Naruto: The Strongest Suiton User

Chapter 9: New Ninjutsu (Part 3)

Lord Hokage's involvement was a game-changer; he immediately found a way to solve the problem.

The prototype of the ninjutsu had appeared, but there were still many detailed issues to address, such as determining the most cost-effective amount of water, increasing the water's viscosity to prevent it from scattering, adding fine sand to enhance cutting power, and how to create a suitable nozzle. These were the keys to turning a ninjutsu into a practical combat tool. In terms of sheer attack power, this prototype could already demonstrate the true might of a water jet cutter.

The principle of this jutsu originated from the high-pressure water-cutting technology used in industry in her previous life. In industry, when water is pressurized to over 400 megapascals and passed through a small opening with a diameter of only 0.05 millimeters, it can cut various soft materials. When a small amount of abrasive, like garnet sand, is mixed into the water jet, the resulting abrasive water jet can cut virtually any hard material, including metal, composites, stone, and glass.

So, Sakura's new jutsu was essentially a recreation of an industrial water cutter using chakra, though it wasn't for cutting steel, but for killing enemies.

Its principle was simple—though no one could understand how Sakura had thought of it—and its origin was the Second Hokage's Water Severing Wave, making it a Konoha ninjutsu with a clean and respectable lineage.

The reason for emphasizing this was because Sakura also knew of the Rasengan. Given her knowledge of the detailed practice materials and her level of chakra control, she could probably master that jutsu in half a day. Yet, Sakura had never done so.

Ninjutsu is a vital matter for a ninja's survival and is extremely sensitive. Suddenly possessing a ninjutsu of unknown origin is like a government official in her previous life having a huge amount of unexplained assets—it's something that cannot be brought out into the open. In serious cases, you might even be suspected of being a spy.

Sakura didn't like doing things sneakily, and she certainly didn't want to be unable to explain where she had learned the Fourth Hokage's signature jutsu after being discovered. Even if she claimed to have developed it herself, she would have to wait until her own talent was widely recognized before that excuse would be viable. In any case, Konoha was currently in a period of peace. There was no need for Sakura to risk being put on a surveillance blacklist to practice this jutsu. Even if she learned it, she would have no place to use it. By the time she needed to fight, her own ninjutsu system would have already begun to take shape, and at that point, she wouldn't need a jutsu that didn't fit her style.

Evening, at the Hokage's private training ground.

This was a place specially provided for the busy Hokages to practice ninjutsu and maintain their Kage-level strength. It was secluded, secure, and fully equipped, often containing a lot of data on the Hokages' jutsu. Only a few trusted Anbu were qualified to enter and exit.

Age does not grant strength to the bones. In recent years, the Third Hokage had come here less and less. Yet today, after finishing his official duties, the Third Hokage came here at the first opportunity.

Though his steps were still calm and his expression still placid, the Third Hokage's heart was anticipating something. Walking onto the field, Lord Hokage once again opened the scroll Sakura had submitted about her new ninjutsu, confirming its contents one last time. Then, he slowly formed the hand seals. The seals he used were far more complex than the ones Sakura had used today, taking nearly ten seconds to complete the jutsu.

A basketball-sized sphere of water emerged in front of him and then shrank by a full circle under the immense pressure created by his chakra. The Third Hokage continued to channel his chakra to increase the water pressure, but the water sphere no longer shrank, as if it had already reached its compression limit.

The Third Hokage watched silently, recalling the description on the scroll. According to Sakura, the water pressure was now in the hundreds, or even a thousand, megapascals. Next, he opened a small hole in the water sphere. With only a sharp but soft "swoosh," a whitish line of water shot out, piercing through a target set up dozens of meters away without any suspense. The water line passed through the target's body as if it were just a thin sheet of paper, completely unaffected, and continued straight for another hundred meters before dispersing into a white mist.

The Third Hokage manipulated the water sphere to rotate slightly. The water line swayed with it, cutting a ten-centimeter-thick hardwood target in half as if it were tofu. As a bonus, it cleanly sliced a kunai nailed to the target in two. The cut was as smooth as a mirror!

The Third Hokage continued his experiment. Earth Style defensive ninjutsu like Earth Style: Mud Wall, Earth Style: Mud-Walled Fortress, and Earth Style: Earthen Return were almost instantly broken before the new jutsu. Twenty to thirty centimeters of stone wall offered no protection at all. Only after being thickened to one meter did it barely slow the water jet's advance. A ten-centimeter-thick high-strength steel plate was also easily pierced. Only a steel plate over thirty centimeters thick had any protective meaning—not because the water jet couldn't cut it, but because the time it took for the jet to cut through was enough for a person standing behind the plate to dodge it.

Without a doubt, this was an S-rank ninjutsu.

The training ground was a mess, littered with the wreckage of various wooden and steel targets, as well as earth walls and stones. Their remains had one thing in common: a neat and smooth cut surface, as if silently accusing the perpetrator of cruelty and ferocity.

He stopped the jutsu and remained silent for a long time. The air itself seemed to freeze in the heavy atmosphere. The Third Hokage suddenly opened Sakura's scroll again. His gaze was not on the scroll but looked towards the distance, as if seeing the far-off future.

The development of events was somewhat unexpected for Sakura.

The next day, an Anbu suddenly delivered a secret order from the Hokage to Sakura, requiring her to properly store and keep the new jutsu's information confidential, and not to display the new jutsu in public unless necessary. At the same time, it was stated that if she needed any help in perfecting this ninjutsu, she could also request it, and the village would do its best to satisfy her. Finally, the Hokage wanted to record it in the village's ninjutsu archives and hoped to get Sakura's consent.

It took Sakura a while to react. It was clear that Lord Hokage had issued this gag order only after confirming the new jutsu's power. Given the Third's reputation, if he said he would do his best to satisfy her, he definitely meant it. However, the straightforward Sakura said she wanted to complete this jutsu herself and didn't need help for the time being. As for the request to enter it into the Konoha archives, if she didn't agree, Sakura estimated she wouldn't be able to get by in Konoha anymore. Besides, the scroll had already been submitted, and the most difficult problem had been solved. Even if she didn't agree, it wouldn't be difficult for the village to develop one themselves.

Sakura wasn't very sensitive to political matters and couldn't guess what was happening at the higher levels.

In short, by relying on a powerful jutsu to enter the field of vision of the higher-ups, she might be coveted, or it might be an opportunity. However, with Lord Hokage looking out for her from above, and given Konoha's current environment, they wouldn't go so far as to persecute a Konoha ninja with a clean and respectable background. Sakura didn't need to worry too much.

The successful development of this new jutsu meant that Sakura would have a powerful offensive ninjutsu before graduation, which was an important indicator on the path to becoming Kage-level. It was said that Namikaze Minato could slaughter other Jonin like chickens with just a few kunai and the Flying Raijin Jutsu, but he had some trouble against those with strong, hard defenses. That's why he developed the Rasengan, which had first-class offensive power, and it was for this reason that he was officially recognized as a Kage-level powerhouse.

However, the development of another jutsu had encountered a huge bottleneck.

In Sakura's vision, this second jutsu would be the foundation of her future, from which a series of extended Water Style jutsu could be developed. It was the core of Sakura's future Water Style. It was no exaggeration to say that once it was completed, the power of Sakura's Suiton could be enhanced by a hundred times.

The key to everything lay in a concept that, even in her previous life, was merely a theoretical idea on paper.

Ultrapure water.

Few people know what water becomes after it is purified to the extreme. Water has surface tension, which allows water striders to move on its surface. If this water were purified to the extreme, its surface tension could allow a Boeing 747 to use the water's surface as an airport. To bend a finger-thick steel bar requires 9,000 Newtons of force, but a column of ultrapure water of the same thickness would require nearly 10 million Newtons of force, a thousand times the compressive strength of steel!

It sounds incredible, but calculations showed that it was real.

Although no such ultrapure water had appeared on Earth by the time Sakura transmigrated, it might be possible to prepare it in the Naruto world with the help of chakra and ninjutsu. At that time, Sakura couldn't help but think, if she used ultrapure water to form a defensive ninjutsu, just a thin layer forming a water shield, then things like Chibaku Tensei, Susanoo (both were invincible jutsu her roommate used to boast about in her past life), or other physical-level ninjutsu, could all go to hell!

Just thinking about it for a moment was incredibly exciting. In Sakura's mind, such a vision had already been automatically supplemented—

If I use ultrapure water to condense a water clone, it would be the strongest, most physically damaging clone jutsu in history. Chakra itself can drive enormous power, it's just that the chakra carriers like water clones, earth clones, and even the chakra-entity shadow clones are too loose to use it. But my ultrapure water clone could unleash 100% of this power without collapsing, and as long as there is ultrapure water, the chakra consumption is no different from an ordinary water clone! The consumption of a C-rank jutsu, capable of producing the power of a jutsu beyond S-rank!

For another example, if I use ultrapure water to form a rope to bind someone, even if you transform into the Ten-Tails, you might not be able to break free!

What kind of power is that! If such a jutsu could be completed, even if Uchiha Madara and Senju Hashirama came at me together, I could dominate them!