Chapter 37

Over the next week, Uchiha Yan was so busy that he barely had time to touch the ground.

Either he stayed at Kushina's house, burying himself in the profound mysteries of Sealing Jutsu while discussing the subsequent Medical Talismans with Tsunade.

Or he holed up in the laboratory at his own home, stubbornly poring over samples of Kushina Uzumaki's blood.

At the same time, he established ties with the Nara Clan and contacted several other medicinal-material merchants. The first batch of medicinal materials was sold successfully.

He also signed long-term secret-medicine supply contracts with the Ino–Shika–Cho Trio and the Sarutobi Clan.

They mainly ordered the two kinds of Body-Tempering Pills and the delicious Military Ration Pills.

The demand was anything but small.

Today, the Uchiha Secret Medicine Shop at Uchiha Yan's home officially opened.

He had originally wanted to avoid the bustle, but his parents had forcibly dragged him along. On top of that, Mikoto and Kushina had both clamored to see the excitement, so he had no choice but to bring the two girls over to show their support.

"Wow! There are people everywhere!"

"Look at that huge line of people buying things! Yan, your family is going to make a fortune!"

Kushina leaned over the second-floor railing and looked down at the tightly packed crowd below, unable to stop herself from crying out.

Uchiha Yan smiled faintly. "Whether I make money or not doesn't matter to me. It makes no difference whether I earn more or less."

"Ugh... Is this what you call showing off? Heehee!"

Seeing him act like that, Kushina couldn't help reaching out to put an arm around his shoulders and teasing him affectionately.

Mikoto watched from the side, her face showing no particular reaction.

She was already used to it.

She had run into Kushina being lovey-dovey with Yan more than once during this period and had long since stopped taking it seriously.

In Mikoto's eyes, Uchiha Yan was simply too dazzling. A man like him could not possibly belong to her alone.

Having Kushina share the burden with her was not necessarily a bad thing.

"Hm?"

Uchiha Yan suddenly sensed a strange gaze fixed on him and Kushina.

He turned his head in the direction of the feeling.

At a glance, he spotted a blond boy with a sunny, handsome face. At that moment, he was looking at the two of them with a dejected expression.

"Minato Namikaze?"

Uchiha Yan immediately recognized him.

He smiled at Minato and gave him a polite nod.

Minato was visibly stunned for a moment.

Then he politely returned the nod.

After giving Kushina one last glance, Minato withdrew his gaze, grabbed a bottle of Military Ration Pills and a small bottle of Body-Tempering Elixir, then squeezed through the crowd and hurried away.

So this is the person you've chosen, Kushina?

He really is quite outstanding.

I was too stupid. My foolish actions made us misunderstand each other again and again, and I ended up losing you.

I hope you can be happy.

If he ever dares bully you, I absolutely won't forgive him!

On the way back, Minato silently swore this oath in his heart.

At the same time, he made up his mind to train even harder under his master from then on, devoting more of his energy to becoming stronger.

He knew better than anyone how cruel the Ninja World was.

Only with sufficient strength could he firmly seize his opportunities when they came in the future.

And he would also be able to protect the family and friends around him.

Three months later.

In the underground laboratory beneath Yan's home.

[After conducting a great deal of experimentation and observation, you completely unraveled the mysteries of the Uzumaki Bloodline. Combining the essence of the Innate Art and the Sharingan Cultivation Technique, you suddenly attained enlightenment and created the Uzumaki Sage Body Cultivation Method and the Bloodline Technique: Kagura's Mind's Eye Cultivation Method.]

[Uzumaki Sage Body Cultivation Method]: Use a drop of Uzumaki clan blood as a primer. Through cultivation, gradually strengthen the power of the bloodline and improve vitality. Once cultivated to mastery, you can obtain the complete Uzumaki Sage Body, gaining astonishing vitality and a longer lifespan.

[Bloodline Technique: Mind's Eye of the Kagura]: Likewise using Uzumaki blood as a primer, gradually master the Mind's Eye of the Kagura through cultivation. Practicing it together with the Uzumaki Sage Body Cultivation Method produces better results, and those who possess the Uzumaki Bloodline can also use this method to awaken the Mind's Eye of the Kagura.

"Hahaha! I finally did it!"

Feeling the two complete techniques he had fully deduced in his mind, Uchiha Yan threw back his head and laughed.

"It wasn't easy! It took me three whole months from start to finish, but at least all that effort wasn't wasted."

As he digested the contents of these two techniques, he felt that every bit of his effort had been worthwhile.

He immediately took a drop of Kushina's blood, processed it using a special method, and swallowed it directly.

He sat down cross-legged and began circulating the cultivation method of the Uzumaki Sage Body, directing the chakra within his body to flow.

More than ten minutes later, Uchiha Yan refined the processed drop of blood and condensed it into a bloodline seed.

The seed traveled through a complete Microcosmic Orbit and settled into his heart.

From then on, whenever he circulated the technique, he absorbed and refined natural energy from the outside world through his breathing, slowly nourishing the seed and allowing it to grow bit by bit.

Under normal circumstances, the entire process would take considerable time. The bloodline seed would have to slowly sprout, grow, and finally mature completely.

But Uchiha Yan was different. His constitution was already strong, and his vitality was abundant. On top of that, he practiced the Innate Art and had a massive amount of Innate Qi stored within his body.

He could use his Innate Qi to ripen the process directly.

Once he thought of it, he acted. He immediately mobilized the Innate Qi in his lower dantian, transported it into his heart, and continuously infused the Uzumaki Bloodline Seed.

After absorbing the endless flow of Innate Qi, the Uzumaki Bloodline Seed began to swell wildly.

"Crack, crack—"

In just a few minutes, the seed began to take root and sprout, then rapidly grew larger.

Three hours passed. Uchiha Yan had used up ninety percent of the Innate Qi in his lower dantian before he stopped the infusion.

While circulating the Innate Art to restore the depleted Innate Qi, he observed the Uzumaki Bloodline Seed in his heart.

No, it could no longer be called a seed. It should be called the Bloodline Tree.

The Bloodline Tree absorbed blood and strengthened it every moment, slowly bringing Uchiha Yan's blood closer to the true blood of the Uzumaki Clan.

At the same time, driven by the Uzumaki Sage Body Cultivation Method and the blood's own circulation, the vitality and the information-bearing factors of the Uzumaki constitution contained in the new blood began to seep into the cells throughout Uchiha Yan's body, rapidly transforming his constitution.

His vitality surged along with it.

Even his height shot up by nearly two centimeters in a short period.

As the Uzumaki Sage Body gradually took shape and continued to grow, his constitution would improve even faster, and his body would continue to mature.

For the entire month that followed,

Uchiha Yan devoted most of his time and energy to cultivating the Uzumaki Sage Body, constantly using Innate Qi to accelerate the process.

[You used Innate Qi as nourishment to accelerate the growth of the Uzumaki Sage Body. Your Uzumaki Sage Body has reached perfection, attaining the peak state of Kushina Uzumaki's bloodline.]

[Your Mind's Eye of the Kagura was nourished by the bloodline in return. Its proficiency surged, reaching the perfect level.]

The Uzumaki Sage Body, which would originally have taken several years or even more than a decade to cultivate, had been forcibly reduced to just over a month. He had directly maxed it out.

The Uzumaki Bloodline Tree in Uchiha Yan's chest had completely disappeared.

More precisely, it had completely fused into every corner of his body.

Of course, as long as he activated the technique for cultivating the Uzumaki Sage Body, a phantom of a rotating Bloodline Tree would still appear in the region of his heart, constantly swallowing and exhaling power.

Relying on his perfected Uzumaki Sage Body, the boy's height shot straight up to 1.2 meters.

His physical qualities had also been forcibly raised to the threshold of a taijutsu Jōnin.

The most absurd part was his vitality—it had increased by more than tenfold.

Even something like the Mind's Eye of the Kagura had been fully cultivated ahead of schedule.

"What a pity. Kushina's bloodline purity is only so-so. For now, this is as far as I can go."

He smacked his lips and began planning his next step.

To advance further, he either had to obtain Uzumaki Clan blood of higher purity and complete his bloodline;

or he could simply create an Uzumaki Bloodline Purification Technique himself and purify and optimize it through his own abilities.

Once he decided to do something, he acted.

Without another word, Uchiha Yan closed his eyes and began deducing and comprehending it.