Naruto: Starting as Tsunade's Desk Mate

After looking at the intelligence scroll in his hand again, Tobirama Senju sighed and realized that the younger generation was indeed getting old. When did he invent his first A-rank ninjutsu? It seemed to be when he was ten years old.

Heroes of the world are as numerous as carp crossing a river, emerging one after another.

Tobirama Senju remembered the name An Yan and planned to train him when he had time.

Young geniuses like An Yan, identified through the malicious perception of his sister-in-law, are pure successors to the Will of Fire and naturally need to be nurtured properly.

Tobirama Senju examined the Rasengan that his sister-in-law had given him, and after a little thought, he understood what it was all about. Following the ideas provided by An Yan, he continued to simulate it, and it worked. Tobirama Senju immediately classified it as a forbidden technique.

As everyone knows, forbidden techniques are all advanced ninjutsu, reserved for the strong.

After pondering for a moment, Tobirama Senju immediately determined that this thing could complement his combat power.

If you follow up the Flying Thunder God Technique with a super-sized Rasengan at point-blank range, most people would die.

Another deadly move upon first meeting.

Tobirama Senju planned to take some time to practice this ninjutsu to increase his strength. Since it was still wartime, the more trump cards he had, the better, as he might need them at any time.

Chapter 13 Yang Seal and the Mangekyou Sharingan

The quiet courtyard of Mito Uzumaki.

"Fire Sealing Seal!"

An Yan cast a sealing technique, channeling his chakra into the flames burning on the ground and then into the unfolded sealing scroll. Upon seeing the huge character "封" (seal) appear on the scroll, he immediately breathed a sigh of relief.

In a nearby room, Tsunade was engrossed in reading, completely absorbed in a pile of books.

Mito Uzumaki watched as An Yan completed another sealing technique, then nodded slightly with a satisfied smile, before looking a little troubled about what to teach him next.

I just gave An Yan the sealing technique scroll yesterday, and he came over today saying he's learned it. Mito Uzumaki naturally didn't believe me.

But to everyone's surprise, An Yan actually used all the sealing techniques he had given him yesterday. He said there was one Five Elements Sealing Technique that he had comprehended but couldn't use because he didn't have enough chakra.

I know you're a genius, but you're learning way too fast! Are the tadpole script for sealing techniques so easy to learn?

Mito Uzumaki said she had never seen such a genius. "I'll see where your limits are."

Mito Uzumaki directly increased the strength of An'an.

One-Element Seal, Two-Element Seal, Three-Talent Seal, Four-Element Seal.

The complexity of each of the four seals increases progressively.

It can seal objects, seal energy, seal the soul, and seal the physical body.

An Yan was completely stunned. Although the system allowed him to forcibly understand this knowledge, the amount of information in the advanced sealing technique was too much. He was bombarded with information and felt dizzy and nauseous.

Mito Uzumaki thought that An'an couldn't understand the advanced sealing technique she was teaching.

However, when Mito Uzumaki asked him questions about sealing techniques, An'yan was still able to answer them in a very organized manner.

Mito Uzumaki, seeing an opportunity, immediately took An Yan as her successor and decided to impart all her knowledge to him. After all, the Uzumaki clan's sealing techniques had long been integrated into the Senju clan, and Tobirama Senju had already thoroughly studied the sealing techniques.

The Senju clan has already integrated into the entire Hidden Leaf Village, branching out and spreading out, so the inheritance of sealing techniques is naturally not lacking in one more person.

However, Mito Uzumaki still placed a sealing technique on An Yan to protect his memories, so as to prevent An Yan from dying unexpectedly or being captured by the enemy and causing the inheritance to be leaked. This was the price for obtaining the Uzumaki clan's sealing technique, and An Yan chose to accept it gladly.

He was barefoot, so what was he afraid of? Let the seal be sealed. With the system around, An Yan wasn't worried about Uzumaki Mito doing anything. Besides, he was just a commoner ninja, and he didn't have anything that others coveted. Uzumaki Mito wasn't Orochimaru, and she wasn't after his body. So, he would get the benefits first.

An Yan's biggest weakness right now is his chakra reserves, but Mito Uzumaki passed on to him the S-rank forbidden technique, Yin Sealing Technique. Once his body has developed sufficiently, he can begin training to directly address this weakness.

This technique can accumulate a large amount of chakra generated by the body's daily consumption, storing it for use during battles, and can also maintain youthfulness. It is Mito Uzumaki's exclusive secret technique, but unfortunately, children cannot practice it, as the technique will affect their physical development.

So, An Yan spent his days devouring all sorts of useful books in the ninja academy library, and after school in the afternoons, he would follow Uzumaki Mito to learn sealing techniques. He studied for sixteen hours a day, his schedule packed full.

While simple sealing techniques are indeed easy to learn, An Yan is now focusing more on the framework and concepts of sealing techniques, as well as how to develop the sealing techniques he desires.

From knowing what to do but not why, to understanding why each rune in the sealing technique is structured in a certain way.

These things cannot be recorded in books; they can only be passed down orally through personal instruction. This is the wisdom of the Uzumaki clan, passed down for thousands of years.

While An Yan was studying hard, Tsunade was also gritting her teeth and persevering. She has always been a person who never admits defeat. Seeing An Yan so diligently learning sealing techniques from his grandmother, studying for 16 hours a day from morning till night, Tsunade felt a strong sense of crisis.

People who are more talented than you are studying even harder than you, so why don't you hurry up and start working hard too?

Tsunade transformed pressure into motivation, and began to work herself into a frenzied, inward-looking force.

Hiruko felt immense pressure because being around outstanding people really requires strong mental fortitude.

Tsunade's thinking was simple: if I can't beat An Yan, can't I beat you?

Roll it up, roll it up to the bone.

In the blink of an eye, a year has passed.

A person's brain processing power is limited, and so is their energy. Once An Yan had filled his study time, he had no intention of deliberately pursuing reputation or anything like that. However, An Yan still reaped a lot of rewards during that year.

An Yan has thoroughly mastered the sealing techniques of the Uzumaki clan and has even begun to develop his own. After discussing with Grandma Mito, he has a general direction. What he needs now is to slowly research and carefully experiment.

The Uzumaki clan's Yin Seal stores a large amount of Yang Release chakra in the space between their eyebrows, which is connected to the pineal gland and is closely related to the Niwan Palace and Upper Dantian in Taoist legends.

So An Yan wondered if he could develop a Yang seal to collect the spiritual energy that dissipates from the body daily and nourish the upper dantian, in order to achieve a state similar to nourishing the Yin spirit and producing the Yang spirit, with the ultimate goal of strengthening the soul.

The Yang Release chakra collected by the Yin Seal can be transferred to the lower dantian. The two sealing techniques form a Yin-Yang cycle in the chakra meridians, without interfering with each other.

The ideal state of both techniques is to achieve longevity and immortality, to see if one can live for several hundred years longer and become a legendary immortal on land.

Mito Uzumaki was very interested in this. She was staying in Konoha and had nothing to do all day, so she simply devoted her energy to this and began to study the Yin-Yang Seal.

The Second Hokage, Tobirama Senju, had been keeping an eye on An Yan, and after learning that he and Mito Uzumaki were researching a sealing technique, he became interested as well.

As a master of forbidden techniques, Tobirama Senju had always been very knowledgeable about the soul and had developed many related techniques, such as the Impure World Reincarnation Technique and the Soul Imprisonment Technique. Therefore, when An'an proposed to nurture the soul, Tobirama Senju directly provided a large amount of information about the soul.

As Hokage, Tobirama Senju even invited ninjas from various clans in the village who were skilled in Yin Release techniques to brainstorm ideas. Members of the Kato clan, the Yamanaka clan, and even the Uchiha clan participated in the project.

Eventually, the Yin-Yang Seal slowly took shape, and the final version 1.0 of the Yang Seal was released. Uchiha Kagami, who volunteered to be the experimental subject, actually awakened the Mangekyou Sharingan as a result.

Chapter 14 The Descendants of Uchiha Kagami

Tobirama Senju immediately classified the Yang Seal as an S-rank forbidden technique and included it in the Book of Seals.

Other techniques are classified as forbidden techniques mostly because they require strict conditions to be performed or may cause harm to the body. However, the Yang Seal technique affects the soul, and its side effects are currently unknown. It requires multiple verifications over time and from various aspects, and therefore it has been listed as a forbidden technique.

However, An Yan felt that Tobirama Senju probably didn't want this technique to fall into the hands of other Uchiha, lest they develop a large number of Mangekyou Sharingan, causing an imbalance of power within the village and thus triggering internal strife in Konoha.

Uchiha Kagami clearly knew the true nature of his own people. He was an extremely calm person, similar in personality to Senju Tobirama, which was why Senju Tobirama valued him.

As the only Uchiha clan member acknowledged by Tobirama Senju, he understood what he should and shouldn't do without needing any instructions from others. Tobirama only needed to give him a look to comprehend the meaning.

Aside from Uchiha Kagami, the other ninjas from the Yin Release clans were easier to deal with; an S-rank mission record was enough to settle things. They were all there to assist Uzumaki Mito in developing sealing techniques, and were only responsible for providing information on the various subtle connections between Yin Release chakra and the soul.

They don't know the specific sealing techniques, or rather, even if those complex sealing techniques were placed right in front of them, they wouldn't understand or learn them unless they studied them for many years.

Kagami Uchiha was personally taught by the Second Hokage and already knew some sealing techniques. He also possessed the Sharingan, which allowed him to observe the flow of chakra. With guidance from Mito Uzumaki and Tobirama Senju, he learned the Yang Seal.

An Yan observed the entire development process of the Yang Seal and was thoroughly familiar with the key points, difficulties, and various taboos encountered during the development process. He had no fear of forbidden techniques, and since he was the one who proposed the idea and started the research on the Yang Seal, there was no reason not to use it after it was developed. Moreover, from his current perspective, the various structures of this sealing technique were perfect and there were no major flaws.

So An Yan immediately began cultivating, forming a circular mark between his eyebrows, as red as blood, like the Buddha in mythology.

Mito Uzumaki was only slightly worried about this. An Yan was right under her nose, and she could intervene at any time if anything unexpected happened. At worst, she could use a double seal to seal the Yang Sealing Technique.

Besides, An Yan has already mastered all the sealing techniques of the Vortex Clan. Even if he were to personally practice this still immature technique, he could easily figure it out and perfect it gradually over two or three years.

During the time it took to develop the Yang Seal, An Yan and Uchiha Kagami became somewhat acquainted. An Yan was quite talkative, so he learned that Uchiha Kagami's son was already in school.

Uchiha Kagami's son is named Uchiha Mitsukasa, and he is already in the fourth grade, making him An Iwa's senior. He is eight years old this year.

An Yan decided that since he had nothing else to do, he would try to get in touch with Uchiha Kōken and see what kind of strength this father of Uchiha Shisui possessed.

School days are really boring, so you have to find some fun for yourself from time to time.

So, at noon that day, An Yan found his fourth-grade classmates, and after a friendly exchange, he finally found Uchiha Koken at the training ground.

Uchiha Kōken's hairstyle and appearance are almost identical to Uchiha Shisui's; it's as if three generations of grandfather, grandfather, and grandson share the same model, truly befitting their blood relation.

When An Yan found him, Uchiha Mitsukasa was sparring with a child from the Sarutobi clan. Children from ninja clans generally master some clan secret techniques or ninjutsu by the age of eight, gradually widening the gap between them and ninjas from ordinary commoner backgrounds.

Under An Yan's watchful gaze, the two exchanged blows, their fists and kicks flying back and forth, occasionally unleashing a ninjutsu, somewhat reminiscent of Obito and Kakashi's battle during their ninja academy days.

The child didn't have much chakra, and after releasing his ninjutsu, the two quickly finished their battle, only then noticing An Yan beside him.

"Hey kid, who are you? Who sent you?"

When the children of the Sarutobi clan saw that An Yan did not have the insignia of a ninja clan, they subconsciously assumed that he might be a commoner ninja who wanted to steal ninjutsu or combat skills, and their tone immediately became somewhat displeased.

An Yan wouldn't tolerate him. He's the kind of person who responds better to gentleness than force. If this kid dares to talk back to him, he'll definitely fight back.

"I'm here to see Uchiha Mitsukasa. This is none of your business. Get out of my way."

"Hey, you brat!"

The Sarutobi clan child also had a fiery temper. He rolled up his sleeves and was about to fight when Uchiha Mitsukasa grabbed him by the back of his collar.

"Shin-no-suke, we've just used up a lot of chakra. It wouldn't be wise to make a move now."

Uchiha Mitsukasa held down Sarutobi Shinnosuke, comforted him for a couple of minutes, and then turned to look at An Yan.

"I don't know you. What do you want from me?"

"I've heard that the Sharingan of the Uchiha clan is unparalleled in the world. I've come to see it for myself."

An Yan made up a random excuse; he couldn't very well say that he was just bored and deliberately looking for trouble.

Upon hearing that An Yan admired the Sharingan's reputation, Uchiha Mitsukasa's expression softened slightly. As a member of the Uchiha clan, he had been used to people harassing him out of curiosity about the Sharingan since childhood.

"I'm sorry, little brother, I'm only 8 years old now and haven't awakened my Sharingan yet. Come find me again after I awaken it."

Uchiha Koken was clearly making excuses; by the time you awaken your Sharingan, An Yan wouldn't have the patience.

"If you haven't activated it, then you haven't activated it. Right now, you're over-consumed with chakra and not in good condition. I won't take advantage of you. 7 PM tonight, training ground number 13, I'll be waiting for you. Let me see if the Uchiha are nothing without activating the Sharingan."

An Yan's words caused Uchiha Kōken's forehead veins to throb slightly. These kids are really annoying these days, always bringing up the honor of the Uchiha clan. If he dares not to go to Training Ground 13 tonight, rumors about the Uchiha clan will probably start spreading tomorrow. After all, the Uchiha clan doesn't have many friends, and no one speaks up for him. If other Uchiha clans find out, he'll be criticized again.

"What an unlovable brat. In that case, it's settled then."

Seeing that Uchiha Koken had agreed to the duel, An Yan nodded in satisfaction, turned and left, not glancing at Sarutobi Shinnosuke once, displaying utter arrogance.

Shinnosuke felt like he was about to explode with anger. That brat was so annoying.

"I hate kids, especially cocky brats."

Shinnosuke said this, and Uchiha Mitsukasa nodded awkwardly in agreement. After all, he was a comrade, so he could only offer his support.