Naruto: The Age of Ninja Swords Begins in Kumogakure

After searching the Snow Country's Craftsman Village and Sky Village, Tamura Hao was not satisfied and rode his ninja hawk to the coastal area of ​​the River Country.

The Land of Rivers is the main battlefield between Konoha and Sunagakure. However, the two sides have already ceased hostilities and signed a peace treaty. Even though the Nine-Tails' attack has given Sunagakure some ideas, they can only hold back after Tsunade appears.

Furthermore, more than half a year had passed, and Sunagakure had long since given up on that idea, and the Land of Rivers had returned to peace.

"What are you looking for?"

On the back of the ninja hawk, Yuri asked in confusion.

This pervert has been wandering around here for several days, observing those deserted areas all day long, I don't know what he's looking for.

"There is a vague record in the Senju family's records that it is said that a powerful empire once existed in ancient times, possessing incredible technological power. I want to see if there are any remnants of that."

Tamura Hao casually replied and continued to sense, mainly using the Byakugan's X-ray vision to observe the underground.

After searching for several more days, they finally made a discovery.

It was a ruin, with the surrounding mountains having a unique, unnatural structure, like a huge palace. Now only some ruins remain, but the grandeur of the past can still be seen from the huge stone pillars and slabs.

Upon seeing these ruins, Tamura Hiroshi became excited and continued his search, focusing mainly on the rift valleys. He eventually found a relatively intact stone tower.

He activated his Byakugan's X-ray vision to look down, but unfortunately, he didn't see the Grell mine he was looking for.

"Is it because it was buried too deep?"

Tamura Hao seemed to be deep in thought. The mineral vein was underground, but it was unclear how deep it was buried. At this stage, it was obviously beyond the vision limit of this Byakugan.

The ability of the Byakugan to see through objects has its limits, and the more material it sees through, the stronger the obstruction becomes.

Just like this time, directly seeing through the thick earth naturally puts a lot of pressure on it, and the distance of the vision is also greatly reduced.

After circling around for a while, Tamura Hao leaped down from the Ninja Hawk and landed on the stone tower, with Ringo Ameyuri following behind.

The two entered through that entrance. With their ability to see through things, neither of them was afraid of any traps, so they soon reached the bottom level.

"It doesn't look like anything special."

Yuri was a little bored. There was no one around, and not even any traps or mechanisms, which made her, who loved adventure and excitement, feel quite uneasy.

I thought there might be some surprise in store.

Using his X-ray vision, Tamura Hiroshi quickly located the mechanism. After activating it, the location rapidly descended; it was an elevator.

"Is there any more below?"

Yuri was surprised and quickly jumped down to follow before the mechanism closed.

Using the elevator to descend rapidly, after descending an unknown number of meters, it finally stopped and arrived at an underground secret room.

After walking in and looking around, Tamura Hao once again activated the Byakugan's X-ray vision ability and instantly discovered the vast energy above. In the Byakugan's vision, it was a large area of ​​strong green light, and nothing else could be seen except for the green light.

"Let's go back."

After confirming the existence of the Grell mine, Tamura Hao decisively returned to the elevator and signaled Yuri, who was still curiously observing, to come back.

The Grell mine is very valuable, but it is too large to be carried away by ourselves; a super-large container is needed.

He already had a plan for this; his visit was simply to confirm whether the Grell mine truly existed.

Although Yuri was puzzled, she dared not disobey that perverted will, otherwise she would be bullied again.

I'm no longer a match for that freakish opponent.

Riding the Ninja Eagle back to Turtle Island, which was still adrift at sea, Tamura Hiroshi told Ringo Mari about his discovery of the Grell mine.

"It possesses energy far exceeding that of the Nine-Tails, and also boasts powerful vitality."

Ringo Mari found it hard to believe. She had witnessed the power of the Nine-Tails before. Even though she wasn't a sensory ninja, she could feel the terrifying amount of chakra, which seemed to be infinite.

But now this nephew-in-law claims to have discovered an energy source far exceeding that of the Nine-Tailed Fox, and that it possesses powerful vitality.

How could such a thing exist?

"That kind of energy must be hard to obtain."

It took her a while to calm down, and Ringo Jasmine guessed that the energy must be unstable.

After all, it is an energy body, not a mineral, and energy without consciousness is extremely dangerous.

"It's indeed not easy to get. I plan to use the island tortoise as a base to create a super-giant seal on its belly, and use it as a base to absorb and seal that energy inside."

Tamura Hao revealed his thoughts: he had been communicating with the island turtle during this time, and even shared his own chakra with it, allowing it to cultivate on its own.

This is a characteristic of one's own chakra, allowing one to distribute their chakra to ordinary people, just like the Sage of Six Paths, so that ordinary people can have chakra to cultivate.

Previously, experiments were conducted on some small animals, and now the island turtle has been endowed with chakra.

Moreover, the island turtle itself also has a meridian system, which is largely similar to that of humans, and can serve as the foundation for setting up sealing techniques.

With the island turtle's size comparable to the Ten-Tails, it could easily set up a rather extravagant seal.

"We'll do as you say and fully cooperate."

Ringo Jasmine readily agreed; in this respect, her niece's husband was the real expert.

"I need to brand the sealing technique inside the tortoise shell. My people need to carve out channels inside the shell to arrange the materials and the spell array."

Revealing his next plan, Tamura Hiroshi intends to arrange a magical array inside the island turtle's shell.

He had already devised the corresponding sealing technique, which was an extremely powerful sealing technique obtained from the Thousand Hands Wooden Tower.

That sealing technique has no other special feature except that it can be expanded infinitely. As long as the carrier is large enough, an infinitely large seal can be set up, opening up a sufficiently large space.

Theoretically speaking, as long as the array can cover the entire planet, sealing and packaging the Ninja World planet wouldn't be a problem.

Of course, that would require a massive amount of resources, especially chakra metal.

Fortunately, they had gathered a lot of resources beforehand, so creating a shell that covered the bottom of the island tortoise was not a problem.

Another requirement is the need for a large amount of chakra to activate it, which can be achieved using the island turtle.

The island turtle was enormous, and one can only imagine the chakra extracted from such a massive creature. To Tamura Hao, it was no less powerful than that of the Nine-Tails.

Of course, the quantity and quality of chakra are far inferior to those of the Nine-Tails, but it is enough to activate sealing techniques.

After agreeing on the plan, the Ringo ninjas, under the command of Tamura Hiroshi, drilled holes inside the bottom shell of the island turtle according to the sealing array blueprints.

The island tortoise's shell is so thick that even the relatively thinner bottom shell is over ten meters thick. It's not a big deal for it to carve out tunnels one meter in diameter inside, and the tortoise itself doesn't even feel it.

Meanwhile, Tamura Hao rode the island turtle south first, then made a large circle, bypassing the islands of the Land of Water and the Land of Rainbows and the Land of Tea, and finally entered the bay between the Land of Tea and the Land of Wind, arriving at the coast of the Land of Rivers.

The island tortoises are not fast; it took them more than three months to swim this long route.

Meanwhile, the seal was set up over the past three months. Under Tamura Hao's guidance, the island turtle refined chakra and injected it into the seal, activating each component and creating a super-giant sealing space.

After a final check, Tamura Hao activated the device he obtained from the Sky Ninja Village, lifting the giant island turtle off the sea surface. It flew all the way and finally landed directly above the stone tower ruins, with the center of the island turtle's shell facing downwards.

"You guys up here, quickly open up a passage in this ancient tower that connects to that passage, and lower the guide chain down. I'll go down here to make the arrangements."

Tamura Hiroshi said something and prepared to jump down. Yuri, who was beside him, was about to follow, but was stopped by being slapped.

"You pervert!"

Being slapped in public like that drove Yuri crazy, and she glared hatefully at the guy who jumped down.

"That kind of enormous energy is very dangerous, and the patriarch doesn't want you to take the risk."

Ringo Jasmine tapped her niece's forehead, knowing that her nephew-in-law didn't want the girl to take any risks.

"Move out quickly and start at the location just marked by the patriarch. Everyone else, spread out to scout the surroundings. Kill anyone who gets close. If any powerful enemy appears, immediately send out a signal."

Without delay, Ringo Jasmine ordered her people to get moving.

A group of people went to the ancient pagoda to carry out demolition and drilling. In order to minimize the risk of accidents, they had to make a very large hole.

Having fully recovered from his injuries, Ringo Iwato and his nine companions led a patrol around the area to prevent others from getting close.

Although the island turtle's barrier has the effect of invisibility, it still prevents people from getting too close, and the commotion that is about to happen will inevitably attract some people.

Precautions must be taken seriously; anyone who dares to approach must be killed, and the news must not be leaked.

Leaving aside the actions of the Ringo ninjas above, Tamura Hiroshi, who had returned to the underground, began studying the control device.

Although the technologies are different, the general principles are still understandable.

He doesn't demand control, just that the Grell mine doesn't go berserk and explode.

As for guiding Grell's energy, he decided to use a sealing technique to direct it.

After studying it for a while, and using his Byakugan's X-ray vision to disconnect the control device from the Grell energy above, Tamura Hao took out a lot of materials and set them up.

After the setup was complete, a thick chain hung down from the elevator shaft, inscribed with numerous spells, specially crafted to draw Grell's energy up.

After all, this place is too far from the ground, and the island tortoise is too big to get down, so it can only be hauled down.

Tamura Hao connected the sealing chains to the sealing array he had set up, activated it with chakra, and guided Grell's energy slowly along the chains, eventually reaching the island turtle's belly. The sealing array imprinted on the turtle's shell absorbed the energy and transferred it into the sealing space for storage.

At the same time, there are complex sealing techniques to transform and regulate Grell's energy, turning it into a more stable form.

Seeing the stability of the conduction, Tamura Hiroshi below slowly increased the efficiency of the spell array, gradually increasing the conduction speed of Grell energy. When the bottom line of the Grell ore vein's eruption was reached, the absorption and conduction were reduced by one level.

This efficiency is still not high; it is estimated that it will take at least a month to completely extract all the energy from the Grell mine.

But their advantage lies in safety and stability, and they have plenty of time.

The Land of Rivers itself is free of war, and neither Konoha nor Sunagakure is currently focused on the other, so there are no ninjas from either village within a radius of several hundred kilometers.

However, there was an unexpected turn of events; not long after the operation, they caught someone they expected.

"This old man also knows the secret here. He sneaked closer to peek, and there's this little thing too."

Ringo Mari brought up Tamura Hiroshi, who had been guarding the sealing array downstairs, and pointed to the old man she had captured and a ferret.

The old man was dazed, clearly having been injected with drugs and interrogated. However, judging from Ringo Mari's appearance, she didn't seem to have obtained much information, perhaps because the other party's will was quite firm.

After sizing up the old man, Tamura Hao raised his hand and formed a hand seal to cast an illusion spell to hypnotize him, guiding the man to reveal everything he knew.

He doesn't need the Sharingan to deal with ordinary people; his own genjutsu is enough to hypnotize them.

"Has this little thing lived for countless years?"

After hearing the old man's words, which were spoken under the illusionary hypnosis, Ringo Mari and Yuri looked at the ferret in surprise. Tamura Hiro also looked over curiously, and then dissected it.

Examine it with various devices to uncover the secret of its immortality.

This was the empire's last research on Grell energy, which had initially reached the level of immortality.

Hyde gained immortality through Grell's energy; even a broken cervical vertebra could be turned around and heal itself, and the recovery of broken limbs was child's play.

This ferret is not immortal, but it has achieved longevity, making it even more valuable for research.

As for the old man, he was naturally killed. If the other party hadn't come, Tamura Hao wouldn't have paid any attention to him, since the other party didn't know much. But since he came looking for death, he might as well send him on his way.

He didn't have much interest in the Book of Grell. Judging from the effects shown by Hyde and others, it was just so-so and not worth the effort and time to search for.

He planned to use Yang Release to guide and utilize the energy of the Grell mine.

The chakra system has now been developed to a very high level, and its limits are even higher.

Thus, Tamura Hao studied, cultivated, and oversaw the operation of the sealing array and the stability of the Grell mine for nearly two months before finally absorbing, transforming, and sealing the entire Grell mine into the island turtle's body.

The island tortoise's body seemed to be very compatible with Grell's energy, actively absorbing the small amount of energy that had escaped, causing it to grow much larger and still growing.

This extremely high compatibility made Tamura Hao wonder if this behemoth was related to Grell energy, or perhaps it was also an experimental product of that empire.

Otherwise, a sea turtle could never grow to such a huge size.

After sealing Grell's energy, Tamura Hao decisively activated the device, allowing the island turtle to take off and return to the sea, swimming away.

The Ringo ninjas all returned and cleaned up all traces.

The following days were relatively peaceful. Tamura Hao continued his own cultivation and research, and with the help of Grell energy, everyone's cultivation speed greatly accelerated.

After all, the two main elements of chakra are mental strength and physical strength, and physical strength is to some extent a kind of life force. Now that there is a sufficient replenishment of life force, the refinement of chakra will naturally be greatly improved.

At the same time, life energy can better assist in physical cultivation and enhance physical strength.

Then came the research. Tamura Hao transplanted the Hashirama cells, which had been sealed away by the Second Hokage, into the corpse of Kaguya, the clan leader. Guided by Grell energy and chakra cores, he finally separated the gray power of the Shikotsumyaku (Corpse Bone Pulse).

That is the root of the Shikotsumyaku bloodline disease, which can enhance the destructive power of Shikotsumyaku, but it is also a double-edged sword. It will continuously damage Kaguya's body, so it can be said that it hurts the enemy a thousand times but also hurts oneself eight hundred times.

Tamura Hao speculated that the power of the Shikotsumyaku (Corpse Bone Pulse) was related to Kaguya-hime's All-Killing Ash Bones, which should be the ultimate evolution limit of the Shikotsumyaku.

Just as the Rinnegan is the ultimate evolution of the Sharingan, the Shikotsumyaku also has an evolutionary, or rather, a path of reversion, and it is in no way inferior to the Sharingan.

However, the side effects of this thing are too strong. The bloodline characteristics of Kaguya ninja alone cannot withstand it. If one had the enormous life force of a Sage Body like that of the Senju clan, it should be able to counteract and neutralize it.

With the breakthrough in Kaguya's research on her body, Tamura Hao also made a breakthrough in his research on the Corpse Bone Vein itself. With the added support of the energy from the Grell Mine, he finally created a monster that could infinitely split and create Corpse Bone Vein skeletons, which he named Bone Demon.

It was created based on the corpse of the Kaguya clan chief, incorporating the skeletons of the three giant toads from back then, creating a mindless monster that could break down the bones it swallowed into basic nutrients, and then use cell division to create a high-strength bone vein.

Tamura Hao also used life energy to revitalize the remains of the Third Kazekage, and combined it with the half-finished Oni-Garuru technique obtained from Konoha to create a high-strength iron alloy skeleton.

Although its overall performance is somewhat inferior to that of titanium alloy skeletons, it has the advantage of readily available raw materials, allowing for mass production.

This is the best material for shaping the Turtle Island base, and it can be directly shaped using the power of the Corpse Bone Vein.

"Unfortunately, it's not perfect yet."

Looking at the thirty-meter-long bone demon, Tamura Hao felt a pang of regret.

This thing combines the secret techniques of Oni-Garaku, sealing techniques, and ninja tool manufacturing technology, and finally forms this creation that specializes in producing various alloy bone materials.

But it's not perfect yet; it's still missing two foundational elements.

"What's missing?"

Ringo Mari was examining a piece of newly produced steel alloy bone material with a puzzled expression. In her opinion, this bone material was already perfect, and the bone demon far exceeded her expectations.

This alloy bone material can now be mass-produced, and the next step is large-scale construction. Once Turtle Island, this sea fortress, is established, they will have the strength to rival any major ninja village.

"Sage Mode and Steel Release Bloodline Limit!"

"Sage techniques allow bone demons and the bone cells they create to absorb natural energy, while Steel Release Bloodline Limit allows the alloy to further fuse with the bone cells, becoming perfect."

Tamura Hao's vision for the Bone Demon included Sage Mode and Steel Release Bloodline Limit. Steel Release Bloodline Limit could perfectly fuse with alloy components, making it more suitable than Magnet Release.

The magic of immortality goes without saying; it can comprehensively enhance cell activity and strength.

Although the remains and chakra cores of Gamabunta and the other two were previously integrated into the Bone Demon's body, the Bone Demon still did not gain Sage Mode power, or rather, lacked the means to activate it.

He already has a target in this regard, but finding it is somewhat difficult, especially during this time of war, though it is only a matter of time for him.

As for the Steel Release bloodline limit, he can only wait for the right opportunity in Iwagakure.

There happened to be a powerful figure in Iwagakure who had mastered Steel Release to the Kage level, known as the Steel Warrior. He was on par with the Explosion Release Hunter of the Explosion Squad. Their bloodline limits were one offensive and one defensive, and they often coordinated their attacks on the battlefield.

(End of this chapter)