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*****
"Why are your pants halfway down? Don't tell me you wet the bed?"
Ximen Zhen struggled to sit up, but Sakura easily pushed him back down on the bed with just one hand.
He wanted to say something, but instead, he was met with her warm embrace.
"Don't move. It's my turn to take care of you now."
"You must have suffered a lot alone in Sunagakure… I'm sorry I couldn't bring you back sooner."
"But it's okay now. I'm here!"
Sakura looked at Ximen Zhen's skin, now roughened by wind and sand, and wiped away tears of joy from the corners of her eyes. She gently adjusted his clothes.
As for any unpleasant smells on Ximen Zhen, they had long been masked by the strong scent of alcohol surrounding them.
At last, Ximen Zhen began to piece together what had happened today—it really was all the alcohol's fault.
Still, he had to admit…
Now that he possessed chakra of sufficiently strong Yang nature, he was no longer afraid of prolonged battles.
In contrast, the Sakura who could normally punch enemies across a battlefield now felt as fragile as a leaf.
Maybe this was Sakura's version of gentleness?
After a long while, once Sakura had drifted into deep sleep, Ximen Zhen held her close and closed his eyes, shifting his focus to something far more important.
In the simulation, Sakura had spent an entire year explaining to him in detail how all of Tsunade's S-rank jutsu worked.
Now, Ximen Zhen's task was to review every detail thoroughly to ensure he didn't overlook a thing.
The core of Tsunade's jutsu system was the Yin Seal—a sealing technique placed on the forehead, capable of storing chakra that was refined but not immediately needed.
By fine-tuning the Yin Seal, its wielder could accelerate healing, enhance strength, and increase speed even in a normal state.
Ximen Zhen had good reason to believe that Tsunade had developed this technique in an attempt to replicate the combat efficiency of Hashirama Senju's Sage Body.
The Yin Seal also had another important function—it could elevate the body's functions to their peak and even grant an effect akin to eternal youth.
Though Ximen Zhen was still young and didn't need such benefits yet, he was certain that no kunoichi in the world would reject a technique like this.
Unfortunately, very few people could actually learn it.
However, Ximen Zhen could use his talent transfer ability to give those around him a chance to master it as well.
Once the Yin Seal is released, the stored chakra is unleashed, allowing the user to perform ultra-high-level jutsu that they would normally hesitate to use.
For example, Tsunade could summon a slug the size of a four- or five-story building, and use its medical ninjutsu to heal the entire village's injured.
But the most important function of the Yin Seal: Release was that it supported the subsequent techniques—Byakugō no Jutsu and Creation Rebirth.
Once Byakugō no Jutsu was activated, curse marks would cover the body, which automatically consumed chakra to heal the user, allowing them to ignore almost any injury.
As for Creation Rebirth, it consumed cellular lifespan to instantly heal even fatal wounds. Even if bisected, the body could regenerate.
However, Creation Rebirth required the user to form hand seals, which was likely its only weakness.
Having understood Tsunade's entire jutsu system, Ximen Zhen couldn't help but find it fascinating.
Even though he hadn't met Tsunade yet, he had already mastered all her techniques.
He wondered—what kind of expression would Tsunade have when she realized he had already learned the Yin Seal?
Ximen Zhen was curious. He wasn't afraid of clashing with her either, since he could always test things out in the simulation first.
As for what he had to do next—it went without saying.
He needed to cultivate the Yin Seal!
Ever since acquiring the simulator, Ximen Zhen had been obsessed with this jutsu.
Mastering it would greatly reduce his survival pressure. After a few months of storing chakra, he might be able to unleash power on par with Kage-level fighters.
At that point, no one would be able to toy with his fate so easily.
But for now, there was still one small problem—Ximen Zhen couldn't place the Yin Seal on his forehead.
Because if a rhombus mark appeared there, it would be like announcing to the world that something was off about him.
Right now, Ximen Zhen didn't want to fall out with Konoha yet. He still needed to lay low and grow stronger until the Konoha Crush Plan began.
So he decided to move the Yin Seal mark to his chest. As long as he wore an extra layer of dark inner clothing, he could avoid most trouble in daily life.
However, relocating the Yin Seal wasn't easy. Even Tsunade herself would have trouble doing it, as it involved an entire array of sealing formulas and their placement.
The time and effort required was something no ordinary ninja could endure.
Fortunately, the simulated version of Ximen Zhen had enough time and stamina to research it. In fact, he had already sacrificed more than one simulation for this purpose.
On top of that, he inherited Chiyo's legacy. Chiyo was also a master of medical and sealing techniques—her skills weren't much inferior to Tsunade's.
With all of these advantages stacked together, Ximen Zhen finally had the confidence to give it a shot.
And even if he failed, it didn't matter. He could just start another simulation—he still had three tries left.
Without hesitation, he took off his clothes, created a shadow clone, and began etching the sealing formula on both his chest and back using chakra, working in tandem with his clone.
An entire hour passed.
With a hand seal, all the seals across Ximen Zhen's body lit up.
The seal began absorbing his chakra, then rapidly contracted toward his chest. Finally, with a soft shout from Ximen Zhen, a rhombus-shaped mark condensed there.
Success?
Before he could celebrate, the rhombus seal exploded the next second, blasting Ximen Zhen into a wall.
He grimaced in pain, then pulled himself out of the wall, stretched a bit, and let a smile creep onto his lips.
That wasn't a failure in theory—just a misstep in balancing the chakra distribution.
This kind of failure only required further attempts.
So, Ximen Zhen set a small goal: to keep going until dawn.
And if he failed again, he would solve it in the simulation.
Time ticked by as Ximen Zhen tried again and again—seven or eight times in total.
Finally, when the morning sun spilled through the window and lit up his bedroom, a flawless rhombus seal gleamed quietly on his chest, like a jewel.
Ximen Zhen collapsed weakly onto the bed, feeling the chakra inside his body slowly flow into the Yin Seal. He clenched his fists.
If gaining the simulator was the first turning point in his life, then mastering the Yin Seal marked the true beginning of his journey toward becoming a powerhouse.
Just as he was about to close his eyes and rest, a familiar, loud voice rang out from above:
"Ah Zhen! What happened to you? Why are you hurt?"
(End of Chapter)