Naruto: I've already fought against all five Kage, and the system only just arrived.

Just like Yu Yi Xuan Yue now.

If it weren't for the fact that the Impure World Body itself has a time limit, he would definitely be a bug in the ninja world.

The two major hurdles of resurrection, body and soul, have now been overcome.

The final issue then falls on integration.

If Yu Yi Xuan Yue's soul returns to his body, without any surprises, he will absolutely be the first ghost fire boy in the ninja world to escape death under extreme strain.

However, all of this is predicated on the soul being able to return to the body.

Yu Yi Xuan Yue examined her impure body.

Everything has two sides.

While the Impure World Reincarnation technique summons souls from the underworld to return, it also severely restricts the souls themselves.

Despite the fact that Madara Uchiha, Hashirama Senju, and Itachi Uchiha all broke free from the Edo Tensei technique, it's clear they were all free.

However, they cannot free their souls from the impure body and achieve true freedom.

Those reanimated ninjas who were either sealed away or broke free during the Fourth Shinobi World War all met the same fate: their souls were swallowed up by the underworld the moment they left their bodies.

According to Yu Yi Xuan Yue's analysis, the Impure World Reincarnation technique's ability to rescue people from the underworld can essentially be seen as signing a contract with the underworld.

Regardless of what loopholes Senju Tobirama and Orochimaru, these two unscrupulous merchants, exploited, seemingly offering many benefits in the contract while actually setting many traps, thus achieving their own costless rental agreement.

However, once the lease agreement is signed, the fundamental principle of returning the loan must still be upheld.

Otherwise, this business wouldn't be able to continue.

Yu Yi Xuan Yue was certain that the moment her soul broke free from her impure body, it would be blocked by the Impure Earth Reincarnation Technique and the Underworld.

The latter, in particular.

As the only home for the souls of the dead, the underworld will only face greater obstacles.

Unless you undergo a complete reincarnation and solve the problem at its root.

But we should still give it a try.

To be on the safe side, Yu Yi Xuan Yue did not immediately undo the forbidden technique, Eternal Sleep Breath, but instead first attempted to separate her soul from her body.

After all, if you succeed, that's fine, but if you fail, your body's vitality will continue to drain away until it disappears completely.

Given his current situation, it is impossible for him to use the forbidden technique, Eternal Sleep, which would cost him his life, again.

After looking around and finding nothing unusual, Yu Yi Xuan Yue left her real body in a sealed state and solemnly formed hand seals with her hands under the impure body, beginning her attempt.

"Soul, leave body!"

With a flick of her eyes, Yu Yi Xuan Yue's own soul within the Impure World Reincarnation Technique easily broke free from its restraints.

next second.

A beam of white light emerged from the top of his impure body.

Visibly, the soul of Yu Yixuanyue, who maintained a phantom human form, gradually drifted out.

In her soul form, Yu Yi Xuan Yue was about to look at the original body that held such great attraction for her.

An incredibly powerful force of attraction suddenly descended, completely enveloping his soul.

Yu Yixuanyue's expression changed, and she looked up.

From a perspective visible only to the soul, a pitch-black rift opened from above, and the deathly aura of the underworld emanated from within.

It was as if that was their true home.

If Yu Yi Xuan Yue hadn't forcibly controlled himself, his soul would have already flown there on its own.

But this is not enough.

Seeing that the soul did not return on its own, the guiding force from the underworld suddenly intensified.

Moreover, the more of Yu Yi Xuan Yue's soul leaves her impure body, the weaker her resistance to the underworld becomes.

After several unsuccessful attempts, Yu Yi Xuan Yue decisively stopped and shrunk all her souls back into her body.

After the presence of the soul could no longer be sensed, the rift from the underworld disappeared.

"Things are more complicated than I thought."

As Yu Yi Xuan Yue regained her senses and control over the Impure World Body, she frowned and said.

Under the Impure World Reincarnation technique, if the soul resides in the impure world body, then everything will be peaceful.

In a sense, the impure body is a barrier that allows the soul to operate in the mortal world.

But if a soul wishes to leave this barrier, it will attract the attention of the underworld, which will guide it back to the world that truly belongs to it.

From this perspective, it's true that it's not so easy to find a loophole in death.

(End of this chapter)

Chapter 26: The surname "Kato" is still fresh in my memory.

The underworld has a natural suppressive effect on the souls of the dead.

Even someone as powerful as Yu Yi Xuan Yue could not withstand the descending power of the underworld.

If I hadn't been cautious and hadn't failed to completely detach my soul from my impure body during my first attempt, I wouldn't be standing here so easily now.

"In a semi-detached state, I can barely maintain my balance when facing the pull of the underworld. If my soul were to completely leave my body, I would be unable to move an inch. Let alone merge with my real body, I would probably be pulled up by the force of the underworld as soon as I tried to take a step."

Yu Yi Xuan Yue stroked her chin, looked up at the clear, cloudless sky, and pondered.

We must find a way to resist the pull of the underworld, or strengthen the soul itself.

"soul."

Yu Yixuanyue frowned deeply.

There are countless ninjutsu techniques in the world, but very few secret techniques concerning the soul.

There's nothing we can do; the soul is just too mysterious.

He devoted most of his energy to chakra analysis during his lifetime, and always took a very cautious approach to matters of the soul.

He can't be like Orochimaru, who doesn't take others seriously, much less himself.

To have one's soul shattered into countless pieces and still survive is simply incredible luck.

Yu Yi Xuan Yue's research on the soul is not deep.

He tried out the few soul techniques he had mastered during his lifetime, but none of them were very effective.

Looking up at the rift to the underworld above once more, Yu Yi Xuan Yue's soul skillfully returned to her impure body, and she shook her head, saying:

"It still doesn't work. The resistance from the underworld is too unfair; the boundary between life and death isn't so easy to break."

The Rinnegan was able to succeed because of its extremely high quality.

Just like the Ten-Tails and Kaguya Otsutsuki, these extraterrestrial beings.

As the strongest asset of the Ōtsutsuki clan, the overlords of the universe, the Rinnegan's wonders extend far beyond resurrection.

"Unfortunately, I am not the reincarnation of Ashura or Indra's chakra. Even if I obtained their flesh and blood, I would not be able to evolve the Rinnegan."

Apart from the Otsutsuki clan, whose bloodline is pure.

In the entire ninja world, only those who are the reincarnations of Indra's chakra can awaken the Rinnegan by transplanting the body or cells of those who are the reincarnations of Ashura's chakra.

It's impossible for a child born from the union of an Uchiha and a Senju, or for an Uchiha to have Hashirama's cells transplanted, to develop the Rinnegan. At most, they could only develop the power of Wood Release, like Obito.

The Rinnegan is too far off; let's put it aside for now.

After several attempts, it got dark and the temperature dropped by about ten degrees compared to the daytime.

Yu Yi Xuan Yue sat cross-legged without paying any attention.

The impure body has no sense of temperature, no sense of pain, does not get tired, does not need to eat, and does not need to relieve itself.

Not being distracted by trivial matters allows me to wholeheartedly consider the problems I encounter.

"Let's put chakra research aside for now and devote all our energy to research on the soul?"

Yu Yi Xuan Yue thought for a moment and rejected the suggestion.

Let's not even talk about whether the research will be successful.

Even if it succeeds, it will take a lot of time and effort.

What I lack most right now is time.

Although the impure body wouldn't dissipate in ten days or half a month, the remaining time wouldn't be enough to support the development of research results on the soul.

It's worth noting that Orochimaru, the most powerful scientist in the ninja world today, spent at least ten years developing the Reanimation Jutsu.

Although Yu Yi Xuan Yue is highly talented, she dares not guarantee that she can spend less time.

If I were truly that powerful, I would have already completed the research on the Bloodline Limit and become invincible, instead of needing to rack my brains here.

In the current situation, we can't get through this on our own. We have no choice but to rely on external help.

Yu Yi Xuan Yue never looked down on others.

Although he was called a man comparable to the gods, he was ultimately just a human being, and his life was limited.

Compared to themselves, it's perfectly normal for the ninja world, which has accumulated over a thousand years, to have a more suitable method.

Yu Yi Xuan Yue began to think seriously.

As I had thought, what I needed most right now was a special soul technique that could ignore distance and allow me to arrive instantly.

Once one's soul reaches one's true body and merges perfectly with it, it's as if the soul resides in the impure body, and the underworld can no longer do anything to it.

"Does the ninja world possess such a soul-binding secret technique?"

Yu Yi Xuan Yue carefully recalled memories buried for many years.

suddenly!

A vivid image of pure white blood and passion flashed through his mind.

If I had to describe it in one word, it would be "great tolerance."