Rebuilding Uchiha By Removing Fugaku

"Deduction..."

Toki groaned as he clicked on the option on the computer.

[Please use your consciousness to input the desired ninjutsu effect.]

Toki: "???"

So that's how this works?

After some hesitation, Toki input the ninjutsu effects of Konan's Dance of the Paper Jutsu into the computer.

The word "Loading" appeared on the screen, followed by a list of practice methods.

[Paper Style Technique (S-Rank): By using chakra to transform paper, apply Yang Release to fuse one's physical body with special paper. This allows the body to function like a tailed beast, enabling control and attack through the modified paper.

Training methods are as follows:...]

Toki's eyes lit up in surprise.

He realized that the essence of Yang Release was the energy of the physical body. The Akimichi clan's Yang Release secret technique, which allows them to grow into giants, clearly surpasses the normal limitations of the physical body.

This proved that Yang Release enabled supernatural control over the body—such as Konan's ability to merge with paper or the Hozuki clan's water transformation technique.

The reason these techniques, which seem like kekkei genkai, are not classified as such is that they are specific applications of Yang Release rather than genetically inherited abilities.

"So that's why tailed beasts can transform from chakra into physical entities—it's because of Yang Release."

Yin Release uses spiritual energy to create material forms from nothing.

Yang Release uses physical energy to inject chakra or will into inorganic objects, bringing them to life.

The Sage of Six Paths' Creation of All Things was developed through the combination of Yin-Yang Release and had no connection to the basic Five Elemental Releases.

The so-called Paper Style involves completely converting the body into chakra and attaching it to pre-prepared chakra-enhanced paper. The Hozuki clan's water transformation technique similarly transforms the body into water while attaching chakra to it.

These techniques are immune to physical attacks because their bodies are essentially chakra tied to the soul, not physical matter like paper or water. Physical-level attacks are ineffective; only chakra-infused with spiritual energy or attribute-based attacks can counter them.

For example, Konan's Paper Style is vulnerable to oil or Fire Release, while the Hozuki clan's water transformation technique is restrained by Lightning Release.

As he pondered, Toki was reminded of the elemental Devil Fruits from the pirate world next door. Their functionality seemed remarkably similar to these secret techniques.

Recalling the chakra circuit from the Water Dragon Bullet Jutsu, Toki thought: If Devil Fruits were like ninjutsu circuits embedded within the body, eating a Devil Fruit would be equivalent to imprinting a magic circuit in oneself. The user would only need to inject stamina to activate the corresponding ability.

Toki smirked and asked the machine with his thoughts:

"Can the deduced ninjutsu be optimized into a magic circuit and then sealed into... a fruit?"

[Ding~ Understood! However, creating physical objects requires consuming family reputation points.]

Toki: "..."

Rubbing his temples, Toki entered a strange request into the computer:

"Create a Devil Fruit—no, a ninjutsu circuit. Design it with the ability to transform oneself into a leather jacket. Anyone who wears it will be controlled by the user. Upon the user's death, the ability transfers to a new carrier. Eating the fruit should make the user unable to swim, and it should taste worse than anything imaginable."

[Ding~ Ninjutsu is being deduced...]

[Congratulations on successfully creating the Leather Jacket Tailed Beast Fruit.

Abilities: The eater becomes the Leather Jacket Jinchūriki, enabling the use of the Leather Jacket Secret Technique to transform into a leather jacket that can be worn by creatures of any size. The wearer will be controlled by the Jinchūriki. Upon the Jinchūriki's death, the ability randomly reincarnates in a new fruit. The wearer's water susceptibility will cause chakra circuits to short-circuit. Genetic information has been added to ensure the fruit tastes revolting.]

[Ding~ 1,000 family reputation points deducted. The Leather Jacket Tailed Beast Fruit is being generated...]

A tray extended from beneath the computer, presenting a bizarre fruit with a bow-like pattern.

Behind him, Pakura stared at Toki with a peculiar expression and asked,

"What's the point of this thing with so many flaws? How will you convince someone to wear it? It's afraid of water, tastes terrible, and you expect to control others with it? What kind of joke ninjutsu is this?"

"Haha" Toki forced a laugh.

"It's just an experiment."

Internally, though, he was starting to second-guess himself. This so-called Leather Jacket Tailed Beast Fruit was utterly ridiculous.

But then again, he considered: Devil Fruits and tailed beasts share many similarities.

Both grant their hosts unique abilities, reincarnate upon the host's death, and both originate from powerful sources—Devil Fruits from the sea and tailed beasts from the Ten-Tails' chakra.

The only differences are their levels of willpower and energy. Could Devil Fruits be a weaker version of tailed beasts?

Staring at the useless fruit in his hand, Toki sighed. "This system is getting crazier by the day."

Curious, Toki input the ability of the Light-Light Fruit into the computer.

[Ding~ System deduction complete. Creating a physical object will cost 100,000 family reputation points. Proceed?]

Toki: "No."

The exorbitant price reminded him that the Leather Jacket Tailed Beast Fruit had been a "friendship discount."

With only 70,000 family reputation points left after building the Ninjutsu R&D Center, Toki knew he couldn't afford extravagant experiments.

Turning to the Light Release Secret Technique listed on the screen, Toki found it intriguing.

[Light Release Secret Technique Optimization (S-Rank): Enables the user to transform their body into light, rendering them immune to physical and non-spiritual energy attacks. Grants the speed and power of light, the ability to create light clones, and the ability to emit lasers capable of large-scale explosions.]

Toki blinked, realizing that this Ninjutsu R&D Center was turning into a truly overpowered tool.