From the night of genocide, marching towards the strongest.

Sasuke knew that the reason why the Toyoashi Plain space-time eye technique, representing the living, was still in its infancy and had not yet blossomed was because the Yang Release energy absorbed by the Ten-Tails was not enough to bring this life-representing alternate dimension eye technique into existence.

The Yellow Springs was already formed, and after absorbing the Yin Release power of dozens of Sharingan and one Mangekyou Sharingan, its spatial size has more than doubled!

Sasuke still had two options in front of him.

The first thing is to wait, to wait for the little ten-tailed beast to digest and transform the Sharingan chakra it gave it, because the little ten-tailed beast is a yin-yang unity composed of a meteorite (yin) and a tree branch of a god (yang), just like a yin-yang tai chi diagram that rotates endlessly.

Following the principle of Yin giving rise to Yang and Yang giving rise to Yin, and the waxing and waning of Yin and Yang, when either Yin or Yang energy in the body becomes too saturated, a mysterious transformation occurs, turning Yin into Yang and Yang into Yin.

Once the Ten-Tails has converted its excess Yin Release chakra, Sasuke can feed it more Sharingan.

Of course, the same problem remains: it's too slow!

Sasuke can't wait that long.

The second option is to feed the Ten-Tails more First Hokage cells with strong vitality, but Sasuke only has so many First Hokage cells, and the feeding just now consumed eight or nine tenths of them. Sasuke simply cannot produce any more First Hokage cells.

Furthermore, Sasuke estimated that even if all the remaining resources of the Sound Village were used to cultivate the First Hokage's cells, it might allow the Ten-Tails to develop the eye technique Toyoashihara.

Of course, Sasuke would never do that, since the resources of the Sound Village are currently used partly to maintain normal operations, partly to provide research, and partly to provide nutrition for the Otsutsuki embryo.

If he were to use all of it to cultivate the First Hokage's cells, all of Sasuke's other endeavors would be instantly interrupted, which would be a huge loss.

"Sigh, I'm still poor."

Sasuke sighed softly. He had only been in Orochimaru's estate for a little over six months, and he had already squandered almost all of the vast resources that Orochimaru had painstakingly accumulated over the past ten years.

So where should I go to find enough Yang Release chakra?

Sasuke's gaze turned serious as he thought to himself.

White Zetsu?

Thinking of this, Sasuke shook his head. He knew that freeloading was something that should only happen once or twice.

Moreover, he loathed the frustration of being able to fight but not kill Nagato and Obito, and he was prepared to strike them down the next time he encountered members of the Akatsuki.

Therefore, he must have the strength to deal with the Akatsuki completely overturning the table, to deal with Edo Tensei Madara, and even to prepare for the resurrected Uchiha Madara.

"Let's focus on improving the Ghost Sprout Technique these days."

Sasuke pondered for a while, but when he couldn't think of anything related to Yang Release, he gave up for the time being and decided to first study and improve the Oni-Garra Technique.

This allows it to fuse with divine artifacts.

Although in the battle in the Land of Rivers half a month ago, Sasuke temporarily fused with the Death Scythe and the Flame Fan, two sacred weapons passed down through generations of the Uchiha clan, through his bloodline, turning them into the spiritual weapons of his Susanoo.

However, Sasuke later broke the fusion because the state of merging with the soul was not the fusion he had envisioned. The Wind Release was not a product of his Uchiha Yin Release bloodline, but rather a product of the Uzumaki Yang Release bloodline. Merging with the soul was not as compatible as merging with the body.

Furthermore, in addition to Wind Release chakra, the Death Scythe and Flame Fan also possess extremely high-quality Yang Release energy. If he chooses to integrate them into his soul, most of the Yang Release energy will be converted into Yin Release power, with only a small portion of the Yang Release energy merging into his physical body.

Sasuke knew this when Futsu-no-Mitama became his spiritual weapon.

If Sasuke were to choose to integrate both into his body, his Yang Release would receive a significant boost. For Sasuke, who is currently in a state of Yin dominance and Yang deficiency, every bit of Yang Release energy gained would be invaluable. The faster Yang Release catches up with Yin Release, the shorter the time it will take for him to awaken the Rinnegan!

'The power of my Sharingan between my eyebrows has increased considerably. After fusing the Death Scythe and the Flame Fan, even without joining forces with the Sage Clones possessed by the three great Orochimaru Queens, I should be on the same level as Nagato, who was possessed by White Zetsu and had refined a significant amount of Grell's energy! If I were to join forces with the Sage Clones, even if Madara Uchiha were to return using Edo Tensei, I would have no fear!'

Sasuke's eyes flashed as he took out the Kira Scroll and began to study it.

............

Just as Sasuke was studying how to improve Kira, a loud laugh, seemingly suppressed for a long time, rang out from Ryuchi Cave.

"Hahahaha! I've mastered Sage Mode! I've surpassed Lord Orochimaru!"

Are all the people from the Sound Village this neurotic?

Princess Ichikishima looked at the silver-haired, bespectacled man laughing maniacally in the thick fog and spoke expressionlessly.

"Who knows?"

Tsurugi shrugged, covered her mouth and giggled, "This guy was able to learn Sage Mode and enter Sage Mode in such a short time. Although he can't compare to young master Sasuke, he is still a rare genius."

Shortly after the battle at Takachiho Gorge, Kabuto Yakushi arrived at Ryuchi Cave and learned Ryuchi Cave Sage Arts under their tutelage.

After learning the magic arts, they discovered that this seemingly ordinary guy was actually a genius in magic arts.

His speed in successfully entering the immortal mode through cultivation ranks among the top five in the entire history of Ryuchi Cave.

"Now that this guy has learned immortal techniques, we can get rid of him. I need to hurry up and absorb the energy from the Grell mine."

Mt. Miaomu.

"Aaaaaah! Magic is so hard!"

Once again, Naruto was brought out of his petrified state by Fukasaku's magic weapon, the Dog-Beating Stick, and he grabbed his hair and yelled in utter frustration.

"Calm down and try again!"

With a loud thud, Fukasaku struck Naruto on the head with his dog-beating stick and scolded him:

"Sage Shima, does Naruto lack the talent to master Sage Mode?"

In the distance, Jiraiya, arms crossed, watched this scene with a solemn expression and spoke to Shima Sage beside him.

Shima the Hermit shook his head:

"Jiraiya, quite the opposite. Naruto is a genius of Sage Mode, one in a million. People who don't have the talent to practice Sage Mode can't sense any natural energy at all. But Naruto sensed natural energy on his very first day of practicing Sage Mode at Mount Myōboku and even absorbed it into his body."

"Then why?"

Upon hearing this, Jiraiya frowned. He had already considered Naruto a genius in Sage Mode when he saw Naruto absorb natural energy on the very first day.

Although Naruto quickly turned to stone after absorbing natural energy, Jiraiya didn't mind. After all, it was his first time practicing Sage Mode, and failure was understandable.

Unexpectedly, half a month passed, and Naruto was still stuck at this step, without making any progress.

Shima sighed, "Because Naruto's yin and yang are out of balance!"

"An imbalance of Yin and Yang?"

"Hmm!" Shima Sage nodded and explained, "Naruto was originally from the Uzumaki clan, and his body has powerful Yang Release chakra energy. In addition, he has been diligently training in taijutsu over the years, which has greatly tapped into his body's potential. Now, the difference between Yin and Yang Release in his body is too great. After absorbing natural energy, it is difficult for him to maintain the balance of the three energies."

This was a case of Sasuke's cleverness backfiring. Ashura was originally a Sage Mode genius in the history of the ninja world, second only to the Sage of Six Paths. As the reincarnation of Ashura, each generation of Ashura possessed extraordinary Sage Mode talent.

Naruto was the same; in the original timeline, he learned Sage Mode in less than half a month and entered Sage Mode.

However, Naruto in this timeline has greatly enhanced his Yang Release due to five years of taijutsu training. He has also avoided the events of Jiraiya's death and Pain's attack in the original timeline, and his mind and spirit have begun to transform, with his spiritual energy increasing significantly.

With the Yin-Yang Release severely imbalanced, even Naruto, as the reincarnation of Ashura, was unable to enter Sage Mode.

"Do you have any suggestions, Master Shima?"

"I don't have any good suggestions."

Shima shook his head: "Aside from finding a way to help Naruto enhance his spiritual energy and shorten the gap between Yin-Yang Release techniques, there's no other way."

Enhance mental energy.

Maintain the balance of Yin and Yang.

Upon hearing this, Jiraiya frowned deeply, a sense of unease settling in his heart.

He knew that if Naruto didn't learn Sage Mode here, he would definitely intensify his training in taijutsu when he returned.

If nothing unexpected happens, the gap between Naruto's Yin-Yang Release abilities will only widen, making it even more impossible for him to learn Sage Mode.

"Master Shima, isn't there a way to solve this problem in a short time?"

"Yes, it is possible, but very difficult to achieve. That is, it is possible to rely on external forces. If there were a divine artifact containing powerful Yin Release to enhance Naruto's Yin Release, or a divine artifact containing both Yin and Yang powers to regulate the Yin-Yang balance within Naruto's body, this problem could be solved, but..."

Shima Sage sighed: "How difficult it is to find attribute artifacts! There are only so many weapons with the five elemental attributes in the thousand-year history of the ninja world, let alone divine artifacts, especially the Yin-Yang Release artifact which is above the five elemental attributes."

"As far as I know, the only Yin Release artifact is the Box of Bliss that caused chaos in the ninja world a few hundred years ago. However, as you know, the Box of Bliss was destroyed a while ago. As for Yin-Yang Release artifacts, I think the only one is the Sage's Staff in the hands of the Sage of Six Paths, which the Great Toad Sage mentioned to me."

The Sage of Six Paths...

The Immortal's Staff...

Upon hearing this, Jiraiya fell silent.

Jiraiya made Naruto train in Sage Mode because he couldn't bear to see the boy repeatedly damage his body.

During this period, Naruto's training in taijutsu almost reached a point of madness, repeatedly opening the Eight Gates in an attempt to break through the limitations of the Seventh Gate.

It's fortunate that Naruto is from the Uzumaki clan; otherwise, if an ordinary person had played like that, they would have died countless times already.

After a long silence, Jiraiya looked at Naruto in the distance and said in a deep voice, "Let Naruto continue training for a while. Even if he can't enter Sage Mode, it will be good for him to calm down. Right now, he's too impatient."

............

Late that night, the Great Toad Sage, as usual, was lost in his dream, examining matters concerning the future of the ninja world and the Child of Prophecy.

Then, in the hazy dream, a figure slowly appeared.

Upon seeing this figure, the Great Toad Immortal's old eyes first flashed with doubt, then suddenly sharpened.

"Feather Robe?"

The visitor was none other than the Six Paths Immortal.

"It is I, the Toad Sage."

The Sage of Six Paths nodded, and with a wave of his hand, a jet-black sage's staff, shaped like the sun and moon at both ends and exuding boundless divine power, appeared in his palm.

"Immortal, I have come here to ask you for a favor. Please give it to Asura."

Today, after meeting Sasuke, the reincarnation of Indra, in just half a day, the Sage of Six Paths couldn't wait to give his favorite youngest son a power-up!

Good heavens, good heavens, I'm just speechless!

If Sasuke saw this scene, he would definitely exclaim, "Wow!" Earlier, when Sasuke asked the Sage of Six Paths for things, he didn't get anything and was just brushed off.

In the blink of an eye, the Sage of Six Paths approached the Great Toad Sage, and his first offering was the most precious Sage's Staff, a symbol of the authority of the Ninja Sect.

"Should we hand it over to Naruto?"

As a close friend of the Sage of Six Paths and possessing the ability to foresee the future, the Great Toad Sage naturally knew that Naruto was the reincarnation of Ashura in this generation.

The Great Toad Sage wasn't surprised that the Sage of Six Paths had once again intervened to give Ashura a free kill.

This kind of thing happened countless times during the millennia-long battle between Indra and Asura.

The only thing that surprised the Great Toad Sage was that the Sage of Six Paths actually presented him with a Sage's Staff this time.

It should be noted that the Sage's Staff has only been given away once in the past thousand years, and that was when Ashura succeeded as the Ninja Sect Master.

The Great Toad Sage remembered the last time he met the Sage of Six Paths, when he heard him say that he would treat the two of them equally and resolve their grudges during this thousand-year period. What's going on now?