Konoha, was reported by the Fourth Hokage at the beginning

The life energy absorbed from the two women's bodies disappeared as if it was eaten by something in an instant.

But it was also at this moment that a trace of soul fluctuation suddenly occurred in the embryonic cells whose life energy returned to normal in the two women's bodies.

And it is different from the soul fluctuations of other embryonic cells.

At this moment, the soul fluctuations in the embryonic cells in the two women's bodies are very powerful and mature. They emit strong soul fluctuations the moment they appear.

Other women, including Shin Kuna and Uchiha Mikoto, were pregnant three times before. When the embryonic cells showed the first trace of soul fluctuations, the soul fluctuations were not only weak but also so pure that they could not be seen as soul fluctuations at all.

It must develop for a month before it can emit the same fluctuations as the soul.

But this time, the soul fluctuations caused by the pregnancy of Shinkuna and Uchiha Mikoto were very mature the moment they appeared, and they were real soul fluctuations.

"It turns out that these are Sasuke and Naruto, or the reincarnations of Indra and Asura."

Li Yao let go of the two women, with a look of surprise on his face, and he said, how could there be no difference at all between the reincarnations of Asura and Indra.

Sure enough, this time he found the secret of the birth of the soul!

"Haha, the soul is born from life energy!"

The corners of Li Yao's mouth rose crazily as he came to a conclusion.

Although he still couldn't see the process of soul birth just now, the large amount of life energy absorbed by the embryonic cells suddenly disappeared, but the soul fluctuation appeared at that moment.

The connection is already obvious.

Moreover... Li Yao should have thought of this principle a long time ago.

Scorpion's soul re-engraving array has long revealed that the soul can be transformed from life energy.

The soul engraving array integrates the life energy and spiritual energy in all cells of the body into one, forming a soul flame life form with life energy and spiritual energy.

It can be seen that life energy and soul can be transformed into each other.

"Scorpion, scorpion, you are really a terrible and neglected guy!!"

Li Yao couldn't help but sigh in his heart at this time.

After discovering that life energy can be converted into soul and can strengthen the soul, everyone understands that as long as life energy can be converted into soul energy and absorbed, the strength of the soul can be enhanced.

But how to convert life energy into soul energy, no one can do it.

Even the Immortal of Six Paths is like this.

Now Li Yao finally understood why Dudu, the Sage of Six Paths, had allowed the souls of his two sons to reincarnate in the ninja world for thousands of years.

Not for some fate a thousand years from now.

It’s not that he is reluctant to let his son’s soul die in this world.

It's entirely because the Six Paths Sage also discovered the secret that life energy can be converted into soul energy.

But he couldn't convert life energy into soul energy and then absorb it for himself.

Only when a woman is pregnant and the first soul wave is born, can the mystery of the transformation of life energy into soul energy appear.

But Li Yao believes that even he cannot sense how life energy is converted into soul energy now, and neither can the Immortal of Six Paths.

In terms of perception ability, Li Yao, whose consciousness is integrated into chakra, can only perceive power stronger than the Six Paths Sage at the same level of strength.

He couldn't sense it, and the Six Paths Immortal couldn't sense it either.

But obviously, the Immortal of Six Paths realized that because his two sons had strong souls, they would need a lot of life energy when reincarnated, and they could more clearly sense the disappearance of life energy and the appearance of soul fluctuations.

Therefore, for thousands of years, the Six Paths Sage has been reincarnating the souls of his two sons into the ninja world in order to find the secret of converting life energy into soul energy.

Li Yao even felt that the current Sage of Six Paths was sensing the conditions in the bodies of two women, Shinkuna and Uchiha Mikoto, through the souls of his two sons.

In fact, the Six Paths Immortal in this world has really been paying attention to the reincarnation process of his two sons' souls.

On the dim yellow clear water lake, the Immortal of Six Paths opened his eyes, showing a disappointed look.

"Did you fail again?"

The Six Paths Sage sighed, with a wave of confusion in his eyes. The thousand years have come, and the prophesied time for the Otsutsuki clan to come to the ninja world is within this hundred years, but his soul is not strong enough.

Although the souls absorbed by the pure land space for thousands of years have greatly improved his soul, it is not enough. He needs his soul to be stronger.

But within a hundred years, with the absorption capacity of the pure land space, his soul would not be strong enough to compete with those eyes of the stars.

The secret of converting life energy into soul energy is the only way to increase the strength of his soul in a short period of time.

Unfortunately, thousands of years have passed and the souls of the two sons have been reincarnated hundreds of times.

That's right, hundreds of reincarnations in a thousand years.

It shows that there have been at least hundreds of reincarnations, and the reincarnated souls of the two sons of Sage of Six Paths died before they were two years old.

How did you die?

Don't ask the Immortal of Six Paths.

Asking about all kinds of surprises.

It's a pity that even so, the Six Paths Immortal still hasn't found the secret of converting life energy into soul energy.

Something that even the Immortal of Six Paths couldn't do.

Li Yao had been struggling for two years, but he was helpless.

The Red Sand Scorpion did it a few years ago.

That's right.

The secret of converting life energy into soul energy is the Scorpion's soul engraving array.

"It's no wonder that when I first saw the mystery of the soul re-engraving circle, I had a murderous intention towards Scorpion and felt that Scorpion would be too dangerous in the future."

"My feeling is indeed right!"

Li Yao shook his head and thought.

call out!

Li Yao left. He went to the Sand Hidden Village Research Institute in person and secretly checked all the research on the soul re-engraving array in the mezzanine space.

"It seems that Xie didn't realize how powerful the soul re-engraving array is."

Li Yao looked over it, including Xie's research room, the research on the soul re-engraving array stopped at the moment when Xie transformed into soul flame life.

After that, Xion turned to study other puppet techniques.

Now, in order to increase the strength of the soul, his research direction is also on how to increase the strength of the soul flame by burning high-quality chakra.

So Scorpion is studying how to transform the absorbed natural energy into higher quality chakra by transforming the Puppet Heart Seal.

Xie didn't think about the soul carving circle transforming life energy into soul energy.

Li Yao can probably understand why Xie didn't think of improving the soul re-engraving array.

Because this magic circle is related to Scorpion's life and safety,

The only relevant research materials are Li Yaofeng's Escape Clone and Xie You.

Li Yaofeng's clone was trusted by Xie, but others were not trusted by Xie.

He was afraid that if someone learned the information about the soul re-engraving circle, he would find a way to restrain himself from killing him.

Therefore, in order not to expose his own weaknesses, Scorpion will not let others know about the soul-carving magic circle.

To continue to study the soul-re-engraving array, Scorpion would need human experiments, which would bring the risk of exposing the soul-re-engraving array.

Therefore, in order to keep the soul re-engraving array secret, Scorpion will not continue to study and improve it.

Secondly, Li Yao believed in Yixiao's pride in puppetry.

Scorpion must have felt that the soul re-engraving array was already perfect and there was no room for improvement, so he never thought of continuing to study the soul re-engraving array.