Powerful Fusion Ability

"Lord Jiraiya, be more careful in the future, or you'll end up crippled if you keep messing around like this!"

The physician, after re-setting Jiraiya's broken bones and stitching up his wounds, admonished him with a helpless tone. This lord was far too reckless.

"I know, I know!"

Jiraiya quickly responded, feeling quite embarrassed. He hadn't expected the Sealed Item Scroll to contain so many oversized scrolls, enough to collapse the sickbed and re-break his bones that were just starting to heal.

After the physician left, Jiraiya turned to look at Shimura Kentei, saying nothing, just staring intently with a hint of resentment.

He felt like he had been tricked by this cheap disciple!

"Teacher Jiraiya, you can't blame me for this. I warned you beforehand, and those were genuinely D-Rank Body Strengthening Technique scrolls, not a single drop of exaggeration."

Unable to withstand the resentful gaze of the grown man, Shimura Kentei began to explain, asserting that it wasn't his fault.

"Do I look like an idiot?"

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

How could a mere D-Rank Secret Technique training scroll require so many oversized scrolls?

Even the Scroll of Seals that Teacher Sarutobi kept wasn't as outrageously excessive as this.

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

His peripheral vision caught Shimura Keiko nodding slightly, and Jiraiya became furious. "I am the teacher of the future Child of Destiny, after all!"

"Sister Keiko, it's mealtime. Go bring me and Teacher Jiraiya two portions of food."

After signaling his fiancée, Miss Keiko, to leave first, Shimura Kentei extended a Chakra Thread and unrolled one of the oversized scrolls piled nearby. He said, "These are really all Body Strengthening Technique training scrolls, not exaggerated at all. It's just that compared to other Ninjutsu scrolls, ours from the Shimura Family are a tiny bit more detailed."

After watching for a while, Jiraiya suddenly spoke, "Are you sure it's just a 'tiny bit' more detailed?"

It was indeed very detailed, breaking down every single point so thoroughly that even a Ninja Academy student who hadn't graduated could understand it.

No wonder so many scrolls were needed; he estimated it must be tens of millions of characters.

This was just too detailed!

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

Shimura Kentei nodded seriously, insisting it was truly just a tiny bit more detailed.

"Does a D-Rank Secret Technique really need to be written this thoroughly?"

Jiraiya grumbled, glancing at the pile of oversized scrolls again, unable to comprehend the Shimura Family's peculiar method.

And this was just a D-Rank Secret Technique. If they were to create C-Rank or even higher-level Secret Techniques in the future, how many characters would they need to write?

In the tens of millions?

"Just like Ninjutsu, E-Rank Body Strengthening Technique is for clan members under ten years old to practice, and D-Rank Body Strengthening Technique is for clan members who have graduated and become Genin.

These ranks of clan members are still children with limited comprehension. Furthermore, these self-improvement Secret Techniques are extremely dangerous; one wrong move can cause irreversible damage.

To avoid these unnecessary injuries, these training methods must be written out as detailed as possible.

At the same time, this set of Body Strengthening Techniques involves many knowledge points. As long as one can understand them thoroughly, practicing other Ninjutsu will become much easier."

"That does make sense!"

Jiraiya nodded in realization, agreeing with his cheap disciple's explanation.

This kind of Secret Technique was fundamentally different from Ninjutsu. Most Ninjutsu affected the external body. For example, even if the Great Fireball Technique exploded dangerously, one could retreat immediately without significant risk.

However, these techniques that improved physical condition, especially the Super Strength Technique, affected the internal body. A single mistake could lead to severe injury, even life-threatening consequences.

In this regard, being cautious was entirely appropriate!

After chatting with Jiraiya for a while, as night fell, Shimura Kentei fell into a deep sleep. His consciousness entered the Black Cauldron Space to merge with his replicated self within.

"It's grown so much!"

Looking at the golden light cluster above the space, Shimura Kentei's face lit up with joy.

The Black Cauldron Space was circular, with semi-transparent barriers around it. It vaguely resembled a three-legged cauldron, just like the black cauldron mark on his palm. Clearly, this was the internal space of that black cauldron mark.

Ever since he first taught the E-Rank Body Strengthening Technique to his fiancée, Shimura Keiko, points of light had gradually appeared in the Black Cauldron Space, eventually converging into this light cluster.

And after teaching the Body Strengthening Technique to Jiraiya today, this light cluster had grown nearly tenfold.

Just then, a message appeared in his mind.

"Combine!"

After a moment of stunned silence, Shimura Kentei looked at the Keiko replica beside him and activated the ability just granted by the golden light cluster.

As the combination ability activated, a stream of data flowed from the Keiko replica into his body. Immediately after, a large mass of memories flooded his mind. He felt a significant improvement in all aspects of his body, and even his Chakra had increased manifold.

This was the combination ability, allowing him to integrate the data of other replicas into himself, possessing everything they had, including memories, Ninjutsu, and even innate Chakra affinities and various Kekkei Genkai.

"Wind Release: Wind Blade!"

Following the memories of the Keiko replica, he formed hand seals and a wind blade shot out from his mouth.

"It really works!"

His joy intensified as Shimura Kentei recognized the power of this ability.

Although this fusion ability only works within the Black Cauldron Space and cannot affect the physical body in reality, it allows him to comprehend the nature transformation of chakra, greatly reducing the difficulty of cultivating innate chakra attributes.

In theory, ninjas can cultivate chakra attributes other than their own innate ones. These postnatally cultivated chakra attributes, which they don't possess naturally, were named "postnatal attributes" by him.

Compared to innate chakra attributes, postnatal attributes are much weaker. Not only do they consume significantly more chakra when performing ninjutsu, but they are also more difficult to cultivate and require the user to actively perform nature transformation.

Furthermore, postnatal attributes do not belong to the user and cannot be further cultivated into the jutsu chakra of Kage-level powerhouses to advance to Kage Level.

They cannot even fuse into Kekkei Genkai to benefit the user. Because of these disadvantages, very few people cultivate postnatal attributes that they don't naturally possess, making it a thankless and arduous task.

However, cultivating postnatal chakra attributes is Shimura Kentei's goal and way out. Due to being born prematurely, his chakra did not develop innate attributes, so he can only cultivate postnatal attributes.

But his acupoints mutated, preventing him from changing chakra through hand seals to release ninjutsu. This way, he cannot experience the nature of chakra attributes, let alone cultivate postnatal attributes.

This created a vicious cycle, which had troubled him before. But now, this fusion ability allows him to directly experience the chakra attributes possessed by his clone and even innate chakra attributes.

As long as he has sufficient understanding of these attribute nature transformations, he can completely shape postnatal chakra attributes for himself.

Then, he will see if there is a way to reverse postnatal to innate, forming innate chakra attributes.

Although it seems very difficult, and there are no precedents in the ninja world, as a transmigrator with a Golden Finger, nothing is impossible.

"Sister Keiko, I will definitely make you sing 'Conquer' this time!"

Experiencing the wonders of fusion, Shimura Kentei, filled with heroic spirit, began fighting Keiko's clone, and this time he used ninjutsu.

Then, three seconds later, a pile of dumpling filling fell to the ground, which was Shimura Kentei, cut to pieces by Shimura Keiko's clone using Wind Release ninjutsu.

Ideals are full, but reality is bone-chillingly thin.

Although he possessed everything Keiko had through the fusion ability, including her chakra attributes and ninjutsu, he was not Shimura Keiko herself. Even with all of it, it was just a foundation, far from flexible application. This requires long-term adaptation and training to master completely.

"There really are no shortcuts that bypass distance in this world!"

Shimura Kentei, having recovered, sighed dejectedly, realizing he had been too naive.

It seems he still cannot escape the fate of being abused by his fiancée for the time being!

Undeterred, Shimura Kentei stood up and engaged Shimura Keiko's clone in a ninjutsu duel again. This time, he wore the battle suit copied into the Black Cauldron Space.

With the protection of this battle suit, which is almost immune to ninjutsu, he at least wouldn't be instantly killed.

Just as Shimura Kentei was sparring and practicing ninjutsu with Keiko's clone in the Black Cauldron Space, in the Uchiha compound, Uchiha Mikoto finished her daily training and then received a mission from her father.

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

Her eyes widened, Uchiha Mikoto was surprised her father would assign her such a mission.

"Taijutsu is also a major weakness of our Uchiha. If we can obtain the Shimura Family's Body Strengthening Secret Technique, it will definitely double our clan's strength. Most importantly, it will reduce the burden of the Mangekyo Sharingan."

Kneeling on the main seat, Uchiha Honoka looked at Fugaku Uchiha and his daughter Uchiha Mikoto before him, emphasizing his importance on the Shimura Family's Body Strengthening Secret Technique.

Their Uchiha clan is not weak in taijutsu, but that depends on who they are compared to. Compared to the Senju clan's human beasts, they are far inferior, especially in terms of strength.

This even restricts the effectiveness of the Sharingan. The Sharingan grants them powerful visual acuity, but due to their physical condition, they can see through the opponent's movements, but their bodies cannot keep up.

If this shortcoming can be addressed, it would at least double the strength of the Uchiha.

"The burden of the Mangekyo?"

Fugaku's face showed confusion, not quite understanding the meaning of those words.

As the clan head's chosen son-in-law, he naturally knew about the Mangekyo, but he didn't understand what "the burden of the Mangekyo" meant.

Could the Mangekyo have some hidden danger?

"Although the power of our Uchiha's Mangekyo Sharingan is immense, it draws upon our life force every time it is used. The stronger the Dojutsu used, the more life force is drawn.

Lord Izuna was once tormented by illness due to excessive use of Dojutsu, which allowed Senju Tobirama to ambush him.

After Uchiha Kagami awakened the Mangekyo Sharingan, he would cough up blood and even experience vision loss with every use.

At that time, Kagami and I researched it, and we initially deduced that strengthening physical fitness, especially enhancing life force, could somewhat reduce the side effects of the Mangekyo."

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

He was very satisfied with the son-in-law he had chosen. Although his personality was not decisive enough, his aptitude was excellent, and he had a great chance of awakening the Mangekyo Sharingan, thus qualifying to know these secrets.

"Father, I will complete the mission!"

Understanding this secret, Uchiha Mikoto looked affectionately at her fiancé Fugaku Uchiha beside her and resolutely accepted the mission.

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

"Be careful with everything!"

Fugaku Uchiha opened his mouth, but only managed to say "Be careful."

Although he didn't want his fiancée to undertake such a dangerous mission, he and the entire Uchiha clan needed that Body Strengthening Secret Technique.

Otherwise, even if he awakened the Mangekyo in the future, it would be meaningless. What he and the clan needed were not Mangekyo that could only be used for a short time, but eyes that could be held onto for a long time.

They had to get their hands on that Body Strengthening Secret Technique, and that Shimura Kentei was a good starting point.