In Huo Xiao's impression, the horned foreign woman was able to control the chakra of the entire ninja world after she suddenly became powerful.

All the chakra is under the control of Kaguya Otsutsuki.

In that era, the so-called three holy places could only use natural energy. The size of toads and snakes was very limited, and everyone carefully hid in their respective nests to avoid being discovered by the Otsutsuki.

The three families, including the slugs, were all masters of the way of survival, and all of the tribes that were discovered by the Ōtsutsuki died.

Kaguya Ōtsutsuki's methods are extremely violent, as she will treat any tribes she finds and their nests as a single target and destroy everything directly, rather than hunting down the enemies one by one.

In that most dangerous era, the three things that impressed Huoshen most about Kaguya Ōtsutsuki were: her despairing strength, her chilling cruelty, and her irresistible chakra penetration.

Needless to say, their strength was self-evident. So many immortal tribes and so many sects of gods were beaten to pieces by Kaguya Otsutsuki and almost all of them were wiped out.

Kaguya's coldness also left a deep impression on Huoshou, a coldness that contained no malice at all.

When Kaguya Ōtsutsuki discovered the immortal tribe or gods, it was like a farmer discovering weeds growing in the field. She just cleared them away as a matter of course and casually.

No farmer would harbor ill will toward weeds in his fields, as weeds are completely harmless, so there is no need.

Fortunately, Kaguya was like a not very hardworking woman and did not clean up in time, which is why the remnants of the three holy places were left.

But powerful strength and cold cruelty combined are not as frightening to the living slug as the omnipresent chakra.

No one knew at first that the chakra was spread by Kaguya Ōtsutsuki and that the ownership belonged to her.

Unlike those who later mastered chakra first and then absorbed natural energy, the immortals who mastered natural energy could safely generate powerful immortal chakra as long as they came into contact with chakra.

For many immortal tribes, chakra, which can enhance strength without any cost or difficulty, is an irresistible temptation. They actively absorb chakra, trying to fight against Kaguya Otsutsuki with their surging strength.

And then, nothing happened to them.

Because all the chakra belongs to Kaguya, the traces of the sages who master the senjutsu chakra are completely exposed, and once they stand in front of Kaguya, they will be controlled because of the chakra in their bodies.

Not to mention resisting, these immortals couldn't even escape. They directly became Kaguya's puppets and were made into the first and strongest group of White Zetsu.

After knowing the dangers of chakra, the immortals began to find ways to stop chakra.

But the characteristics of chakra are too overbearing, and its penetration power is extremely terrifying. Air, fire, water, wind, animals, plants, everything can become a carrier of chakra.

The immortals cannot completely isolate themselves from the world, so no matter how hard they try, they cannot prevent the infiltration of chakra.

If Kaguya Ōtsutsuki had not suddenly given birth to two sons, dispersing the control of chakra, Myōboku-san, Ryuchi-do, and the Wet Bone Forest would not have been the final survivors.

The penetration of chakra brought great despair to the slug, so when she realized that Uchiha You added his own aura to the natural energy and established a third-level control, she felt a huge shock and uncontrollable fear.

Back then, the living slug was able to successfully evade Kaguya Otsutsuki's search because it was cautious and careful enough, and it rejected convenient and powerful chakra.

But natural energy is the basis of the living slug's power. If Uchiha You seizes control of natural energy, just like Otsutsuki Kaguya mastered chakra, how should she deal with the threat of Uchiha You?

The slug may be simple-minded, but she has lived for thousands of years after all and knows that no ally can be trusted.

She couldn't help but consider the threat posed by Uchiha Yu.

But that will be a matter for a long time in the future, so there is no need to worry about it now. It is more important to obtain knowledge of the way of immortals from the other party.

Soon, the living slug and Tsunade communicated with each other and summoned another messenger slug to continue the unfinished conversation.

Uchiha You saw the death of the messenger slug and of course knew how shocked the living slug was. He immediately guessed that what scared the living slug was his own way of controlling natural energy.

But Uchiha Yu couldn't guess why the slug was scared.

However, he did not care about these details and continued to explain the special nature of his immortal path as if nothing had happened.

"Purify and purify your own natural energy, separate the natural energy from the chakra, and perfect your own little world."

Huoshen asked in surprise: "My own little world?"

Uchiha You nodded and said, "Yes, in my opinion, the ninja world is a big world, but my body is also a small world of its own."

"Of course this small world is not perfect. Not only does it have gaps that cannot be ignored, but it also has various defects, big and small. This is normal, because we are just a part of the big world of the ninja world, and we are not meant to be perfect."

"Just like the cells and bacteria in our body, they must obey the overall system of our organism and try their best to perform their own unique functions. There should be no perfect cells."

"If perfect independent cells really appear in the body, it can only mean that there is something wrong with the human body. Either it has a fatal cancer, or... it is pregnant."

The two immortals, Huoxiao and Miwa Masayo, were listening with great interest, but they could hardly understand the last metaphor.

The little loli complained: "What cells, what pregnancy, You, what are you talking about? I don't understand."

The slug couldn't understand it. She was a unique life form that could divide and merge at will. The cells in her body were of course unique as well.

Slug: "The cells in my body? They are all the same. They can all independently..."

On the contrary, Tsunade, who was confused about the immortal part, understood the description of this part of the human body, and then she was amused by the questions of the two immortals.

Seeing the confused Hoverfly and Miwa Masayo, as well as Tsunade who was laughing so hard, Uchiha Yu knew that he had used the wrong metaphor.

He shook his head and laughed at himself, then continued nonchalantly, "In short, my philosophy is: if you follow the rules, you will become a human being, if you go against the rules, you will become an immortal."

"The goal of spiritual practice is to repair these defects in ourselves, control all gaps in external communication, make up for our own deficiencies, and completely perfect our own little world."

"When one's own small world is close to perfection, it will become independent from the greater world of the ninja world. At this point, I believe one has become an immortal."

The messenger slug's eyes are blind and look gray, but the live slug's excitement makes these blind eyes look sparkling.

Living Snail: "Uchiha Yuu-dai Sennin, may I ask if you have become independent from the ninja world?"

Uchiha You nodded: "Yes, I have become independent from the ninja world."

Miwa Masayo raised his right hand and boasted with a smile: "I have also made a breakthrough, meow, but it will take some time for me to be completely independent meow."

Tsunade and the slug exclaimed heartily together: "Sage Miwa Masayo is truly amazing."

The praise from each person and each slug was very sincere. The little black girl with long straight hair was very satisfied with her competitive spirit and smiled triumphantly.

Huoxiao carefully observed Sanlun Yashi and confirmed that the natural energy she controlled was far inferior to his own. However, her vibrant state and the active level of natural energy also proved that her life level was steadily improving.

Even though the living slug had lived for thousands of years and was still extremely calm in the face of life and death, he couldn't help but feel envious at this moment.

Huohu couldn't help but ask, "Uchiha Yuu-daishen, is independence the key to you and Miwa Masayo's life essence advancement?"

Uchiha You nodded: "The Great Sage of the Living Slug is right. Independence is the key to Miwa Masayo and I being able to complete our life level upgrade with less power."

"In fact, the advancement of life does not require so much energy, because we are part of the ninja world. When we advance, we not only have to support our own growth, but also have to break the limitations of the world itself. That's why it seems so difficult."

Tsunade asked: "According to what you mean, if it is an independent life from the beginning, it will be easier to complete the life promotion?"

"Of course not." Uchiha You denied without hesitation: "Before life grows to a certain height, it is like an embryo in the mother's womb. It does not have the ability to survive and grow independently. Being independent from the beginning is like miscarriage. Death is the only result."

“Life’s independence from the world is like the world giving birth to a fetus. This involves a life-and-death crisis, great fortune, and great opportunity, and must be done at the right time.”

The living slug continued to ask: "Uchiha Yuu Daisen, according to your way of achieving independence from the ninja world, what level of the chakra system is equivalent to?"

Uchiha You did not hide it: "After becoming completely independent, the upper and lower limits of a Sage are very large, and the lower limit is equivalent to the level of the Six Paths Sage before his death."

"And the upper limit is equivalent to the bloodline network, which is the state before Kaguya Ōtsutsuki was sealed. The current Six Paths Sage is also at this level."

Tsunade was surprised to hear the names of the Six Paths Sage and Kaguya Ōtsutsuki, but the living slug was shocked to lose contact again, and the messenger slug suffocated to death once again, turning into a pool of slime.

After some trouble, Tsunade summoned the third messenger slug.

After the connection was restored, Huoshen immediately took out the Psychic Contract Scroll: "Sage Uchiha Yudai, I think we need to establish a more direct connection."

Tsunade suddenly became jealous: "Sister Slug, are you going to get rid of me and contact Uchiha Yu alone?"

The slug explained, "Tsunade-chan, this is necessary."

"As you can see, the messenger slugs are very fragile and can easily collapse and die. This third one is my last messenger slug. If anything happens to it, I won't be able to contact Uchiha Yuu Dai Sennin for a short period of time."

Tsunade said indignantly, "How can we not be able to contact you? Even without the messenger slug, I can summon you directly."

"You know, I'm very powerful now. I can channel you who is as big as a mountain!"

Huohu, Uchiha Yu and Miwa Masayo all laughed, and their laughter made Tsunade even angrier, but she didn't dare to get angry at the three great sages, and her face turned red.

The relationship between Huoshao and Tsunade became closer, and he quickly explained: "Don't be angry, Tsunade, you have also seen my body, and although the clone you can summon is already very large, it is still not able to carry my main consciousness."

"It is very important to discuss this with Uchiha Yuu Daisenjin. My clone cannot bear the memory and thinking ability required."

Uchiha Yuu and Miwa Masayo nodded. As they were also great immortals, they understood the meaning of the living snake's words through personal experience.

As their strength grows, the immortals' perception, insights, and accumulated knowledge increase dramatically, and thinking and remembering become a huge burden on the body.

In order to ease this burden, they all chose to increase their thinking "capacity".

Because of its own life characteristics and the problem of too much accumulated natural energy, the slug chose to proliferate its body infinitely and eventually grew into a real mountain.

Uchiha You chose to digest and control natural energy, and weave corresponding thinking and memory structures into it, which served as the extension of his brain and his channel to communicate with the world.

Miwa Masayo chose to take two paths in parallel. In addition to learning from Uchiha Yu to digest natural energy for her own use, she also used the tiger lady form and the colorful tiger form as the carriers of her own memory and thinking in a way that was compatible with her demon body.

Making the carriers of memory and thought "bigger" is a problem that all great immortals have to face.

Tsunade, who had no personal experience, could not understand the reason for the explanation given by the Slug, but she was still calmed by the Slug's sweet voice.

Through the attitude of the Great Sage Kage, Tsunade completely understood one thing: Uchiha Yu and Miwa Masayo's strength and status were extremely high, far beyond her own expectations.

After calming Tsunade down, Huoshen handed the summoning contract scroll to Uchiha You, but Uchiha You refused.

He explained to the living snail, "I have already signed a psychic contract with Miwa Masayo of the Cat Castle, and I don't want to add any more psychic contracts."

Uchiha You and Miwa Masayo smiled at each other, then continued: "In fact, after Tsunade-senpai used summoning in front of me, I knew the location of the Wet Bone Forest."

"For me, knowing the location means I can go to the Wet Bone Forest at any time, and I can meet the Living Slug Immortal without the medium of spiritualism."

Huoshou was quite envious of the relationship between Miwa Masayo and Uchiha Yuu, but was even more surprised at Uchiha Yuu's abilities.

Through other people's spiritual communication, one can grasp the location of the target of spiritual communication and go there at any time. What an exaggerated spatial ability this is.

Such spatial ability is definitely not something that can be achieved by ninjutsu, nor by the fairy arts of the holy land, and even Kaguya Otsutsuki cannot do it.

Because the spatial ability is so strong, so strong that the once mysterious holy land is no longer mysterious, and the biggest factor in protecting the safety of the immortal community is completely lost.

If Kaguya Ōtsutsuki had this ability back then, Myōboku-san and Ryuchi-do would definitely not have survived until the era when the Six Paths Sage spread chakra.

Huoxiao believed that Uchiha Yu had just mastered this exaggerated spatial ability, otherwise after the destruction of Ryuchi Cave, Myoboku Mountain would never have been able to survive peacefully for so long.

But from the moment Uchiha Yu mastered such powerful spatial abilities, the destruction of Myoboku Mountain was already doomed.

As long as the toads dare to contact the outside world, including responding to the summoning contract, their location will soon be exposed to Uchiha Yu.

Then, Myobokusan will be completely destroyed like Ryuchi Cave.

The living slug also knew that if it weren't for his parallel self's reminder, he would not have communicated in time to show that he and Gama Orochi were not the same, and the Wet Bone Forest might have been destroyed earlier than Mount Myoboku.

Living Snail thankfully put away the contract and asked again, "Uchiha Yuu-da, you used giving birth to a baby as a metaphor for independence, but as far as I know, a baby cannot survive on its own."

"If your analogy is correct, does it mean that there is still a way for the immortals to follow after independence?"

Uchiha You's eyes narrowed, and after hesitating for a while, he confirmed: "Yes."

"I used childbirth as a metaphor for the immortal's independence from the world. It was indeed inspired by my feelings. The strength of the newly independent immortal is too weak to leave the ninja world and face the harsh environment of the big world alone. It can't be considered completely independent."

"So after becoming independent sages, we still need to reorganize our communication with the greater ninja world, reintegrate into the ninja world, reintegrate into the world as an independent being, and become part of the world again."

"The reintegration process is not a return to the mother's womb, but an upgraded integration, similar to the process of infant development, growth, maturity and integration into society."

"In this process, the immortal seeks to obtain not only natural energy and chakra, but also to establish a solid relationship with the rules of the world."

"After this process of independence and reintegration, when the immortal becomes part of the world again, it will show characteristics of both integration and independence."

"At this time, the immortals who have maintained their strong independence and are closely connected with the ninja world can use the power of the entire world according to their own will."

"As for the ultimate goal, it is to build a brand new 'world' with myself as the core, master powerful forces and be completely independent."

Uchiha You thought for a moment and made a metaphor: "The second integration is like a baby growing up and integrating into human society, while the second independence is like humans establishing a huge military organization, splitting the land and establishing a new independent country."

The living slug was fascinated by what he heard, and the messenger slug nodded repeatedly involuntarily. He had a clear understanding of the future path of the immortal.

Of course, Uchiha You did not tell me the specific methods, such as how to achieve the first independence, how to integrate into the society for the second time, and how to realize the second independence. Huo Xie had no idea at all.

She knew very well that Uchiha You would never tell her until she contributed to the destruction of Myoboku Mountain and thoroughly proved her sincerity and position.

Huoshen's heart was burning with anger, and for the first time in thousands of years, he felt impatient.

She said to Uchiha You: "Master Uchiha You, if you find Myoboku Mountain, please inform me as soon as possible."

"I will prove to you that I am worthy of your trust."

Uchiha You nodded with satisfaction: "No problem, I will do it as soon as possible."