The sky outside the window faded from jet black to fish belly white, and the morning dew slid down the window sill of the laboratory, but not even a slight sound could penetrate the barrier. The whole night, Rinto did not close his eyes, and he pressed down the dozen volumes of Senjutsu case collections on the desk. The imbalance types, physical differences, and out-of-control results were sorted into categories. The yellowed pages were covered with sticky notes he marked. All the core data were extracted and transcribed on a blank slate, forming a panoramic map of Senjutsu out-of-control covering thousands of years of samples.
He put down the charcoal in his hand and pointed his fingertips on the two question marks at the core of the map - these are the two core problems that Mount Myōboku has only described the phenomenon for thousands of years and has never dismantled the underlying logic. They are also the key to determining the security boundary of the Senjutsu system: What determines the affinity between Natural Energy and human cells? What is the essential mechanism of petrochemicals?
The Senjutsu inheritance of Mount Myōboku has always regarded "the energy balance of the three" as the core mantra, and attributed all loss of control to "failure to control the balance." However, thousands of years of failure cases clearly stated: the same cultivation method, people with different physiques, the rate of absorbing Natural Energy is very different, and the threshold of losing control is even different. Uchiha Even if the ninjas of E absorb only 20% of Natural Energy, they are prone to partial petrification; the people of the Uzumaki Clan can easily absorb more than 50%, but once the threshold is exceeded, the petrification speed will be several times faster than that of ordinary people; there are even ninjas from ordinary civilian backgrounds who find it difficult to absorb even Natural Energy and cannot reach the threshold of balance at all.
These differences cannot be explained by saying "the body sense is wrong". What Rinto has to do is never to follow the experience of the predecessors, but to completely dismantle the underlying rules of Senjutsu from the cellular level and the Chakra essential level, and turn the fuzzy "body sense balance" into a precise and controllable numerical model.
He got up and walked to the sterile operating room inside the laboratory and opened the constant temperature sample cabinet. The cell samples he had accumulated over the years were stored in categories in the cabinet. In addition to his own somatic cells, there were also cells of different constitutions that were specially separated and retained from the difficult case samples sent by Konoha Hospital - Uzumaki Clan's high Yang Release active cells, Uchiha Clan cells with Yin Release characteristics, ordinary Jonin somatic cells, civilian somatic cells without Chakra, and even cell samples of Toad and white mice retained from previous animal experiments, are all available.
This is the core foundation for his ability to complete precise controlled experiments. Mount Myōboku has been passed down for thousands of years, but has never done such a controlled experiment to control a single variable. He can only rely on the body sense and experience summary of generations, so naturally he cannot figure out the lowest level rules.
Rinto first customized four sets of parallel experimental plans, strictly controlling a single variable: the same ambient temperature, the same Chakra culture environment, the same concentration of Natural Energy, and the same sample volume. The only variable is cell samples from different sources.
In order to ensure that the concentration of Natural Energy is absolutely accurate, he specially built a miniature Natural Energy control array on the sterile operating table. The core of the array is the Mount Myōboku he sent with Sage Fukasaku The Natural Energy mother liquor purified by Toad Oil, combined with the gradient dilution configuration designed by him, can accurately control the concentration of Natural Energy to two decimal places, completely eliminating experimental errors caused by environmental fluctuations.
Everything is ready, and the first set of experiments is officially launched: Natural Energy and cell affinity gradient control experiments.
Rinto Wearing ultra-thin Chakra isolation gloves, he placed cell samples from different sources into numbered culture dishes, and then injected equal amounts and equal concentrations of into each culture dish through the array plate. Natural Energy, and at the same time start the high-magnification Chakra microscope to record changes in cells in real time, and accurately record the penetration rate, binding rate, and cell activity changes at each time node on the experimental stone slab.
The process of the experiment perfectly confirmed the conjecture he extracted from the case.
The first cell sample to show obvious changes was Uzumaki Clan. The moment Natural Energy was injected, it was quickly absorbed by the cells. The penetration rate was more than six times that of ordinary civilian cells. The activity of the cells increased significantly in a short period of time. However, once the proportion of Natural Energy exceeded the original threshold of Chakra in the cells, the cells immediately showed signs of structural disorder, and the fluidity of the cell membrane decreased rapidly.
Following closely behind are his own somatic cells. The penetration rate of Natural Energy is second only to the Uzumaki Clan sample, but his cells have a very strong ability to assimilate Natural Energy. The absorbed Natural Energy can be quickly anchored by Yin-Yang Release Chakra. Even if the concentration is increased, there is no obvious structural disorder, and the safety threshold is much higher than other samples.
The cell sample of the Uchiha Clan shows completely different characteristics: the cells have a low affinity for Natural Energy and the penetration rate is very slow. However, once Natural Energy penetrates, it is difficult to be absorbed by in the cell. When Yin Release Chakra is assimilated, it is easy to form free Natural Energy accumulation locally. Even if the overall concentration is not high, local cell solidification will occur, which perfectly corresponds to the frequent local petrification problem of Uchiha ninja in the case.
The most stable ones are the somatic cells of ordinary civilians - their affinity for Natural Energy is extremely low, the penetration rate is extremely slow, and it is difficult to absorb it. Naturally, it is also difficult to cause imbalance.
Rinto was not distracted during the whole process, recording a set of data every thirty seconds, adjusting the concentration gradient of Natural Energy, from low to high, and testing the safety threshold, critical value, and out-of-control rate of each cell step by step. For four hours, his movements were as precise as a precision instrument, with no error, and even the rhythm of his breathing was not messed up. All his attention was firmly locked on the changes in the cells under the microscope and the values on the slate.
When the last set of gradient experiment data was recorded, he looked at the densely packed values on the slate and finally derived an accurate conclusion:
The affinity between Natural Energy and human cells mainly depends on the Yang Release activity of the cells, that is, the vitality of the cells themselves - the stronger the body energy and the more prominent the Yang Release properties of the cells, the higher the affinity for Natural Energy and the faster the absorption rate. This is why people with strong Taijutsu and Uzumaki Clan are more likely to get started with Senjutsu and are more likely to absorb excess Natural Energy.
The safety threshold of Senjutsu cultivation never only depends on the "ratio of the three energies", but also depends on the assimilation efficiency of Natural Energy by the cells. The Natural Energy absorbed must be absorbed by itself The mental energy and physical energy are quickly anchored and assimilated into Senjutsu Chakra. Once the absorption rate exceeds the assimilation rate, even if the ratio of the three is temporarily balanced, the free Natural Energy will accumulate in the cells, eventually triggering loss of control.
This conclusion directly overturns Mount Myōboku's thousand-year empiric theory that only emphasizes "proportion and balance", and explains the root cause of countless cases in which "even if you practice according to the formula, you suddenly lose control."
Rinto archived the conclusion and complete experimental data, and without any pause, immediately started the second set of core experiments: the step-by-step disassembly experiment of the petrochemical mechanism.
In the inheritance of Mount Myōboku, it is only said that too much Natural Energy will cause petrification, and the petrification will be irreversible if it lasts for more than three hours, but no one has ever explained clearly how petrification occurs? Why is it the same energy imbalance that makes some people petrified, some people go crazy, and some people directly disintegrate their bodies? Where is the irreversible critical node?
He still used the idea of a controlled experiment, using his own somatic cells as the basic sample. By regulating the array disk, he accurately controlled the proportion of Natural Energy in the cells. Starting from the critical point of the safety threshold, he increased it step by step. He used a high-power microscope to track the entire process of the cells from normal to completely petrified, recording the subtle changes at each stage.
As the proportion of Natural Energy exceeded the critical value, the first change occurred: the free Natural Energy that could not be assimilated in the cells began to attach to the protein and lipid molecules in the cells, changing the spatial structure of the molecules, and the metabolic rate of the cells dropped rapidly.
Rinto defines this stage as the first stage of petrification - Imbalance Latency Stage. At this stage, there is no irreversible damage to the cell structure. As long as the free Natural Energy is quickly removed and the energy balance is restored, the cells can completely return to normal, which corresponds to the earliest signs of "limb stiffness and Chakra stagnation" in Senjutsu practice.
As the proportion of Natural Energy continues to increase, the second stage of changes follows: free Natural Energy begins to solidify a large number of organic molecules in the cells, the fluidity of the cell membrane is completely lost, the structure of the organelles is destroyed, the vitality of the cells quickly returns to zero, and signs of fibrosis and calcification begin to appear.
At this stage, even if the excess Natural Energy is removed, the damaged cells cannot be fully restored and permanent damage will be left. This also explains why many people who fail to practice Senjutsu will be permanently disabled even if they are rescued.
When the proportion of Natural Energy completely breaks through the critical line, the third stage, which is Irreversible Petrification Stage, officially arrives: all organic structures in the cells are completely solidified by Natural Energy, the cells are completely calcified, and even the genetic material The essence was destroyed, and the entire cell turned into a lifeless "stone". This kind of damage, even if it is repaired by the top Medical Ninjutsu, Yang Release, cannot be reversed - because the life structure of the cell itself has been completely destroyed.
Rinto repeated the experiment more than a dozen times, using cell samples from different sources, and verified that the three-stage model of Petrochemical was completely established in all samples, except that the critical thresholds and progress speeds of different cells were different. At the same time, he also dismantled the root causes of the other two out-of-control situations:
When the proportion of Natural Energy is not too high, but the spiritual energy is extremely weak, the free Natural Energy will invade the spiritual level and assimilate the consciousness of the cultivator, eventually causing the mind to be swallowed up by Natural Energy, becoming crazy and losing oneself, which is what is recorded in the case as "Natural Energy corrodes the mind";
And when the absorption rate of Natural Energy is too fast and the concentration explodes instantly, far exceeding the carrying limit of the cells, the cells will directly disintegrate instead of slowly petrifying. This corresponds to the extreme cases in the case where Natural Energy is forcibly absorbed and the body eventually collapses.
At this point, the core mechanism of the Senjutsu problem that has troubled Mount Myōboku for thousands of years has been completely dismantled.
It is no longer a vague "balance is not well controlled", but a clear logic that is accurate to the cellular and molecular levels. The changes, critical thresholds, and irreversible nodes of each stage are completely presented on the stone slab by Rinto using real experimental data.
The sun was setting again, and the lights in the laboratory were already on. Rinto took off his gloves, sealed all the experimental samples properly, and filed and organized the more than ten pages of experimental data, mechanism diagrams, and derivation conclusions one by one.
He leaned back on the chair and picked up the Senjutsu handbook of Jiraiya that he had taken out from the drawer before. In the blank space of the handbook, Jiraiya wrote several records of the precursors of petrification during his cultivation, saying, "I always feel like I'm suddenly stiff, even though I was still there before. I think the balance is fine." At that time, he only thought that Jiraiya's somatosensory control was not accurate enough. Now he understands that it is because the free Natural Energy has accumulated in the cells and entered Imbalance Latency Stage, but there are no obvious signs in the somatosensory.
His fingertips brushed over the scrawled writing. Rinto was silent for a few seconds, then closed the note and put it back where it belonged.
The sadness hidden deep in his heart eventually turned into more extreme rigor. The pitfalls Jiraiya had stepped on, the price he had paid, and the failure cases that countless cultivators had sacrificed their lives for over the past thousands of years, in his hands, finally turned into clear rules that were quantifiable, predictable, and avoidable.
He laid out a new blank slate, dropped the charcoal, and wrote a new title: Senjutsu Chakra Dynamic Balance Model Construction Plan.
Now that the determinants of affinity have been clarified, and the underlying mechanism of Petrochemical has been dismantled and understood, what he has to do next is to build a new, absolutely safe Senjutsu fusion model, completely smoothing the Gate of Death barrier that has existed for thousands of years.