyoshi's body, nourishing his physique.

"Yang Dun"

Natural energy was imbued with the Yang Release nature transformation by Uchiha Kiyoshi, and the recombined cells received sufficient nourishment, at which point they were able to divide again.

All useless cells were eliminated by the Uchiha clan and expelled from the body along with various impurities.

At this moment, Uchiha Kiyoshi was covered in blood, and there wasn't a single part of his body that was unharmed.

Stem cells in various parts of the body re-divide and differentiate, and flesh and blood are reorganized.

Uchiha Kiyoshi's figure began to slowly become fuller.

"One time isn't enough." Although it has undergone more than ten recombinations, the energy stimulation on the genes is still insufficient, at most reaching the level of changes needed for the adaptation period of bloodline limit chakra. That's still not enough.

However, at this point, Uchiha Kiyoshi's chakra was running low.

As if sensing the situation within Uchiha Kiyoshi's body, the two shadow clones around him formed hand seals and dispelled their clones, allowing Uchiha Kiyoshi's chakra to replenish once more.

Then, Uchiha Kiyoshi repeated the previous process once again.

The shadow clone dissipates, cells are destroyed and reorganized, and then divide and differentiate.

Uchiha Kiyoshi endured the pain, repeating the process again and again.

Finally, within the cells, Uchiha Kiyoshi realized that the cells had met the conditions.

It contains significantly enhanced energy, has a more powerful ability to process energy, and also has a significantly improved affinity for energy.

It controls the chakra outside the body, which envelops a small amount of natural energy and enters the body, distributing it around the cells.

At this moment, a miraculous scene unfolded: the cells began to absorb natural energy and, at an extremely rapid pace, purified it.

Uchiha Kiyoshi smiled. "It's done."

Next step.

Uchiha Kiyoshi released the chakra membrane on his body and directly absorbed natural energy.

The cells have divided too many times, and their vitality has been exhausted to the limit, so they need to be replenished.

"Let's see how much it can improve."

Uchiha Kiyoshi activated his Body Nourishing Technique and Soul Nourishing Technique simultaneously. Every cell in his body frantically absorbed natural energy. Surprisingly, despite so much natural energy entering his body, Uchiha Kiyoshi showed no signs of being assimilated.

On one hand, the cells were thirsty, like parched land receiving rain, absorbing energy with frenzied speed, rapidly purifying the volatile energy, naturally unable to assimilate Uchiha Kiyoshi. On the other hand, the repeated recombination seemed to have unlocked the shackles of the cells, allowing them to continuously adapt as natural energy entered the body.

If this continues, Uchiha Kiyoshi's body may no longer need to worry about being assimilated by natural energy!

This is the innate body.

The innate body imagined by Uchiha Kiyoshi. It's not as lofty as some claim; it simply means being unaffected by natural energy, possessing the ability to directly absorb natural energy, and having sufficient capacity to purify it.

Natural energy surged in, replenishing Uchiha Kiyoshi's life force. But that wasn't enough; his life force continued to grow.

This means that the integration of the soul and body is constantly improving, and the soul's compatibility with the body is increasing.

Until a certain moment, Uchiha Kiyoshi seemed to break through a critical point, and his whole being seemed to be sublimated.