The Kamui vortex in the deepest secret room of the Naka Shrine slowly dissipated, and Qi's figure appeared from within, as if he had never left.

A huge Sealing Jutsu scroll dropped onto the floor behind him with a thud, kicking up a fine circle of dust.

Uchiha Fugaku and Shisui held their breath almost simultaneously, their gazes fixed intently on that scroll.

From the time Qi left to his return, it had been less than an hour, yet he had solved a resource problem that could have strangled the entire Uchiha clan.

Fugaku slowly unclenched his fist, looking at Qi's calm, unruffled face, his heart once again filled with an indescribable shock.

This ability to ignore all of Konoha's blockades and barriers, moving freely like a ghost, had a strategic value that was even more terrifying than an S-rank Ninjutsu.

"The medicinal ingredients are all here." Qi's voice broke the silence in the secret room, concise and to the point.

Shisui stepped forward quickly and untied the scroll, and a rich, complex scent of herbs instantly permeated the air.

The dozens of rare medicinal ingredients on the list, from the core Dragon's Blood Grass to the newly added Snake Saliva Fruit, were all accounted for, and the quality of each one far exceeded the ordinary goods found in Konoha's pharmacies.

Faint red light flowed between the veins of the Dragon's Blood Grass, clearly indicating they had been freshly picked and their medicinal properties were at their peak.

"Qi... how on earth did you do this?" Shisui's voice carried a hint of dryness.

He could not imagine how, in such a short time and without alerting anyone, it was possible to collect such a massive amount of supplies.

This had already exceeded the scope of Ninjutsu; it was more like the power of a deity.

Qi did not answer this question, merely casting his gaze toward the center of the laboratory.

There was no traditional alchemy furnace there; instead, it was a peculiar square barrier device that Fugaku had exchanged from the family treasury using his clan leader authority.

It was made of black Chakra metal, with dense Sealing Jutsu inscribed on its four walls, and a glowing Chakra crystal embedded in its core.

This was a "Chakra Constant Temperature Barrier" that combined Sealing Technique and barrier techniques, capable of precisely controlling the internal temperature within one degree, far more stable and efficient than traditional alchemy methods that relied on flames.

Alchemy, like formulating tactics, was all about controlling variables.

It was just that one controlled human hearts, while the other controlled energy.

Without the slightest hesitation, Qi stepped forward.

He closed his eyes and went over the improved perfect formula in his mind once more.

Every step, every dosage, the order in which each ingredient was added, and even the changes in the molecular structure of the herbs under high heat were simulated billions of times in his mind, until all possibilities pointed to the only outcome: success.

When he opened his eyes again, a flash of scarlet light lit up in his pupils, and his Three-Tomoe Sharingan slowly rotated.

In his vision, the entire world had transformed into the most basic flow of energy particles.

"Let's begin."

With a whisper, his hands formed hand seals at an extremely fast speed, and a stream of pure Chakra was injected into the core crystal of the barrier device.

The air inside the barrier emitted a soft hum, and the temperature began to rise steadily at a speed visible to the naked eye.

On the dial on the side of the device, the needle stopped precisely at the "183 degrees" mark.

This was the optimal temperature for purifying the first batch of auxiliary ingredients, capable of maximizing the retention of their activity while evaporating excess moisture.

Qi's movements were smooth and fluid, full of the aesthetics of modern process management.

Dozens of auxiliary medicinal ingredients were arranged by category on the operation table, each portion weighed with precision instruments, accurate to the milligram.

This made Fugaku and Shisui, who were accustomed to the vague concepts of "a little" or "an appropriate amount" in traditional alchemy, twitch slightly at the corners of their eyes as they watched.

In their eyes, Qi didn't look like he was concocting a secret medicine; it was more like he was conducting a scientific experiment of extreme rigor.

Step one: purification.

The first batch of five herbs with mild properties was added to the barrier, and the high heat instantly evaporated the moisture within them.

Qi's Sharingan stared intently inside the barrier; in his vision, the fibrous structures of the herbs were being broken down, and the active ingredients were precipitating out like glowing dust.

Just at the moment when the impurities were about to mix with the active ingredients, he formed a hand seal with one hand and whispered: "Wind Style: Dust Technique!"

An airflow, so weak it was almost imperceptible, was generated out of thin air inside the barrier, like the most delicate sieve, precisely blowing all the black impurities into a corner, leaving only the purest, pale-green glowing medicinal powder.

Such exquisite Chakra control made even Shisui, a genius known for his precision, feel a sense of inferiority.

He realized that Qi's strength lay not only in that unfathomable Dōjutsu, but also in this absolute mastery of power that delved into every detail.

For the next few hours, Qi was like a tireless precision machine.

Following a specific order, he added one herb after another into it.

Each herb had different properties, and the required temperature, purification method, and timing for fusion were vastly different.

But under Qi's control, everything appeared so orderly.

From 183 degrees to 320 degrees, and then down to 95 degrees, every change in temperature was precise and flawless.

Sharingan remained active the entire time; every boiling of the medicinal liquid within the barrier, every fusion and reaction of the components, was clearly presented to his eyes as if in slow motion.

Where energy was excessive, where fusion was not smooth—he could detect it all instantly.

Then, he would extend a finger, touch the wall of the barrier, and channel a sliver of his own Chakra into it.

This sliver of Chakra was like an omnipotent catalyst.

At times it turned into an invisible stirring rod, accelerating the fusion of medicinal power; at times it became a gentle filter, removing newly generated impurities; at other times it turned into a bridge, guiding two mutually repulsive medicinal powers into a perfect embrace.

Fugaku and Shisui were completely dumbfounded.

They had originally thought that alchemy was a cumbersome process full of smoke, fire, and uncertainty, but they hadn't expected that in Qi's hands, it had turned into a performance of perfect control over energy that was almost like art.

This was no longer alchemy; it was the art of creation.

Time passed second by second, and when the pollen of the final main ingredient, the "Yang Sunflower," was added to the barrier, the medicinal liquid inside the entire barrier instantly transformed from a murky brown into a clear, magnificent color like a ruby.

An indescribable, strange medicinal fragrance seeped out from the gaps in the barrier's Sealing Technique, instantly permeating the entire secret room.

This fragrance seemed to have a life of its own; just inhaling a wisp of it made Fugaku and Shisui feel refreshed, and their fatigue and tension from the past few days were eased significantly.

The Mangekyō Sharingan pattern in Fugaku's eyes even flashed uncontrollably, revealing his inner excitement.

It was a success.

Just at this moment, Qi suddenly pressed his hands together, his Three-Tomoe Sharingan spinning crazily.

"Condense!" Inside the barrier, the ruby-like medicinal liquid surged violently, and all the medicinal power, under the forced compression of Qi's massive mental energy and Chakra, collapsed toward a single point in the center.

The formations on the four walls of the barrier emitted an overwhelmed humming sound, their light flickering on and off.

With a gentle halo of light flashing, all the medicinal liquid in the barrier vanished.

In its place were three round, plump, crystal-clear, blood-red pills that seemed to contain starlight within them, silently floating in the center of the barrier.

In Qi's mind, the cold system prompt sounded right on time.

【Improved Dojutsu Activation Secret Potion (Perfect)】

【Quality: Perfect】

【Effect: Gently and efficiently activates the visual nerves, nourishes and strengthens the source of Dōjutsu power, and promotes the benign evolution of the Uchiha bloodline.】

【Side Effects: None.】

The first batch of miracle medicine capable of changing the fate of the Uchiha was successfully produced.

Qi dispersed the barrier and carefully collected the three pills into a jade bottle.

His complexion was somewhat pale; several hours of continuous, high-intensity mental concentration and precise Chakra manipulation were no small drain on him.

Fugaku and Shisui immediately gathered around, both of their breathing becoming somewhat rapid.

They looked at the three radiant pills in the jade bottle, their eyes filled with shock and fanaticism.

The theory had become reality.

But what would the actual effect of this pill, which could be called a "miracle," be?

Was it truly, as Qi had said, without any side effects?

Everything had to be verified by someone in person.