Rapid Growth in Strength

In Konoha's morning mist, patrolling shinobi moved through the streets like ghosts, their footsteps light and swift, leaving no trace.

As the spy incident continued to escalate, every corner of the village came under strict surveillance. Even the remote alleys that were usually overlooked were now watched by Anbu shinobi.

"Captain, do we really need to cover even these little corners? Hardly anyone ever comes here!"

A rookie shinobi who had just joined the Anbu could not help complaining to his captain.

"Shut up. Weren't the places where the incidents happened previously also places with barely anyone around? It has already happened. All we can do is what we can, and try our best to prevent similar incidents from happening again!"

The Anbu captain leading the team had vigilance and determination in his eyes. Not even the slightest disturbance could escape his notice.

Meanwhile.

The Uchiha Clan's security force members were especially busy because of this incident.

Their figures frequently appeared beneath the cover of night, and every clan member was mobilized to take part in patrols and investigations.

Because of the spy incident, Hiruzen Sarutobi personally sought out the current head of the Uchiha Clan, Fugaku Uchiha.

He expressed his hope that the Uchiha Clan would strengthen their patrols during this period and protect the village's safety.

The Uchiha Clan's relationship with the village had never been good to begin with, and voices calling for rebellion had even started to emerge within the clan.

As the Uchiha Clan's head, Fugaku naturally could not watch them go to their deaths.

This mission was a perfect opportunity to ease the relationship between the Uchiha Clan and Konoha's villagers, so Fugaku agreed without hesitation.

However, this sudden assignment disrupted the lives of the Uchiha Clan members in the Konoha Military Police Force. Their once peaceful daily routines were replaced by tense patrols.

Some Uchiha Clan members began to complain. They were exhausted and dissatisfied with the abrupt change, believing that Konoha was unilaterally exploiting their labor over a nonexistent spy incident.

But more Uchiha Clan members who loved peace silently took on the responsibility. They knew that as long as they patrolled properly, they could repair the Uchiha Clan's poor reputation among the villagers.

In such a tense atmosphere, Naruto's friends could only stay at home.

The parents from the major clans naturally understood the impact of this incident better than ordinary villagers.

It was not just the spy incident. There was also an undiscovered taijutsu expert in Konoha who was at least jonin-level, and not a single clue had been found.

Their parents worried about the children's safety and would not allow them to go out until this disturbance had passed before letting them play outside again.

"I want to go play with Naruto, don't you think so, Akamaru?" Inuzuka Kiba rolled around on the floor at home. Even Akamaru, who was usually obedient and well-behaved, barked a few times in agreement.

"What is Naruto doing right now?" While helping out with the family flower shop, Ino spaced out and wondered what Naruto might be doing at this moment.

"Delicious, so delicious. Has Naruto eaten yet? Next time, I'll definitely beat Naruto and eat even more than him!" Choji, who was stuffing himself with grilled meat, thought of Naruto.

"What a drag, what a drag. It's great that I don't have to go out." That was Shikamaru. He was already too lazy to leave the house. Every time he went out to play with his friends, his mother had forced him to do so. Although playing with them was quite fun, he still found it troublesome!

This spy incident truly left some delighted and others worried!

Naruto had nothing much to do alone at home. The spy incident had restricted his movements, and he could no longer wander around the village as freely as before.

There were now more Anbu around his home watching him. Compared to before, they were now more focused on protecting his safety. After all, with something like this happening, the Jinchuriki's safety was still very important.

However, that did not stop him from sneaking out every night to train in even more remote places.

For safety's sake, he had no choice but to use the Shadow Clone Jutsu while activating Mind's Eye of the Kagura to keep watch, ensuring that no one discovered his secret training.

During this period, with no one else disturbing him, Naruto devoted all his attention to training.

Naruto first spent some time training in taijutsu, strengthening his foundation.

He knew that as a shinobi, powerful taijutsu was indispensable. I may not use it in battle, but I cannot afford not to know it.

His body grew stronger through training. Every punch and every kick was filled with power.

His movements became faster and more precise, while his reactions became sharper.

In battles against his Shadow Clones, he constantly challenged his limits. Every fall only made him rise with greater determination and continue fighting.

After training in taijutsu for a while, Naruto's taijutsu had reached a fairly advanced level.

So Naruto began training in ninjutsu again.

Naruto began practicing the two new ninjutsu he had acquired: the C-rank Wind Release: Great Breakthrough and the C-rank Fire Style: Phoenix Sage Fire Technique.

With Naruto's exceptional talent and the cheat-like assistance of the Multiple Shadow Clone Jutsu, he learned both techniques with ease.

They did not take much time at all.

Moreover, he discovered that as long as he infused more Chakra into them, both techniques could unleash even greater power. With enough Chakra, the destructive power of these two C-rank ninjutsu could at least rival B-rank ninjutsu.

No wonder Uchiha Madara had used a single B-rank Fire Release ninjutsu during the Fourth Shinobi World War—Fire Release: Great Fire Annihilation. He exhaled a massive sea-like expanse of flames ahead of him, covering an enormous area.

Its power rivaled S-rank Ninjutsu! The Shinobi Alliance had exhausted more than twenty Hidden Mist shinobi, all using Water Wall at the same time, just to block Madara's Great Fire Destruction.

Having a huge amount of Chakra really meant you could do whatever you wanted.

This gave Naruto more options and variations in battle.

He began trying to combine the two ninjutsu, creating new methods of attack.

As the saying went, fire borrowed the wind's momentum. With proper Chakra distribution, the power of his combined ninjutsu could double.

His attacks became more varied and harder to predict.

After finishing his ninjutsu training, Naruto felt that he still lacked a high-powered ninjutsu in his arsenal.

He lacked the kind of ninjutsu that could kill with a single blow.

He thought of his signature technique from the original story: the Rasengan.

This ninjutsu, created by the Fourth Hokage, Minato Namikaze, after taking inspiration from the Tailed Beast Bomb of the Tailed Beasts, was famous for its tremendous power and unique form.

Just as Naruto thought about learning the Rasengan.

"Ding. System Quest issued. Please have the Host successfully learn the Rasengan."

The Rasengan was already a ninjutsu Naruto wanted to learn. Now he could also receive an additional quest reward. This was simply wonderful.

The Rasengan. This technique required no Hand Seals from the user, and it could be performed with one hand, two hands, or even three hands.

There was actually no fundamental difference. It only depended on the caster's ability to control Chakra. The Fourth Hokage, Kakashi, and Jiraiya could all perform it with one hand.

In the original story, Naruto's control was weak in the early stages, so he needed "another person"—namely, a Shadow Clone—to help him. It seemed that the more hands used, the easier it was to gather Chakra, and the more powerful the Rasengan became.

Beginners, such as Naruto when he first learned it in the original story, had to use both hands. One hand was held ready to gather the Chakra sphere, while the other continuously pressed and pushed against it. Both hands released Chakra simultaneously until a Chakra sphere formed.

Afterward, if Chakra control improved further, one could use only one hand to release Chakra, control it properly, and practice this technique.

Learning the Rasengan was divided into three stages.

The first stage was releasing Chakra from a specific part of the body, such as the feet or hands. Kakashi had once taught Naruto and the others this, and they had successfully learned it.

The second stage was continuously releasing a fixed amount of Chakra, a further development of the first stage.

The third stage involved water balloon and rubber ball training, maintaining the released Chakra and giving it tangible form until one could burst a rubber ball. After completing this stage, the Rasengan could already cause damage, though only very minor surface injuries.

The final stage was combining everything from the previous stages: gathering Chakra in the hand, releasing it continuously, maintaining it, and finally solidifying it into a miniature typhoon.

The technique instantly became incredibly powerful. Not only could it cause greater external damage, it could also penetrate the enemy's body and destroy them internally.

However, the Rasengan had one weakness: it could only attack in a straight line. But it also had one major advantage—it did not require much Chakra.

And the more Chakra infused into it, the greater its power became.

Following the training method in his memories, Naruto purchased the necessary materials.

He began training in the Rasengan. The process was not easy and required extremely high control and precise manipulation of Chakra.

Naruto had great talent, and with the Nine-Tails no longer interfering, his training went fairly well.

Naruto and his Shadow Clones tried again and again, failing over and over before trying once more.

Their palms became red and swollen from the high-speed rotation of Chakra, but they did not give up.

After every failure, Naruto carefully considered the reason for it, adjusted his method, and tried again.

After countless failures and efforts, Naruto had lost track of how many Shadow Clones he had created.

But Naruto finally found the feeling.

"It's coming, it's coming! I've got the feeling! My Rasengan is about to be complete!" Naruto became incredibly excited in an instant.

He felt the Chakra form a stable rotation in his hand. The rotation grew faster and tighter, eventually forming an almost perfect spiral.

He successfully created a small Rasengan. Although its current power was still nowhere near that of the Fourth Hokage's, that was only because Naruto was still in the exploratory stage and had not infused too much Chakra into it.

After successfully using the Rasengan, Naruto did not rush to rest.

He knew to strike while the iron was hot. So Naruto continued training, constantly improving the Rasengan's power and stability.

His Shadow Clones did the same. As batches of Multiple Shadow Clones continuously dispersed and were created anew.

Naruto's experience grew richer and richer, and his mastery of the technique became increasingly effortless.

As time passed, Naruto's grasp of the Rasengan became more and more proficient. He could control this powerful ninjutsu as he pleased.

Now, unlike in the original story, he no longer needed a Shadow Clone's help to successfully use the Rasengan.

As long as Naruto wanted to, Chakra could gather in his hand with incredible speed, and a Rasengan could form almost instantly.

And as Naruto continuously infused more Chakra, the sphere would grow larger and larger.

Although it was an A-rank ninjutsu, its destructive power was far beyond A-rank!

As Naruto's strength continuously improved, he became more and more confident.

In a few more years, he would be able to roam freely across the shinobi world!

After this period of training, Naruto also became more mature and steady.

Time slowly passed, and as the spy incident gradually subsided, Konoha once again returned to its former peace.

It seemed as though nothing had changed, yet it also seemed as though everything was slowly changing!

"Congratulations, Host. Quest completed. You have successfully learned the Rasengan!"

"Congratulations, Host. You have received the reward: Hyuga Clan bloodline!"

"I knew it. Another bloodline added. I could gather all the bloodlines in my body and play mahjong!" Naruto was extremely satisfied with this reward.

But at the same time, he had some doubts in his heart.

"System, I have a question. My body now has both the Uchiha Clan bloodline and the Hyuga Clan bloodline. If I gain both the Byakugan and the Sharingan, will they conflict? Or can I only switch between them?"

Naruto voiced his question.

"Answering the Host. As long as the shinobi bloodlines within the Host's body completely fuse, the Host's eyes will fuse as well. As long as the Host wishes it, the Sharingan can be activated while the Byakugan is active. Even after the Host obtains the Rinnegan and Tenseigan, both can be activated simultaneously."

"The Host will retain all special abilities of the activated eyes!"

"Holy crap, System, are you really trying to make me invincible?!"

After obtaining the Hyuga Clan bloodline, Naruto quietly returned home and began catching up on sleep.

Every time he obtained a new bloodline, his body needed some time to fuse with it.

I'm used to it! Time to sleep!

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