Spirit Refining and Returning to Emptiness

Half a year later, the five elements of Tsunade's internal organs circulated in harmony, and her cultivation had reached minor mastery.

Doichi Hyuga taught her the Great Five Elements Technique for a full week, but in the end, he could only helplessly set it aside for the time being.

Fortunately, Tsunade's understanding of the human body was profound enough. She could only work hard on the theoretical knowledge first; once she passed the theory, she could slowly grind away at it over time.

As long as she was given time, he believed she could do it. But if she wanted her strength to rise rapidly in the short term, she might as well wash up and sleep! Anything was possible in dreams!

But that meant the pressure fell on Doichi Hyuga.

The future was far too dangerous, and his current strength could not guarantee absolute safety.

Konoha!

Death Forest Laboratory.

Doichi Hyuga lay on the operating table while a Shadow Clone Technique beside him bustled about without pause.

"Original body! Everything is ready. Shall we begin?!"

the Shadow Clone said.

"Begin!"

Doichi Hyuga nodded.

A needle pierced the vein on the back of his hand, and Toneri Otsutsuki's cell extract slowly entered his bloodstream.

As time passed, waves of numbness, itching, and pain assaulted his body.

The Shadow Clone took out a syringe and injected him with an anti-rejection agent.

Doichi Hyuga's expression remained indifferent. This little pain was nothing to him.

He activated his Byakugan, using its ocular power together with the spiritual energy within his body to suppress Toneri's cells.

He forcibly fused Toneri's cell extract into his own cells, locking it firmly within their nuclei; then he slowly devoured and digested it, strengthening his own physique.

After Toneri's cell extract had been stripped of its personal will, its purity reached ninety-seven percent.

This was the finest result of countless experiments, and its purity had already reached the limit.

Four hours later, Doichi Hyuga calmly stepped down from the operating table.

The cellular matter within his body became extraordinarily active, and the genetic chains within his chromosomes began undergoing unknown changes.

He closed his eyes and rested for two hours.

As the unrest in his cells gradually subsided, his eyes suddenly throbbed.

Doichi Hyuga understood. The first fetal movement had begun!

After putting on his blindfold, Doichi Hyuga began meditating and cultivating.

Once the Six-Syllable Breathing Method began, both the amount of natural energy he drew in per breath and the rate at which he absorbed it increased severalfold.

When he stopped using the breathing method and relied only on mental energy to draw upon the natural energy of the outside world, his absorption speed dropped by less than ten percent.

The Sage Body truly made cultivating natural energy twice as effective with half the effort. It was far easier than before.

Propelled by the Sage Body, Doichi Hyuga rapidly entered the Spirit Refining and Returning to Emptiness realm. He had been stuck at the Qi Refining and Transforming into Spirit realm for more than a year, and now he could finally breathe a sigh of relief.

Essence Refining and Transforming into Qi, Qi Refining and Transforming into Spirit, Spirit Refining and Returning to Emptiness, Emptiness Refining and Uniting with the Dao!

Spirit Refining and Returning to Emptiness refined the Primordial Spirit.

The first fetal movement ended nine days later.

The second lasted eighteen days.

The third continued for a full twenty-seven days before ending.

It seemed to have taken longer than Toneri Otsutsuki's three fetal movements!

Doichi Hyuga sighed inwardly as he removed his blindfold.

A pair of beautiful eyes appeared in the mirror.

Their irises were sky-blue, their pupils sky-blue as well. Three golden six-petaled snowflake patterns of different sizes overlapped one another, slowly revolving around the pupils as their core.

"Eh! Something isn't quite right!"

"What is it, original body? What's wrong?"

the Shadow Clone asked.

"I remember Toneri Otsutsuki's Tenseigan having two snowflake patterns in its irises, and they should have been white."

"Perhaps it has something to do with the Byakugan ocular power the original body absorbed from the Giant Tenseigan? The snowflake patterns in the lunar Giant Tenseigan are golden! Could it also be related to the original body's spiritual energy being too high in quality?"

the Shadow Clone guessed.

"Perhaps! Although I've fused with Toneri Otsutsuki's physique, it feels more like devouring and digesting it. After the fusion, my physique is clearly much stronger than Toneri's original cells!"

Doichi Hyuga dispelled the Shadow Clone. With a thought, his Tenseigan reverted to the Byakugan. The Byakugan was crystalline as crystal, becoming even cleaner and brighter.

What he saw was no longer a black-and-white world, but one filled with color.

Toneri Otsutsuki could not deactivate his Tenseigan because those eyes were not original equipment. It was the same principle as Uchiha Madara's Rinnegan; Nagato likewise could not deactivate the Rinnegan.

After familiarizing himself with the Tenseigan's abilities, Doichi Hyuga left the laboratory.

"Where have you been these past few days? Qianyue has been looking for you every day!"

Tsunade crossed her arms and glared at Doichi Hyuga with a resentful expression.

"I had matters to deal with. It couldn't be helped!"

"Your eyes seem different from before?"

Tsunade stared at his eyes. They looked even more clear and crystalline than before.

"Yeah! I've made some progress in cultivation. It may have affected my eyes!"

After all, the Dao Scripture was not to be passed on to a third person. It was better not to speak carelessly about certain things. Some crafty bastards truly did not act like human beings; no amount of caution around them was excessive.

"Daddy! Daddy! You're finally back!"

Upon hearing Doichi Hyuga's voice, Qianyue came running out. She leaped into his arms and planted several loud kisses on him.

"Haha! Has Qianyue been a good girl?"

Doichi Hyuga gave the little girl a big kiss on the cheek and laughed happily.

"Mhm, mhm, mhm!"

Qianyue wrapped her arms around Doichi Hyuga's neck and nodded repeatedly.

"How has your studying been lately?"

Doichi Hyuga turned to Tsunade.

"Not bad! I've gained a preliminary understanding of the fundamental composition of the world. It's just that some of the terminology is too obscure, making it hard to understand what it means!"

Ever since Tsunade began studying the knowledge recorded on the Dao Scripture scrolls, she had always felt as though her brain had grown.

"That can't be helped. If it were written too plainly, one scroll wouldn't be enough. Even ten million words wouldn't be enough to explain it all clearly in straightforward language. If there's anything you don't understand, I'll give you private tutoring tonight!"

If the Dao Scripture were written too plainly, it would be easy for the crafty natives of this world to steal and learn it.

Upon hearing the word "tonight," Tsunade's face flushed red, and she shot him a fierce glare.

The moment Tsunade made that little expression, she became incomparably alluring and lit up the entire room. Doichi Hyuga could barely hold himself back; he wanted to start their tutoring session immediately.

Heh. This bad woman was disturbing my Dao heart. She was truly damn... captivating!

After dinner, Teacher Doichi began tutoring Tsunade.

An hour later, the two moved to the bedroom to continue their tutoring.

Shizune hurriedly picked up Qianyue and coaxed her to sleep.

Doichi Hyuga won three battles in the Third Shinobi World War, utterly defeating Tsunade until she cast aside her armor and raised her hands in surrender.

Perhaps because they had not seen each other for too long, Tsunade's fighting spirit was high tonight. One new tactic that she had always shyly refused was successfully unlocked, and she also learned new knowledge from Teacher Doichi.

Tsunade could personally feel that Teacher Doichi had grown stronger again.

"I can't do this anymore! Don't fight anymore, I want to sleep!"

Just as Doichi Hyuga was about to begin a new round of conquest, Tsunade sternly refused him.

Always passing out made Tsunade feel ashamed, humiliated, and like a failure.

"More exercise helps improve sleep quality!"

Teacher Doichi spoke with righteous conviction as his two wings advanced, once again laying siege and claiming territory.

"Stop! Stop! Can we talk for a while? Let me rest first!"

Tsunade's eyes were misty, her voice weak, carrying a hint of pleading.