Analyzing the Ninja World Starting from Konoha

Chapter 130 The Four Symbols Seal and Minato's Invitation

The next morning.

Aoba changed into a clean ninja outfit, slung his signature yellow sand gourd over his shoulder, and headed towards the Hokage Building.

That's right, he came to exchange for ninjutsu.

He wouldn't hesitate to use the compensation given by the third generation.

Upon arriving at the Hokage Building, Aoba took out the special scroll bearing the Hokage's autograph and handed it to the ANBU ninja at the entrance.

The verification process is extremely rigorous.

They checked identity tags, ninja numbers, and chakra fluctuations, and even used a sensory ninja to perform a full-body scan to confirm that no genjutsu or transformation techniques had been applied before finally letting them pass.

"plz follow me."

A ninja wearing a cat-face mask led Aoba through several iron gates with sealing barriers, down a stone staircase, and past at least four iron gates with sealing techniques.

Each time a door opened, a faint chakra fluctuation would appear in the air, clearly indicating that they were all sensory-type warning barriers.

Finally, they arrived at a library located deep underground in the Hokage Building.

The room was small, with towering bookshelves all around, neatly displaying all kinds of ninjutsu scrolls, and the air was filled with the unique smell of old paper.

Two flames suddenly ignited, and on the stone platform in the very center of the room, a huge scroll was prominently displayed.

The Book of Seals.

The ground beneath the stone platform was covered with densely packed sealing runes, with pale blue light slowly flowing within the patterns. The entire setup exuded a solemn and dignified atmosphere, as if proclaiming to all who entered that this place held Konoha's most core secrets.

To be honest, if Qingye hadn't known the details beforehand, he would have been really intimidated by this display of force.

He knew that what he was looking at was fake.

Because he knew that the real Book of Seals was in the Hokage's house.

To clarify, the Hokage's family mentioned here is not the Hiruzen family of the Sarutobi clan.

As the highest leader of the village, the Hokage has a dedicated residence.

The Book of Seals is located in the Hokage's residence, where many forbidden technique scrolls and confidential documents of Konoha Village are kept and guarded by successive Hokage.

The forbidden room that Orochimaru later sneaked into when he stole the Impure World Reincarnation and Eight-Headed Serpent Technique was the Hokage's residence.

This information was known only to the highest-ranking members of Konoha.

As for this library in front of us?

To put it bluntly, it's a entrapment scheme.

It did contain some ninjutsu, but they were all unimportant; there wasn't a single truly valuable item. The purpose, of course, was simply to lure those with ill intentions into its trap.

Aoba understood immediately; a loyalty test, indeed, this was the right way.

Although Sarutobi Shinnosuke dug his own grave, he is still the son of the Hokage. Will Aoba let his emotions get involved with the Hokage, or will he harbor resentment towards the village?

Jonin are the elite backbone of the village, belonging to the highest level of ninja. They have access to the village's core secrets, especially since Aoba has just been targeted, so testing and screening him is necessary.

It must be said that this design is quite ingenious.

"This is the catalog of secret techniques; you can choose one from it."

A member of the secret service handed over a small scroll, his voice devoid of any emotion.

Aoba took the scroll, unrolled it, and quickly scanned it.

Just as he expected, many things were missing from the catalog.

The forbidden techniques developed by the Second Hokage, such as the Impure World Reincarnation, the Mutual Explosion Tags, and the Uzumaki clan's Reaper Death Seal, were not even mentioned, nor were the First Hokage's Wood Release ninjutsu.

However, to Aoba's slight surprise, the catalog actually contained the [Flying Thunder God Technique].

Aoba's heart skipped a beat.

The pinnacle of space-time ninjutsu, the divine technique that made Minato Namikaze famous, the signature move of the Yellow Flash.

Once you learn this, you can basically roam freely in the ninja world, fighting whenever you want and running away whenever you want. It's an absolute life-saving technique.

But the thought only lingered in Aoba's mind for less than three seconds before he ruthlessly extinguished it.

Is Flying Thunder God Technique strong? Absolutely strong.

However, the learning threshold is also outrageously high.

This technique requires not only extremely high spatial and temporal talent, but also a very profound foundation in sealing techniques. Minato was able to master the Flying Thunder God Technique not only because of his own talent, but also because he had a girlfriend who was proficient in sealing techniques assisting him.

Although Minato never explicitly stated it, Aoba could deduce that it took Minato a very long time to master the Flying Thunder God Technique.

With the aid of a chip, Aoba has top-notch analytical capabilities and is confident that given time, even the Flying Thunder God technique wouldn't be a problem. However, what he lacks most right now is time.

War waits for no one; what he needs is something that can be converted into actual combat power in a short period of time.

Aoba's gaze swept across the catalog, finally settling on a name.

"I choose this one, [Four Symbols Seal]."

Aoba pointed to the name on the scroll and said to the Anbu.

The member of the secret service was clearly taken aback for a moment.

Are you sure?

The ANBU ninja cautiously confirmed.

"Sure."

Qingye spoke calmly.

Without saying anything more, the Dark Division walked to the wall to the side, formed a hand seal to unlock the seal of a hidden compartment, took out a scroll from it, and handed it to Aoba.

"You have only three hours to memorize the above formula. You cannot take it away or copy it."

After speaking, the officer withdrew into the shadows, his figure disappearing into the darkness.

Aoba took the scroll, walked to the table next to him, and unrolled it.

"Chip, activate full-power scan, and establish a database of the Four Symbols Sealing Technique."

[Command confirmed, scanning and data entry in progress —]

A dense array of sealing techniques came into view, with complex runes interwoven like a spider web; even an ordinary ninja would get a headache just by looking at them.

But for Aoba, these things, with the help of the chip, were as simple as scanning documents.

The chip operates at full power, accurately recording every rune, every line, and every node into the database, while automatically cross-referencing and integrating it with Qingye's previous knowledge of sealing techniques.

It doesn't take three hours at all.

The chip scan was completed in less than five minutes, but Aoba still spent nearly an hour grinding it before putting away the reel.

After placing the scroll on the table, Aoba walked straight toward the only exit.

It wasn't until Aoba left the secret chamber that the Anbu reappeared from the shadows. They glanced at the scroll on the table, their eyes beneath their masks revealing a hint of undisguised astonishment.

Memorizing the Four Symbols Seal in less than an hour?

Are you kidding me!

At the same time, in the Hokage's office.

Hiruzen Sarutobi puffed on his pipe as he listened to the report from the ANBU officer kneeling on one knee before the table.

"The Four Symbols Seal? He actually chose the Four Symbols Seal?"

The third generation exhaled a puff of smoke, a hint of surprise flashing in his cloudy eyes.

He had assumed that Aoba would choose some powerful offensive ninjutsu to compensate for the shortcomings of the sand control technique, so he even included the Flying Thunder God Technique.

Unexpectedly, Aoba chose the sealing technique.

Pity!

Ever since Minato Namikaze earned the title of "Yellow Flash" on the Kumogakure front with his Flying Thunder God Technique, Hiruzen wanted to train a few more ninjas with high mobility like Minato. Unfortunately, the learning threshold of the Flying Thunder God Technique was too high, and several people he had high hopes for ended up failing.

He had witnessed Aoba's talent in ninjutsu and thought he would choose the Flying Thunder God Technique, but he unexpectedly chose the sealing technique.

"This kid is becoming more and more unpredictable."

The Third Hokage muttered to himself, then waved his hand to dismiss the Anbu.

After leaving the Hokage Building, Aoba went straight home.

In the days that followed, Aoba lived an extremely low-key life.

Aside from eating and sleeping, he spent most of his time in the laboratory at Konoha Hospital.

With his status as a Jonin and his connections at the hospital, the hospital specially set aside a separate laboratory for his research.

This is one of the benefits of being a Jonin.

He currently possesses two types of bloodline limits.

Here, he uses specialized medical equipment, combined with the computing power of the chip, to continuously deduce the Sharingan (organ/

The underlying logic of Constitution-type Bloodline Limit and Yamato Hagura (Chakra Fusion Type Bloodline Limit).

After each experiment, he would meticulously clean up all traces, leaving absolutely no room for doubt.

That evening, Aoba had just finished cleaning the laboratory equipment and was walking out of the Konoha Hospital gate, rubbing his slightly sore neck, when he bumped into a familiar blond figure.

"Aoba-kun, it's been a long time."

Minato Namikaze was dressed in casual clothes, his face bearing his signature gentle smile, the sunlight almost blinding.

"Minato-senpai, what a coincidence."

Aoba greeted him with a smile.

Konoha is only so big; there aren't that many chance encounters.

The two exchanged a few simple pleasantries, nothing more than pleasantries about the current situation at the front and congratulations on the promotion, before Minato extended an invitation.

"How's your vacation going? If you're not too busy, why don't you come over for dinner tonight? Kushina's been talking about you for ages."

"Okay, then I'll take my leave."

Aoba did not refuse and readily agreed.

The two walked side by side through the streets of Konoha, chatting about interesting things that happened on the front lines. Before long, they arrived at Minato's residence.

"Ding-dong."

Shortly after the doorbell rang, the door was opened from the inside.

A cascade of bright red hair came into view. Kushina was wearing a home apron and holding a spatula. When she saw the two people outside the door, her face immediately lit up with a warm smile.

"Minato, you're back! Oh, Aoba-kun's here too, come in, come in!"

Aoba changed her shoes and walked into the living room. Looking at the warm and cozy scene, she blurted out without thinking, "Minato-senpai, Kushina-senpai, when are you two getting married?"

The air suddenly went silent for a second.

Kushina, like a boiled crab, even seemed to have her red hair become more vibrant. Waving a spatula, she stammered, "Marriage—what—marriage—is—still—too early! Why are you asking such nonsense, you brat!"

After saying that, Kushina blushed and turned to run into the kitchen.