The meeting with Uchiha Obito, filled with subtle barbs, did not cause much of a stir among the top brass of the Land of Whirlpools.

For Uchiha Kei, it was merely the placement of a long-planned piece on a vast strategic chessboard.

Seeds of doubt needed time to ferment, while the development of the Land of Whirlpools itself could not pause for even a moment.

After handling the daily affairs of the Allied Forces General Staff, Uchiha Kei's figure appeared in the building of the R&D Department.

This place was the heart and engine of the entire Land of Whirlpools, forever filled with all kinds of whimsical ideas and heated debates.

The air was permeated with the acrid smell of metal welding, the herbal scent of peculiar potions, and the faint ozone smell produced when Chakra energy collided, mixing into a unique scent that belonged only to this place—the scent of creation.

Uchiha Kei walked through the busy laboratories and finally, in the area of the Lightning Release Application Development Group, saw the teenager sitting alone in a corner, his brows tightly locked.

Uchiha Sasuke.

Uchiha Itachi's younger brother, after graduating from the Ninja Academy, had unexpectedly chosen not to enter the combat sequence of the Military Department, nor had he gone to the Department of Internal Affairs to become an administrator.

Instead, he had resolutely plunged into the R&D Department.

In his own words: "Destruction is instantaneous, while creation is eternal. What I want to master is the power that can truly change the world."

At this moment, this talented teenager was blankly staring at a pile of scattered blueprints and data, his face full of distress and unwillingness.

In front of him stood a special metal target used for testing the power of Ninjutsu, its bullseye covered in scorch marks of varying depths, with traces of high-temperature melting and subsequent solidification at the edges.

"Encountered a bottleneck?"

Uchiha Kei's calm voice sounded from behind.

Sasuke shuddered violently, like a cat startled awake.

He turned his head and, seeing it was Uchiha Kei, relaxed, though his face still carried a hint of stubbornness.

"Brother." He stood up and admitted somewhat reluctantly, "It still doesn't work."

He demonstrated his research results to Uchiha Kei.

He extended his right hand, and in his palm, pale blue Lightning Release Chakra rapidly condensed, emitting a sizzling sound, eventually forming a Lightning Blade about half a meter long with a condensed shape.

This was the result of his improvement on Kakashi's Chidori; its shape was more stable than Chidori, and its power was more concentrated.

Sasuke swung his arm, and the Lightning Blade in his hand drew a sharp arc, precisely cutting into the metal target, leaving a deep incision.

"I have basically solved the problems of shape transformation and power concentration." Sasuke withdrew his Chakra, his tone carrying a hint of pride, but more so confusion.

"However, no matter what I do, I cannot release Lightning Release Chakra from my hand for mid-to-long-range attacks like you do, Brother."

To prove his words, he condensed Lightning Release Chakra again and attempted to throw it like a Shuriken.

However, as soon as that mass of high-energy Chakra left his palm, it became unstable in mid-air.

It flew less than five meters before it exploded with a bang, turning into countless fine electric arcs that dissipated into the air.

"Once Chakra leaves the body, the connection with the meridian system is cut off, and the shape is difficult to maintain. This is a common problem for all nature transformations." Sasuke's voice was a bit low, trapped in a traditional thinking bottleneck.

The common knowledge of the Shinobi World told him that, except for a few special Kekkei Genkais or secret techniques, most Ninjutsu could not achieve true remote guidance.

Uchiha Kei watched him quietly, neither pointing out the problem directly nor teaching any specific Ninjutsu techniques.

For a genius like Sasuke, simply giving the answer was far less valuable than guiding him to find the answer himself.

Looking around, he picked up a horseshoe magnet from an experimental table and grabbed a handful of fine iron sand from a material box.

"Sasuke, come here."

Uchiha Kei scattered the iron sand casually on the desktop, then slowly brought the magnet closer.

A wondrous scene unfolded.

Those originally chaotic iron sand grains, as if controlled by an invisible hand, instantly came to life.

They jumped up one after another, automatically arranging themselves into beautiful arcs, clearly outlining the shape of the invisible force around the magnet.

Sasuke's eyes were instantly attracted.

His Sharingan had activated unconsciously, a single tomoe rotating slowly in his eye socket, carefully observing this magical physical phenomenon.

"Do you see it?" Uchiha Kei's voice carried a guiding tone.

"This piece of iron did not touch the iron sand directly, yet it was able to exert force on them. We call this area that cannot be seen or touched, but can affect specific objects, a field."

"Field?" Sasuke subconsciously repeated this unfamiliar term, his brain starting to run at high speed.

Uchiha Kei removed the magnet, and the iron sand returned to its chaotic state.

He picked up the magnet again and brought it near the iron sand; they were shaped again.

"Around the magnet, there exists a magnetic field." Uchiha Kei continued to explain, "Then, Sasuke, think about another question."

He put the magnet back in its place, his gaze becoming sharp again.

He looked straight into Sasuke's eyes and proposed a revolutionary question that was enough to overturn the cognitive understanding of the Ninja system in this world.

"Have you ever thought that the essence of Lightning Release might not just be that mass of violent, concrete energy in your hand?"

"Could it be that it is also a kind of field?"

"An electromagnetic field that cannot be seen or touched, but actually exists around your body, capable of exerting attractive or repulsive forces on specific objects?"

Boom!

The three words 'electromagnetic field' were like a bolt of creation lightning, splitting the chaos in Sasuke's mind.

At this moment, his genius brain seemed to be connected to a higher-dimensional information database.

Countless overlooked details, countless failed experimental data, and countless fragments of inspiration were rapidly connected, reorganized, and integrated under this brand-new concept of 'field'!

Yes, why must he shape Lightning Release Chakra into the form of a blade or a needle to attack the enemy?

Why couldn't he build an invisible Lightning Release field around himself, just like this magnet?

If he could achieve this, then...

Repulsion! He could use the Lightning Release field to repel all metal Ninja tools approaching him, forming an absolute defense!

Attraction! He could attract Shuriken thrown by the enemy and use them for his own purposes, or even strip their weapons directly from the enemy's Ninja tool pouches!

Manipulation! He could control a large number of metal weapons from a distance, just like controlling his own fingers, launching saturation attacks.

That would be a more efficient and deadly fighting style than a Puppeteer!

Magnetization! He could attach his Chakra to Shuriken, making them magnetic.

After throwing them, he could force a change in the Shuriken's flight trajectory by changing the field around his palm, achieving unbelievable curved attacks!

And also, electromagnetic cannon! If the power of the field were compressed to the extreme and accelerated within a specific track, could he increase the speed of the projectile to a terrifying, unprecedented level that surpassed the limits of human reaction?

Magnetic rail Shuriken, electromagnetic shields, Lightning Release floating cannons...

Countless black technology concepts that only existed in fantasy and transcended this era surged madly in Sasuke's mind like a blowout.

The one-tomoe Sharingan in his eyes, due to extreme excitement and the massive amount of information processing, began to rotate at high speed uncontrollably.

After a slight prick of pain, the outline of a second tomoe clearly emerged.

He had evolved again.

Uchiha Kei looked at the light almost burning in Sasuke's eyes and nodded with satisfaction.

The seed of a future top-tier scientist had been successfully ignited today.

"Brother, I understand!" Sasuke's voice trembled slightly with excitement, and his eyes were filled with fanatical worship when he looked at Uchiha Kei.

"I need authorization, the highest authorization! I need a dedicated team, I need the best Chakra conductor materials, and I need an independent laboratory capable of conducting high-intensity energy experiments!"

"You shall have them all." Uchiha Kei's answer was simple and direct.

"Starting today, the 'Lightning Release Electromagnetic Application Special Research Group' is established. You will serve as the team leader, and all resources of the R&D Department will be unconditionally open to you."