This ninja in Naruto is unscientific

Police reforms are in full swing, and Nishikawa Toru has been busy lately.

At three in the morning, the laboratory was still brightly lit.

The air was filled with the smell of ozone and burnt metal.

"Cough cough..."

Nishikawa Tetsu waved his hand, dispelling the white smoke in front of him.

He wore a pair of heavy goggles, his face smeared with soot, but his eyes gleamed with a fanatical light behind the goggles.

On the test bench in front of him lay a disassembled mechanical arm—an upgraded prototype of "Bee Sting".

"The potential energy of a simple spring is still too weak."

Nishikawa Tetsu picked up the tweezers, took a piece of copper coil that had melted and deformed, and muttered to himself:

"Although the initial velocity can reach supersonic speeds, its penetrating power will be greatly reduced when facing Jonin-level defensive ninjutsu, such as Earth Release: Earth Wall or Water Release: Water Wall. I need stronger kinetic energy."

He turned around, walked to the blackboard, picked up the chalk, and drew a circle among the densely packed formulas.

[Lorentz Force] + [Lightning Release Chakra Nature Transformation] = [Handheld Electromagnetic Railgun], which is the ultimate individual weapon he has been conceiving for a long time.

Large coil devices that require assistance to charge are too bulky. In actual combat, the enemy will not give you time to set up a turret, so they must miniaturize them and integrate them into the arm guard.

"The difficulty lies in heat dissipation and reaction force."

Nishikawa Tetsu looked at his somewhat thin arms.

If an electromagnetic cannon were forcibly fired from his arm, the enormous recoil would instantly shatter his ulna and radius, while the intense heat would cook his arm.

"Since the body can't withstand it, then use an exoskeleton."

Nishikawa Tetsu walked to another workbench and lifted the dust cover on it.

A semi-covering exoskeleton made of lightweight chakra-conducting metal was revealed.

It's not just an arm brace; it extends to the shoulders and even connects to the spinal support frame on the back.

"Combining the principles of the Iwa ninja's 'Light and Heavy Rock Technique,' an anti-gravity formula is inscribed inside the skeleton to reduce weight, and then a cooling circuit is constructed using sealing techniques..."

Nishikawa Tetsu picked up the welding torch, his chakra transforming into blue flames, and began to inscribe a technique on the intricate metal part.

Three hours later.

"Click".

With the last part assembled, the brand-new "Bee Sting 2.0" was born.

It has a matte gray-black finish, a streamlined shape that fits the arm, two parallel guide rails on both sides of the arm guard, tiny blue crystals embedded inside, and a spinal support on the back that connects to the chakra energy storage core at the waist.

"Wearable testing".

Nishikawa Tetsu took a deep breath, put the exoskeleton on his left arm, and fastened the buckle.

"Buzz—"

As the energy storage core was activated, blue chakra flowed into the arm guard along the spinal support. In that instant, Nishikawa Tetsu felt his left arm filled with explosive power, but this power was perfectly contained by the exoskeleton.

"Cooling circuit is normal... Magnetic field confinement is normal."

Nishikawa Tetsu walked to the shooting range at the end of the laboratory.

Fifty meters away, there were three stacked high-strength alloy steel plates, each ten centimeters thick, which were used as targets to test the defensive capabilities of A-rank ninjutsu.

Nishikawa Tetsu raised his left arm, palm facing up.

He took out a specially made coin from his ninja tool pouch—refined from high-purity iron ore from the Land of Lightning, mixed with chakra metal, streamlined in shape, and engraved with wind release runes to reduce air resistance.

"Reload."

The coin fell between two rails and was suspended in mid-air by the magnetic field.

"Lightning Release Chakra Injection... Voltage Amplification... Lock-on."

Nishikawa Tetsu's eyes turned cold.

At that moment, he was no longer a ninja with average chakra levels, but a human-shaped artillery platform.

"emission!"

"boom!!!"

It wasn't the muffled thud of a gunpowder explosion, but a sharp, ear-piercing blast—the shockwave generated when an object breaks the sound barrier in an instant.

A dazzling orange-blue beam of light instantly pierced through the dimly lit laboratory.

The air is ionized, leaving behind a twisted vacuum channel.

"when--!!!"

The distant target emitted a mournful metallic wail.

Nishikawa Tetsu felt his left arm jolt backward, and the hydraulic buffer device of the exoskeleton was compressed to its limit in an instant, emitting a hissing sound like it was deflated, transmitting the huge recoil force to the ground, and cracks appeared on the specially made floor under his feet.

The smoke and dust cleared.

Nishikawa Tetsu stepped forward to inspect the results of the battle.

The three layers of alloy steel plates were completely pierced.

The cut was smooth as a mirror, a trace of the metal vaporizing and solidifying under instantaneous high temperature.

Even the concrete wall behind the steel plate was punched into a bottomless black hole, with radial cracks all around.

"Initial velocity...6 times the speed of sound."

Nishikawa Tetsu looked at the speedometer in his hand, a satisfied smile curving his lips.

"Within this distance, apart from Flying Thunder God and Kamui, there is no physical means to dodge it. Even Susanoo's rib defense would shatter in the face of point-to-point penetrating power."

This is the power of science.

If the kinetic energy is large enough, even a brick can fly into the sky.

"but……"

Nishikawa Tetsu glanced at the cooling vents on his arm guard that were emitting white smoke, the energy bars on his energy belt that had instantly lost more than half their capacity, and the throbbing pain in his arm.

"One shot, one kill, but only one shot, and the cooldown is as long as thirty seconds. If you use it too many times, your arm will be ruined."

It's enough as a trump card, but not enough for conventional warfare.

"We have the attack, but we also need defense."

Nishikawa Tetsu returned to the lab bench and presented another solution.

He inscribed a circular array of spells on the palm of the arm guard.

"Now that I've mastered the principles of electromagnetism, besides launching attacks, can I use magnetic fields for defense?"

The Third Kazekage of Sunagakure possessed "Magnet Release," which allowed him to manipulate iron sand.

Although Nishikawa Tetsu doesn't have that kind of bloodline limit, he can simulate it.

"A current-carrying conductor will experience a force in a magnetic field."

Nishikawa Tetsu picked up an ordinary kunai and threw it into the air.

Then he raised his left hand, palm facing the kunai, and suddenly released chakra.

"Magnetic repulsion field - open!"

"Sizzle!"

An invisible, powerful magnetic field erupted from the palm of the arm guard.

The kunai in the air is made of iron. The moment it enters the range of a strong magnetic field, eddy currents are generated due to electromagnetic induction, which in turn generates a reverse magnetic field.

"Ding!"

The kunai, which was originally falling straight down, seemed to hit an invisible wall. It bounced off ten centimeters away from Nishikawa Tetsu's palm, spun around, and flew out, embedding itself in the ceiling.

"That's actually true."

A glint of light flashed in Nishikawa Tetsu's eyes. He was somewhat excited, not expecting that such a simple principle had remained undiscovered until now.

"While I can't deflect all objects like Shinra Tensei, I now have absolute defensive power against the vast majority of metal ninja tools in the ninja world—shuriken, kunai, senbon, and even samurai swords."

This is what he defined as "pseudo-magnetic escape".

If he has enough chakra, he can even control all the metal weapons around him, just like Magneto, and use them to attack the enemy.

"call……"

Nishikawa Tetsu removed his slightly hot exoskeleton, his back soaked with sweat as if he had been pulled out of the water.

Even with the cheat code, operating these sophisticated instruments still consumes a huge amount of mental energy.

He walked to the mirror and looked at the slightly pale boy with dark circles under his eyes.

He has no Sage Body, no Sharingan, no bloodline limit, and is not a descendant of the Otsutsuki clan.

But he touched the cold mechanical arm guard, his eyes filled with confidence.

"In this world where bloodline is everything, I will use my brain to forge a path through sheer force."

Nishikawa Tetsu picked up a bottle of nutritional supplement from the table and drank it all in one gulp.

"Next, I should consider how to expand the capacity of the 'Chakra Storage Belt'... Perhaps I should go find Lady Tsunade and ask her about the principles of the Yin Seal? But Lady Tsunade is currently grieving, so I'd better not disturb her lest I get beaten up!"

He packed up his equipment and walked out of the laboratory.

It was early morning in Konoha.

Sunlight streamed down the corridor as Nishikawa Tetsu stretched, his joints cracking.

He's a little better today than he was yesterday.

that's enough.