S-rank Ninjutsu

After leaving the Tsuchikage's Office, Ōnoki asked Yichen not to leave the village until the Spiral was fully developed.

Exhausted, Yichen returned to his cabin to rest for the night. The next day, after his Chakra and stamina had fully recovered, Yichen bought a batch of balloons and then trained according to Jiraiya's method from the original story.

Thanks to his powerful Chakra control, the whole process went much more smoothly than Yichen had imagined, and he basically didn't need to use any of the balloons he bought.

After only two or three trials, Yichen had mastered the Rasengan. However, the Rasengan consumed a great deal of chakra, so in order to conserve Chakra, Yichen only created a miniature Rasengan the size of a ping-pong ball.

Then Yichen wrote down his process of practicing the Rasengan, his understanding of the Rasengan, and even his conjecture about adding attributes to the Rasengan. Then Yichen took the scroll to see Ōnoki.

Ōnoki was reading various intelligence reports from the front lines when he was somewhat surprised to see Yichen enter. In Ōnoki's mind, Yichen should be fully engaged in developing Ninjutsu right now. He had already told Yichen that he could go directly to the Logistics Department to get anything he needed.

Yichen knew what Ōnoki was thinking and said lightly, "Lord Tsuchikage, I have successfully mastered it. This is the method for training the Rasengan." With that, Yichen handed the scroll he had just written to Ōnoki.

Ōnoki didn't immediately take the scroll, but stood there stunned for a while. "Are you kidding me? What happened to the promised A-rank Ninjutsu without hand seals? You've already mastered it so quickly? Do you think S-rank Ninjutsu is so easily fooled?"

Ōnoki had originally prepared to leave Yichen for a month or two.

However, trusting Yichen, Ōnoki still opened the scroll and read it carefully. After reading Yichen's explanation of Rasengan Rasengan's principles, Ōnoki finally understood why Yichen was able to master it so quickly.

"So the biggest difficulty in mastering this Rasengan lies in Chakra Control. Someone, go and notify a few advisors to come to my office."

Several Anbu responded and left.

Then Ōnoki looked at Yichen said, "Did you bring the balloon you described above?"

Yichen was taken aback for a moment, then said, "Yes." He then took out a large pile of scrolls, which were all leftovers from before.

"I originally thought it would take a long time, so I prepared a lot of balloons, but it turned out to be very easy, so I ended up with quite a few extra."

Ōnoki nodded, took a balloon, and began practicing the Rasengan in front of Yichen.

The first attempt failed, but Ōnoki succeeded on the second try. At that moment, the three consultants entered. Their offices were nearby, so they arrived quickly. The three of them were stunned when they saw Ōnoki's actions.

Upon seeing the three enter, Ōnoki said directly, "To the Training Ground." Without waiting for their reaction, he left the office first.

The three advisors reacted quickly and immediately understood what Ōnoki meant. However, they were all somewhat incredulous and turned to look at Yichen to confirm with him.

Yichen nodded and said, "The development was successful, and Lord Tsuchikage has also learned it."

With a hiss, the three of them took a deep breath and quickly caught up with Ōnoki, with Yichen following behind them.

Before long, Ōnoki, the three advisors, Yichen, and an Anbu Squad arrived at an empty Training Ground. Onoki seemed more anxious than the others. He walked to a boulder, stretched out his right hand, and immediately a Chakra sphere slightly smaller than a soccer ball formed.

Then, following Yichen's description of Minato Namikaze's fighting style, Ōnoki slammed the Chakra ball onto the boulder in front of him.

Boom!!!

The boulder immediately crumbled, sending small stones flying everywhere.

Everyone who witnessed this scene gasped in shock.

"It really is a no- Seal-less Ninjutsu, and it truly lives up to its A-rank power."

Ōnoki turned around and Yichen said, "Yichen, you've learned it too, why don't you give it a try?"

Yichen felt somewhat embarrassed and reluctantly Earth Flow another boulder, then extended his right hand.

Yichen slowly formed a miniature Chakra ball with his right hand, and then, to everyone's embarrassment, Yichen pressed it onto the boulder in front of him.

Boom!

The sound wasn't quiet, but its power was far less than what Ōnoki had just delivered.

Everyone secretly wondered if Yichen had demonstrated it earlier, would they still have classified this Ninjutsu as Rank A?

I doubt it!

Ōnoki and the others now understood Yichen's embarrassment; this kid had too little Chakra.

Not wanting Yichen to remain embarrassed, Ōnoki spoke up directly, "Alright, Yichen did a good job. Come with me to the Secret Vault to choose S-rank Ninjutsu later."

Yichen nodded, too embarrassed to speak, and was still blushing slightly.

Ōnoki handed the Rasengan Ninjutsu Scroll to his three advisors, instructing them to arrange for a suitable ninja to learn Ninjutsu. Then, he took Yichen to the Secret Vault.

This is Yichen's second time visiting this Secret Vault. The last time he came was to learn S-rank Sealing Jutsu. However, Sealing Jutsu are considered lower in status than Ninjutsu in the village, so last time when he was learning S-rank Sealing Jutsu, Yichen entered under the supervision of a Jonin.

This time, however, the Tsuchikage, Ōnoki, personally accompanied him to learn S-rank Ninjutsu.

Upon arriving at the Secret Vault, Ōnoki said, "The village doesn't have many S-rank Ninjutsu. Actually, with your Chakra reserves, it's too early for you to learn them now. However, your Chakra control, so it's good for you to get acquainted with them sooner rather than later."

With that, Ōnoki took out a huge scroll from the Secret Vault. After performing a series of complex hand seals with his back to Yichen, Ōnoki broke the seal on the scroll, then opened the scroll's catalog and Yichen said, "Take a look at the catalog and pick one that suits you."

Yichen glanced at the scroll's table of contents. "Hmm, quite a lot."

Indeed, there are quite a few. This scroll records over a hundred advanced Ninjutsu and Sealing Jutsu, including at least twenty S-rank Ninjutsu.

Ōnoki shook his head and said, "Although there are more than twenty S-rank Ninjutsu, you'll understand once you take a closer look."

Yichen looked over with a puzzled expression, then realized, "Oh, I see."

Many S-rank Sealing Jutsu have very specific training requirements. For example, Dust Release: World Splitter Jutsu and Dust Release: Limit Splitter Jutsu are both Ninjutsu that require mastery of the Dust Release Kekkei Genkai and are classified as S-rank. For Yichen, having them is practically the same as not having them.

Besides these two, there are two other S-rank Ninjutsu that also require Kekkei Genkai.

Besides these, there are some Ninjutsu that Yichen had previously speculated about, such as the Ultra-Light-Weight Rock Technique and the Ultra-Added-Weight Rock Technique. These two Ninjutsu are upgraded versions of the Light-Weight Rock Technique and the Added-Weight Rock Technique, and have also been listed as S-rank Ninjutsu.

As for the remaining S-rank Ninjutsu, Yichen doesn't meet most of the training requirements. For example, some Ninjutsu require a very large amount of Chakra, which is extremely difficult for Yichen to obtain. Yichen estimates that only members of the Uzumaki Clan might be able to meet the requirements.

For example, there is a Ninjutsu that requires the user to have a special affinity for Earth Release. This inexplicable condition is something that Yichen naturally cannot meet.

After much deliberation, Yichen realized that there really wasn't anything suitable for her at the moment.

I guess Ōnoki meant for me to learn the Ultra-Light-Weight Rock Technique. I don't know what the use of this Ninjutsu is, but it's an S-rank Ninjutsu, so I shouldn't be too disappointed.

In the original story, it seems that Ōnoki used the Ultra-Light-Weight Rock Technique to block Madara Uchiha together with Gaara.

However, Yichen did not follow Ōnoki's plan to choose the Ultra-Light-Weight Rock Technique, but instead chose another strange Ninjutsu.

The training requirement for this Ninjutsu is a special sensitivity to gravity, and Yichen barely meets this requirement because he has learned the Light-Weight Rock Technique.

This Ninjutsu has no name and a strange description: after using Ninjutsu, one can draw things from the surrounding area to their side.

Yichen thought for a moment, "Isn't this the Banshō Ten'in that comes with the Rinnegan?"

Yichen pointed to the Ninjutsu and asked Ōnoki, "Lord Tsuchikage, what is the origin of this Ninjutsu?"

Ōnoki shook his head and said, "I don't know either. My teacher died suddenly in battle, and he didn't tell me many secrets. All I know is that no one has ever learned this Ninjutsu."

As he spoke, Ōnoki glanced at Yichen and said, "I know what you're thinking. You mentioned last time that Nagato's Rinnegan has this kind of ability, right? After hearing your description, I also took some time to practice this Ninjutsu, but I have absolutely no clue how to do it."

After thinking for a moment, Yichen said, "Lord Tsuchikage, I'll choose this Ninjutsu."

Seeing Ōnoki's puzzled look, Yichen explained, "I have a good relationship with Nagato. He even gave me several Ninjutsu before, although they were only C-rank. I understand his intentions. I believe he wouldn't refuse if I asked to learn from him."

"But with Nagato's help, I think I still have a chance to learn this Ninjutsu."

Ōnoki thought for a moment and said, "Alright, this Ninjutsu is one of the less energy-consuming among the many S-rank Ninjutsu. If you can really learn it, it will indeed suit you."

After saying that, Ōnoki opened the scroll to the location of the Ninjutsu and then Hand Seals to release the seal on the Ninjutsu.

Yichen carefully read through the entire description of this Ninjutsu, and then spent several tens of minutes memorizing Ninjutsu.

After Yichen finished reciting, Ōnoki stepped forward, sealed the Ninjutsu again, closed the scroll, and then applied another seal to the entire scroll.

Then, as is customary, Sealing Jutsu was cast on Yichen 'Yichen head to prevent him from being obtained by the enemy after his death.

After leaving the Tsuchikage's Office Building, Yichen's emotions were somewhat turbulent, because the description of that S-rank Ninjutsu contained some details about a former user.

Based on the description of the user, Yichen made a bold guess: the source of this Gravity Ninjutsu, which doesn't even have a name, is very likely a certain Otsutsuki.

Even a certain Otsutsuki with the Rinnegan or Tenseigan. Because Yichen carefully recalled the huge Ninjutsu Scroll from earlier. The position of this Gravity Ninjutsu was rather strange, and the Ninjutsu before and after it were also quite unusual.

Its predecessor was the Gōriki Shiki no Jutsu, which could summon a giant Stone Golem. The next Ninjutsu was to condense Chakra into a giant sword and use it to kill enemies. The next Ninjutsu was actually a soul-related Ninjutsu.

The combination of these four Ninjutsu reminded Yichen of some hazy memories from his past life.

That is the power of the Tenseigan. In fact, the Tenseigan and Rinnegan have different forms of expression, but they have many things in common in essence.

However, after comparing the differences between the two, Yichen determined that this was the Tenseigan rather than the Rinnegan.