Ryuji input the data for the Third Kazekage's body into the computer, then went to the sealed box on the other side of the console. He opened the port and took out a pile of miscellaneous materials from his system space, pouring them in.
The system space was infinitely large, allowing the retrieval and storage of items with thought, but limited to inanimate objects produced by the system.
After pouring in the materials, Ryuji pressed a green button on the sealed box.
Immediately, the mechanical arms also moved.
The light pens on them projected beams. As the mechanical arms moved, they seemed to be painting, sketching the outline of a human body on the console.
3D Printer.
Just input the relevant data into the computer, feed in the required materials, and press the start button to manufacture it.
This was the reward Ryuji received upon his three-year check-in, and also one of his three grand prizes.
The Observation Device, capable of analysis and deduction, was for research. The 3D Printer transformed research results into physical objects.
With these two things, even without Shinobi talent or any relation to Otsutsuki Kaguya's family, Ryuji could reach the pinnacle.
After all, the source of power in this world, Chakra, was originally the fruit of the God Tree.
And the God Tree was a biological entity created by the Otsutsuki Clan through technological research.
If others could research such a thing, then there was no reason he, possessing the Observation Device, couldn't.
Regarding the nature of Chakra... He had been researching it since obtaining the Observation Device and hadn't stopped until now.
Although not fully understood, some of the data parsed over these five years had greatly benefited Ryuji, leading to many research achievements.
—Artificial Soul!
This was one of the countless achievements gained from researching the nature of Chakra.
And now, Ryuji was going to recreate the Third Kazekage.
The body was modified into a puppet?
Then make another identical body.
The soul and consciousness were dead?
Then create another soul.
Of course, Ryuji was not the Third Kazekage. He didn't have the Third's rich combat experience, administrative experience in governing the village, or mastery of a vast number of Ninjutsu and secret techniques... Naturally, he couldn't create a soul that was exactly the same.
But he could make a convincing imitation.
Soon, the Third Kazekage's body was completed.
From the inside out, from body strength to appearance and height, it was not a bit different, not a bit more, not a bit less.
Exactly, perfectly identical.
"Next is creating the soul."
Ryuji turned to look at the other side. With a flick of his left hand, five Chakra Threads shot out, connecting to the Third Kazekage human puppet lying under the Observation Device.
Immediately, the puppet stood upright and floated over.
"I need a bit of your Chakra."
Ryuji formed hand seals. The human puppet, under his control, extended its right hand to the port of the sealed box, continuously sending refined Chakra inside.
"That should be enough!"
About ten minutes later, estimating the amount of Chakra transferred, Ryuji stopped.
He closed the port on the sealed box, then went to the computer and input the composition formulas and related data for the artificial soul.
Artificial souls were far more difficult than artificial bodies.
Ignoring compatibility, Kekkei Genkai, and physical constitution, creating a body was merely a complex combination formula of over sixty elements.
But artificial souls were different.
Artificial souls were the result of research based on the principle that Chakra can carry human consciousness, combined with the principles of various clone techniques that can give rise to independent personalities and wills.
This process involved over thirty-six thousand experiments, including many elements not present in the periodic table and transformation laws corresponding to physical laws, which Ryuji named 'spiritual laws', forming a formula with over a hundred and twenty thousand combination variations.
Using the Chakra refined from the human puppet, which belonged to the Third Kazekage, and then using that Chakra to perform a tangible clone technique to give birth to an independent personality and will.
Finally, using Chakra to carry consciousness, then performing minute operations and adjustments on the chakra, setting up layer upon layer of instructions so dense that even a glance made him dizzy, transforming it into the desired final form.
When all settings were finalized and confirmed error-free, Ryuji pressed the start button.
Immediately, the 3D Printer began operating.
The light pens on the console shone on the created body, penetrating the surface to directly 'paint' the soul inside the body.
The entire process took less than ten seconds.
In fact, creating an artificial soul was far more difficult than imagined.
It required complex and advanced technological processes, over a hundred thousand complex procedures... Without the 3D Printer, even with the manufacturing method for an artificial soul, it couldn't be created.
This was the terrifying aspect of the 3D Printer.
It allowed Ryuji to ignore the world's technological level and manufacture those advanced technologies.
"Like those clone techniques, the artificial soul needs a continuous supply of Chakra to maintain its existence. But if the soul perfectly fuses with the body, then it can refine Chakra on its own and exist permanently."
Ryuji looked at the still-unconscious Third Kazekage and placed him on the Observation Device for examination.
The examination results showed that the target soul and body were integrating very smoothly. Awakening was estimated in about half an hour.
"Hmm, about as expected." Ryuji nodded in satisfaction. "The artificial soul was created using the Third Kazekage's Chakra and independent consciousness. The body is also identical to the original. They have perfect compatibility. This result is only natural."
Afterwards, Ryuji had the puppet dress the Third Kazekage and move him aside.
He himself then took out the crashed mechanical bird.
This mechanical bird was a mechanical beast recorded in the 'Mozi', capable of independent flight.
Ryuji built it based on the recorded manufacturing method and then modified it by combining it with the puppet techniques of the Shinobi World.
He inscribed Lightning Release Nature Transformation seals inside the mechanical bird, placed Chakra Storage Scrolls, and installed conductive focusing tubes for emission.
By releasing the Chakra from the scrolls, the Ninjutsu seals would convert the Chakra into Lightning Release, then eject it through the conductive focusing tubes, forming a laser cannon.
Ryuji wanted to make further modifications to the mechanical bird, so he didn't give it to Aka for repairs, only giving her Gin and those Scarabs.
"The laser cannon's power is indeed great, but its function is too singular. Plus, there's the issue of elemental advantages and disadvantages. More diversified attacks are needed."
Ryuji added Nature Transformation seals for the other four elements inside the mechanical bird. Then, using Pakura's blood, he linked the Wind and Fire transformation seals to create a Scorch Release Ninjutsu seal.
Finally, because the internal space of the mechanical bird was limited, Ryuji replaced the egg-sized conductive focusing tube with one the size of a pinky finger.
The freed-up space was used to add five more emission tubes.
Four tubes for other elements, and one tube for Scorch Release.
"Although reducing the emission tube caliber sacrifices power, the stronger Scorch Release can compensate. It also allows for combined Ninjutsu attacks, increasing possibilities."