Powerful Fusion Ability

"Lord Jiraiya, be more careful from now on. Keep messing around like this and you'll end up crippled!"

After setting Jiraiya's broken bones and stitching up his wounds again, the physician helplessly reminded him. This lord was far too reckless.

"Got it, got it!"

Jiraiya hurriedly agreed, looking rather embarrassed. He had not expected that Sealed Item Scroll to contain so many oversized scrolls. They had crushed the hospital bed and broken his bones, which had only just begun to heal.

After the physician left, Jiraiya turned to look at Shimura Kentei. He said nothing, merely stared at him fixedly with a trace of resentment.

He felt that this cheap disciple had set him up!

"Teacher Jiraiya, you can't blame me. I warned you beforehand, and those really are all D-Rank Body Strengthening Technique training scrolls. There wasn't the slightest bit of padding."

Unable to bear the resentful gaze of a grown man, Shimura Kentei explained, indicating that this was not his fault.

"Do I look like an idiot?"

The resentment on Jiraiya's face deepened. He felt that this cheap disciple was insulting his intelligence.

It was just a D-Rank secret technique training scroll. How could it possibly need to be that large and that numerous?

Even the Scroll of Seals Teacher Sarutobi kept was not as absurdly excessive as this.

"Little girl, don't think I didn't see you nodding. You're insulting me, Jiraiya!"

Catching Shimura Keiko giving a slight nod from the corner of his eye, Jiraiya fumed. He was going to be the teacher of the future Child of Destiny!

"Sister Keiko, it's time to eat. Go bring two meals for Teacher Jiraiya and me."

Signaling for his fiancée to leave first, Shimura Kentei extended a Chakra Thread and unrolled one of the oversized scrolls piled nearby. "These really are all Body Strengthening Technique training scrolls, without any padding at all. It's just that compared to other ninjutsu scrolls, our Shimura Family's are a tiny bit more detailed."

After looking for a while, Jiraiya suddenly asked, "Are you sure this is only a tiny bit more detailed?"

It really was detailed. Every key point had been broken down and explained thoroughly. Even Ninja Academy students who had not yet graduated could understand it.

No wonder it took so many scrolls. There had to be tens of millions of words in them.

This was far too detailed!

"That's right, only a tiny bit more detailed!"

Shimura Kentei nodded seriously, insisting that it was only a tiny bit more detailed.

"Does a D-Rank secret technique really need to be written in this much detail?"

Jiraiya glanced at the pile of oversized scrolls again and grumbled, utterly unable to understand the Shimura Clan's bizarre approach.

This was only a D-Rank secret technique. If they developed C-Rank or even higher-ranked secret techniques later, how many words would they need?

Would they be counted by the hundred million?

"Just like ninjutsu, E-Rank Body Strengthening Techniques are for clan members under ten years old, while D-Rank Body Strengthening Techniques are for clan members who have graduated and become Genin.

"Clan members at that level are still children, and their comprehension is limited. Training in secret techniques that strengthen the body is extremely dangerous, and a single mistake can cause irreversible damage.

"To avoid such unnecessary injuries, these training methods must be written as clearly and thoroughly as possible.

"At the same time, this set of Body Strengthening Techniques involves many knowledge points. As long as one thoroughly understands them, cultivating other ninjutsu afterward will become much easier."

"That does make sense!"

Jiraiya nodded in realization, acknowledging his cheap disciple's point.

These secret techniques were indeed fundamentally different from ninjutsu. Most ninjutsu acted outside the body. For example, even if the Great Fireball Technique became unstable and exploded, one only needed to retreat immediately. There would not be much danger.

However, techniques that enhanced physical fitness, especially the Super Strength Technique, acted inside the body. One careless mistake could cause severe injuries or even endanger one's life.

No matter how cautious one was in this regard, it was warranted!

After chatting with Jiraiya for a while, Shimura Kentei saw that night had fallen and sank into sleep, his consciousness entering the Black Cauldron Space and merging with his duplicate inside.

"It's grown so much!"

Looking at the golden orb above the space, Shimura Kentei's face filled with delight.

This Black Cauldron Space was circular, surrounded by translucent barriers. One could vaguely make out that it was a three-legged round cauldron. The black cauldron mark in his palm was also shaped like a three-legged round cauldron, so this was clearly the internal space of that black cauldron mark.

Back when he had taught the E-Rank Body Strengthening Technique to his fiancée, Shimura Keiko, specks of light had gradually appeared in the Black Cauldron Space, eventually gathering into this orb.

After he gave the Body Strengthening Technique to Jiraiya today, the orb had grown nearly tenfold.

At that moment, a piece of information appeared in his mind.

"Fusion!"

After recovering from his daze, Shimura Kentei looked at Keiko's duplicate beside him and activated the ability the golden orb had just granted him.

As the fusion ability activated, a torrent of data flew from Keiko's duplicate and merged into his body. Immediately afterward, a massive amount of memories flooded into his mind. At the same time, he felt every aspect of his body greatly improve, and even his chakra increased severalfold.

This was the fusion ability. It could merge the data of other duplicates into himself, granting him everything they possessed, including memories, ninjutsu, innate chakra attributes, and all kinds of bloodline physiques.

"Wind Release: Wind Blade!"

Following Keiko's duplicate's memories, he raised his hands to form seals, and a Wind Blade shot from his mouth.

"It really works!"

The delight on Shimura Kentei's face grew even stronger as he recognized the power of this ability.

Although the fusion ability only worked within the Black Cauldron Space and could not affect his body in reality, it allowed him to experience chakra nature transformation, greatly reducing the difficulty of cultivating acquired chakra attributes.

In theory, ninja could cultivate chakra attributes beyond their innate attributes. These chakra attributes that one did not possess naturally but cultivated through later effort were what he called acquired chakra attributes.

Compared to innate chakra attributes, acquired attributes were much weaker. Not only did they consume far more chakra when using ninjutsu, but they were also more difficult to use and required constant control to maintain the nature transformation.

Furthermore, acquired attributes did not truly belong to one's body. They could not be further cultivated into the chakra release of a Kage-level expert, nor could they allow one to advance to the Kage level.

They could not even be fused into a Kekkei Genkai to strengthen the user. Because of these disadvantages, few people cultivated acquired attributes they did not naturally possess. It was simply an exhausting and unrewarding endeavor.

Yet cultivating acquired chakra attributes was Shimura Kentei's goal and only path forward. Because he had been born prematurely, his chakra had not developed any innate attributes, so he could only cultivate acquired ones.

Unfortunately, his chakra points had mutated, preventing him from using hand seals to drive chakra changes and release ninjutsu. As a result, he could not experience the properties of chakra attributes, much less cultivate acquired attributes.

This had become a vicious cycle. It had troubled him before, but now things were different. This fusion ability allowed him to directly experience the chakra attributes possessed by duplicates, and they were even innate chakra attributes.

As long as he gained sufficient understanding of the nature transformations of these attributes, he could absolutely create acquired chakra attributes for himself.

Then he could see whether there was a way to reverse the acquired into the innate and form innate chakra attributes.

Although it seemed difficult, and there had never been such a precedent in the ninja world, as a transmigrator with a Golden Finger, nothing was impossible.

"Sister Keiko, this time I'll make you surrender!"

Having experienced the wonders of fusion, Shimura Kentei boldly challenged Sister Keiko's duplicate again, this time using ninjutsu.

Then, three seconds later, a pile of minced meat hit the ground. It was Shimura Kentei, who had been diced apart by Shimura Keiko's duplicate using Wind Release ninjutsu.

Ideals were plump, but reality was skinny.

Although fusion had granted him everything Keiko possessed, including her chakra attributes and the ninjutsu she knew, he was not Shimura Keiko herself. Even with all of that, he only had a foundation. He was still far from being able to use it flexibly, and it would take a long period of adaptation and training before he could fully master it.

"There really is no shortcut with zero distance!"

The restored Shimura Kentei sighed gloomily, realizing that he had been too naive.

It seemed that, for the time being, he still could not escape the fate of being beaten up by his fiancée.

Without becoming discouraged, Shimura Kentei rose and once again began a ninjutsu duel with Shimura Keiko's duplicate. This time, however, he wore the battle suit that had been copied into the Black Cauldron Space.

With the protection of that battle suit, which was nearly immune to ninjutsu, he would at least not be instantly killed.

While Shimura Kentei sparred with Keiko's duplicate and practiced ninjutsu in the Black Cauldron Space, Uchiha Mikoto finished her training for the day in the Uchiha compound and received a mission from her father.

"You want me to join that guy's team?"

Uchiha Mikoto's eyes widened. She had not expected her father to give her such a mission.

"Taijutsu is also one of our Uchiha Clan's major weaknesses. If we can obtain the Shimura Clan's Body Strengthening Secret Technique, it will definitely double the clan's strength. Most importantly, it can lessen the burden of the Mangekyō Sharingan."

Kneeling in the seat of honor, Honoka Uchiha looked at Fugaku Uchiha and his daughter, Uchiha Mikoto, standing before him, revealing how much importance he placed on the Shimura Clan's Body Strengthening Secret Technique.

Their Uchiha Clan was not actually weak in taijutsu, but that depended on who they were compared with. Compared to those humanoid beasts of the Senju Clan, they fell far behind, especially in terms of strength.

This even restricted the Sharingan's performance. The Sharingan gave them powerful dynamic vision, but because of their physical limitations, they could see through their opponents' movements while their bodies could not keep up.

If they could make up for this weakness, the Uchiha Clan's strength could at least double.

"The burden of the Mangekyō?"

Fugaku Uchiha looked puzzled, not quite understanding what that meant.

As the son-in-law chosen by the clan head, he naturally knew of the Mangekyō's existence. However, he did not understand what was meant by the Mangekyō's burden.

Could it be that the Mangekyō had some hidden danger?

"Although the power of our Uchiha Clan's Mangekyō Sharingan is formidable, every use drains the life force within the body. The stronger the Dojutsu used, the more life force it drains.

"Back then, Lord Izuna suffered from illness and pain because he overused his Dojutsu, allowing Senju Tobirama to ambush him successfully.

"After Kagami Uchiha awakened the Mangekyō Sharingan, he coughed blood every time he used it and even suffered declining eyesight.

"Kagami and I studied this at the time and initially concluded that strengthening the body, especially increasing vitality, could reduce the Mangekyō's side effects to a certain extent."

Staring intently at Fugaku Uchiha before him, Honoka Uchiha revealed this secret.

He was very satisfied with this son-in-law he had chosen. Although Fugaku lacked decisiveness, his talent was excellent, and he had a great chance of awakening the Mangekyō Sharingan. That qualified him to learn these secrets.

"Father, I will complete the mission!"

Having learned this secret, Uchiha Mikoto cast an affectionate glance at her fiancé, Fugaku Uchiha, beside her and firmly accepted the mission.

She had long heard her father say that Brother Fugaku had a chance of awakening those eyes. Now that those eyes had such severe side effects, as his fiancée, she had an obligation to obtain that Body Strengthening Secret Technique and alleviate their side effects.

"Be careful!"

Fugaku Uchiha opened his mouth, but in the end, he only managed to say those words.

Although he truly did not want his fiancée to carry out such a dangerous mission, both he and the entire Uchiha Clan needed that Body Strengthening Secret Technique.

Otherwise, even if he awakened the Mangekyō in the future, it would be meaningless. What he and the clan needed was not a pair of Mangekyō that could only be used briefly, but eyes that could be maintained for a long time.

They had to get that Body Strengthening Secret Technique. Shimura Kentei was a good point of entry.