Early the next morning, Rinto had just completed the first round of testing of Pain Black Receiver and Animal Path tissue samples, and archived the basic characteristics of Rinnegan Chakra, when several clear Frog Song sounds came from outside the hospital gate.
Different from the noise of ordinary frogs in the Konoha pond, this Frog Song is wrapped in the extremely pure Natural Energy. Even through two layers of barriers, you can clearly feel the warm and moist breath that is in the same frequency as heaven and earth - it is the breath of Mount Myōboku.
His fingertips paused, and he casually put the sealed test tube containing the sample into the thermostat. He raised his hand to remove the outer seal of the courtyard door. His tone was still his usual straightforward tone, without any special treatment for the "immortal": "Come in, don't make any noise."
The courtyard door slid open silently, and Sage Fukasaku jumped in, leaning on the wooden staff inlaid with jade. He still had injuries that had not completely subsided. His left arm was bandaged, but his movements were still neat. Behind him were two small psychics. Each beast Toad has several tightly sealed volumes stacked on its back. The thickest volume is almost as high as half of little Toad's body, making their steps heavy.
As soon as he stepped into the courtyard, Sage Fukasaku paused subconsciously. He has lived for thousands of years, and his perception of the fluctuations of Natural Energy and Chakra is extremely keen, but standing in this small courtyard, he was completely He couldn't feel the slightest breath inside the laboratory. Even Rinto's own Chakra was wrapped in an airtight barrier. Only the small area he deliberately let go of could sense normal environmental fluctuations.
"I have long heard from Jiraiya and Naruto that Mr. Rinto's ability is unfathomable. This barrier alone is much stronger than the concealment formation inherited by Mount Myōboku." Sage Fukasaku stroked his white beard on his chin, and his tone was full of genuine admiration, without any frivolous politeness.
Rinto didn't answer these words. He looked directly past him and landed on the scrolls on the backs of the two little Toad. He got straight to the point. "I already know about Jiraiya. You guys are not here to talk nonsense. If you have any information, just get it. If you have any requests, just make them. Don't delay me from doing experiments."
The tone was so straightforward that it was almost rude. Jonin, who was Konoha, would have been at a loss for a while, but Sage Fukasaku didn't care. Instead, he smiled and motioned to little Toad to put all the scrolls on his back on the stone table in the courtyard.
"Before Jiraiya went to Amegakure, he made a special trip back to Mount Myōboku and mentioned you to us many times." Sage Fukasaku jumped on the stone table and tapped the shiny thick file on the top with his fingertips. He said that your understanding of Chakra is the best he has ever seen in his life. Even something like Senjutsu, which relies on talent and physical sense, can be broken down into precise configurations and formulas. Even the most difficult energy balance problems can be stably solved by anchoring the configuration."
He paused and added, "Naruto went to Mount Myōboku to practice Sage Mode some time ago. I couldn't control the balance of the three energies well at the beginning. I was almost completely petrified several times. I used the medicine you gave me before. His anchoring configuration actually stabilized instantly, and his cultivation speed was more than twice as fast as Jiraiya's back then. Only then did we realize that your understanding of Senjutsu has long exceeded our inherent understanding of this inheritance."
Rinto's brows moved imperceptibly. He had indeed optimized the fusion anchor point of Senjutsu and Nine-Tails Chakra for Naruto before, but he did not expect that Naruto would fully feedback the details to Mount Myōboku. But he did not interrupt, and tapped the stone table with his fingertips, waiting for the other party to say the core content.
"Mount Myōboku has inherited Senjutsu for thousands of years. He has seen too many talented ninjas, and he has also seen too many people who were completely petrified or even lost their lives because of Senjutsu's failure in training." Sage Fukasaku's tone was a little more serious, "The core of Senjutsu is There is an absolute balance between Natural Energy, spiritual energy, and physical energy, but this balance relies too much on the practitioner's physical sense, talent, and understanding. No matter how detailed we teach the formulas, mental methods, and precautions, someone will always have problems. Even our Mount Myōboku's Toad, every year there are young people who can't control the balance and turn into stones that can never wake up."
He raised his hand and pushed the thickest volume, with the cover sewn with Mount Myōboku's unique waterproof Toad leather, steadily in front of Rinto: "This is the complete result of Mount Myōboku's failure in all Senjutsu's cultivation in the past thousand years. The entire case record. From the initial sign of energy imbalance, to the entire process of petrification, mental erosion, and body disintegration, to the practitioner's physique, Chakra attributes, Kekkei Genkai characteristics, and even all the anatomy, analysis, and remedial attempts we made afterwards, they are all recorded in it."
Sage Fukasaku looked at the light that instantly lit up in Rinto's eyes and continued, "Jiraiya said during his lifetime that these things were locked in Mount Myōboku's archives. They are of no great use except to allow future generations to make the same mistakes again. Only when they are handed over to you can we truly understand the root causes of these failures, and maybe we can solve the problems that we have not solved for thousands of years."
Rinto's fingertips have already landed on the cover of the dossier.
The core of his previous research on Senjutsu was the practice notes left by Jiraiya, coupled with his several controlled trials and errors on Valley of the End, he established a basic integration However, whether it is the handbook or his own experiments, the core revolves around the "successful path". There are only a dozen or so scattered sets of failure data at most, which is not enough to support him to understand all the boundaries of the Senjutsu system.
In the field of scientific research, the value of failure cases is always much higher than success records.
This complete file of nearly a thousand years covers all possible types of imbalances, all extreme out-of-control scenarios, all the details of the failures of practitioners with different physiques, different Kekkei Genkai, and different Chakra attributes. There is even a complete record of the entire process of remedial failure. This is very important to him., is a priceless treasure that is more precious than any forbidden magic manuscript or any Kekkei Genkai sample - with these data, he can completely understand the underlying rules of the interaction between Natural Energy and human Chakra, instead of just staying at the superficial application of "stable fusion".
He did not open the file immediately, but looked up at Sage Fukasaku, and for the first time his tone was a little more serious than perfunctory. "Mount Myōboku takes out this core inheritance, what do you want?"
He never believed in free gifts. Konoha exchanged top-secret files for his defense configuration, the hospital exchanged difficult cases for his repair plan, and Mount Myōboku took out the millennium heritage that was kept under the box, and there must be corresponding demands.
"Our requirements are very simple, there are only two." Sage Fukasaku spoke quickly, fearing that Rinto would refuse, "First, if you develop a basic safety configuration from these cases that can lower Senjutsu's training threshold and avoid petrochemical risks, can you also leave a copy for Mount Myōboku? No matter whether it is for Senjutsu Our descendants, or the ninjas who come to Mount Myōboku in the future to seek enlightenment, are all very important. Secondly, following your research on Senjutsu, if there are new discoveries about the nature of Natural Energy, can you allow us to record it and add it to the Senjutsu inheritance of Mount Myōboku?"
These two requirements are almost humble in the eyes of any ninja in Shinobi World - using a thousand years of core inheritance in exchange for a basic configuration and the right to record research results. But for Rinto, this cost is almost zero. He studied Senjutsu was never meant to establish a sect or inherit the Daoism, but just to understand the underlying rules of Natural Energy. To him, the safe configuration he developed was just a set of verified formulas. If he shared it, he could also get a massive amount of training feedback data. It was a completely profitable business.
"Yes." Rinto agreed simply and neatly. He had already opened the cover of the dossier with his fingertips and added two unquestionable premises, "But there are two conditions. First, whether it is Mount Myōboku's Toad or the ninja who comes to practice in the future, using the optimized configuration, all training data The data, body changes, and adaptation must be recorded accurately and completely, and sent to me once a month. Second, I want the complete and unabridged version of all Mount Myōboku's inheritance records about the essence of Natural Energy, experimental files on unconventional Senjutsu applications, and the cultivation logs of past immortals."
"No problem! All is no problem!" Fukasaku Sennin was overjoyed and immediately pointed to the remaining dozen volumes, "We have brought all the ones you asked for! There are thousands of years of observation records of natural energy in Miaomu Mountain, different regions, different seasons, different weather and even different The changes in the natural energy concentration and activity differences of time, as well as the records of the celestial magic application experiments and unconventional fusion attempts of the Myoboku sages in the past generations, and even the entire data of Naruto from the first time he absorbed natural energy to the formation of the perfect sage mode were recorded word for word."
He was afraid that Rinto would be dissatisfied, so he added, "There are also Senjutsu's deduction notes that Jiraiya left behind in Mount Myōboku but did not bring with Amegakure, including all the pitfalls he stepped on during his training and all his ideas for Senjutsu's application. We also brought them with us."
Rinto glanced at the dozen volumes of files neatly stacked on the stone table, with growing interest. These materials directly transformed his Senjutsu research sample library from "dozens of scattered groups of actual "Empirical data" has been expanded to "a complete database spanning thousands of years, all scenarios, and all types." Corresponding references can be found in these files for many fuzzy areas, unverifiable conjectures, and even boundary attempts that he did not dare to go deep into in his previous theories.
He casually opened the thickest book of thousand-year failure cases, and his eyes fell on the record on the first page. This is the record of a man with Uchiha nearly eight hundred years ago. The complete file of Kekkei Genkai's ninja who came to Mount Myōboku to practice. From the very beginning, he was extremely talented and absorbed much faster than ordinary people. Later, Sharingan's Yin Release Chakra interfered with the energy balance. The whole process from balance, local petrification, to his forced breakthrough leading to the solidification of the whole body, and finally complete loss of vital signs, was recorded clearly, including the changes in the ratio of the three energies at each hour, the subtle reactions of the body, and the remedial measures taken by the Mount Myōboku Immortal.
This is what he lacked the most before - different attributes Chakra, different Kekkei Genkai, and the impact mechanism on the fusion of Natural Energy.
Sage Fukasaku looked at the way he was instantly immersed in it, and looked at the little Toad next to him, and immediately closed his mouth knowingly, and even breathed softly, for fear of disturbing him. They heard Naruto say repeatedly in Mount Myōboku that once Mr. Rinto starts research, he will not care if the sky falls, and saying another word will be a unnecessary interruption.
Rinto was flipping through the pages, using the charcoal pen in his hand to jot down several sets of key values on the draft paper he carried with him from time to time. Occasionally, he would mutter a formula or two in a low voice, completely forgetting that there were guests around him. His attention was completely captured by the cases in the file. Lived: Some are irreversibly petrified due to excessive physical energy and too high affinity with Natural Energy; some are mentally eroded by Natural Energy and become completely insane due to an imbalance of mental energy; some are fused with Kekkei Genkai Chakra, leading to the complete collapse of the entire energy system; there are even extreme cases of forced absorption of excessive amounts of Natural Energy, causing the body to directly collapse.
Each case corresponds to an energy imbalance model; each complete record helps him complete the underlying logic of the Senjutsu system.
It wasn't until the sun passed noon and nearly a third of the file was turned over that Rinto finally raised his head and looked at Sage Fukasaku, whose legs and feet were numb from waiting, but did not dare to move. He was completely unaware that more than three hours had passed, and all he asked were core details related to the case, without any greetings.
"It is recorded here that petrification is irreversible after three hours. Are there any exceptions? Is the core mechanism of petrification the solidification of the cell phospholipid bilayer by Natural Energy, or the destruction of the nodes of the Chakra cycle?"
"In the case of the Uzumaki Clan, the huge Yang Release Chakra actually accelerated the erosion of Natural Energy. Have Mount Myōboku conducted subsequent controlled experiments? Did Yang Release increase the body's energy threshold, causing the balance to go out of control, or did Yang Release itself amplify the cell affinity of Natural Energy?"
"There are also several cases of mind erosion. None of the casters were petrified, but their spirits were assimilated by Natural Energy. What is the underlying logic of this situation? Is there a complete record of successful reversal?"
His questions came one after another, each of which accurately hit the core and most difficult pain point of Senjutsu's cultivation, which is also the underlying contradiction that Mount Myōboku has not been able to fully understand for thousands of years. Sage Fukasaku could still start from the beginning. Rong answered, but the more he answered, the more frightened he became - Rinto only looked at the case for more than three hours, and they grasped the core of what they had been studying for generations and hundreds of years, and many of the questions raised were logics that they had only seen the phenomenon before, but had never delved into the root cause.
Sage Fukasaku told Rinto all the details he knew, all the experiences passed down by word of mouth, and all the experimental attempts that were not written in the files. He could clearly feel that Rinto never asked these questions for the better. The purpose of practicing Senjutsu is to completely dismantle "how Natural Energy interacts with the human body and Chakra." This idea of deconstructing the rules from the root has never been seen in Mount Myōboku for thousands of years.
By the time Rinto finished asking the last question, the sun had begun to set towards the west, stretching the shadows of the trees in the yard. Sage Fukasaku looked at the sky and knew it was time to return to Mount Myōboku - Naruto was still polishing Sage Mode at Mount Myōboku, and could not do without his guidance.
"Mr. Rinto, let's take our leave now." Sage Fukasaku jumped off the stone table and bowed seriously to Rinto, "We will go over the other information you asked for when we get back. If there is any omission, we will immediately Send it to you. If you have any subsequent needs, whether it's Toad Oil from Mount Myōboku, or you want to do experiments in the Natural Energy enrichment area of Mount Myōboku, just tell us and we will cooperate."
Rinto's eyes fell back on the file, and he just said "hmm" casually, and waved his hand to indicate that they could leave without even raising his head.
Sage Fukasaku didn't care, and quietly exited the courtyard with two little Toad, not forgetting to help him gently hold the courtyard door. After walking a long way, the little Toad who followed couldn't help but asked in a low voice, "Master Fukasaku, we have given away all the core files passed down by our ancestors, and we just exchange these two requirements. Isn't it really a loss?"
Sage Fukasaku shook his head, looked back at the closed courtyard door, and said with determination, "It's not a loss, not a loss at all. We have been guarding these cases for thousands of years, but we have not been able to solve the problems of Senjutsu cultivation Gate of Death threshold, but Mr. Rinto, maybe in just a few months, we can thoroughly understand these things that we don't understand. This is a rare opportunity in a thousand years for Mount Myōboku's Senjutsu inheritance."
In the courtyard, Rinto didn't care at all whether the guests had left. He carried all the dozens of files on the stone table into the laboratory and carefully placed them in the center of the experimental table. He even pushed aside the Second Hokage forbidden technique manuscripts and the Rinnegan sample data he had just received.
He reopened the book of thousand-year failure cases, and traced the yellowed writing on the paper with his fingertips, his eyes full of concentration. The Senjutsu fusion model he built before was just a basic framework that could operate stably, and these failure cases accumulated over thousands of years were the core support that turned this framework into steel, allowing him to thoroughly understand every risk point, every change possibility, and every underlying rule in the Senjutsu system.
He casually opened the bottom drawer of the experimental table, took out the Senjutsu notebook left by Jiraiya, with the small Toad painted on the cover, and placed it next to the thick case book. His fingertips brushed the cover of the notebook, and he was silent for two seconds without any unnecessary movement, and then gently pushed the drawer back.
Immediately, he picked up the charcoal pencil and laid out a new blank slate. The previous Senjutsu balance model was completely overturned and reconstructed in his mind. With the support of thousands of years of complete data, he was able to transform the fusion of Senjutsu Chakra from "physical to physical". It can even completely solve the petrochemical risks that Mount Myōboku has not been able to solve for thousands of years, and expand the application boundaries of Senjutsu to an extent that was previously unimaginable.
The setting sun outside the window slowly sank into the distant mountains, and the night gradually enveloped Konoha. The lights in the laboratory came on, and wrapped in layers of barriers, it became an isolated island.
The entire Shinobi World is panicking about the upcoming war. The ninjas of Konoha are working hard to improve the defense plan. Naruto is working hard in Mount Myōboku Sage Mode has been polished completely, and in the world of Rinto, only rows of case data on paper are left, and the most original rules that integrate Natural Energy and Chakra.