Naruto: Clan Simulation and Bloodline Evolution from Scratch

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Yuugao Uzuki? Why is she here?

Ximen Zhen hadn't lost consciousness, so he immediately noticed the system prompt in front of him.

Based on the current timeline, Yuugao Uzuki should still be serving in the Third Hokage's Anbu unit.

That could only mean one thing—she had been sent by the Third Hokage to monitor him.

Ximen Zhen wasn't particularly surprised by this.

He had indeed displayed some suspicious abilities. It was only because he currently held significant value in the eyes of the Third Hokage that his situation remained relatively safe.

But that didn't mean he wanted to draw even more attention from the Hokage.

He had to figure out a way to either dispel Yuugao's suspicions... or find a way to make her leave.

Although Yuugao was a high-quality kunoichi who met the system's criteria, she wasn't someone Ximen Zhen could safely approach at this point.

With that in mind, a thought sparked in his mind.

He immersed himself into the results of his latest simulation, quickly absorbing the knowledge and experience accumulated during the second run.

To his surprise, he discovered that the amount of ninjutsu knowledge he had acquired in the simulation was far greater than he expected.

Apparently, acting as a great writer in the post-war era of the shinobi world meant he could move around freely—so long as he avoided classified areas, there were no major restrictions.

Did this mean... he could start experimenting with new powers and technologies that only appeared during the Boruto era?

Among the many insights he found, Ximen Zhen discovered a clever solution to his current problem.

For instance, during his attempts to become a medical ninja, he had learned that some shinobi exhibited symptoms similar to post-traumatic stress.

While asleep, these individuals would first display abnormal spiritual fluctuations, which would then cause their chakra to flow irregularly—or even reverse flow—within their bodies, often resulting in mild to severe internal injuries.

Conveniently, Ximen Zhen now matched all of those conditions.

While enduring the pain of his bloodline awakening, he deliberately reversed his chakra flow, and before long, his face had turned deathly pale and his breathing had weakened dramatically.

Yuugao Uzuki, wearing her ram-patterned mask, was alarmed. She quickly gathered chakra in her palm and pressed it against his chest to check his physical condition.

Although Yuugao was only a Tokubetsu Jōnin, she had some foundational knowledge of medical ninjutsu—she had worked in related roles during the Fourth Great Ninja War.

Until now, she hadn't understood why the Hokage had assigned her to this particular task. But now it all started to make sense.

As her chakra entered Ximen Zhen's body, she immediately detected the reversed chakra flow.

She first helped lay him flat, then carefully injected her chakra into his meridians, attempting to stabilize the chaotic circulation within him.

Yuugao's approach caught Ximen Zhen by surprise. He had expected her to take him to Konoha Hospital.

Then, it dawned on him why she hadn't.

If she personally brought him to the hospital, it would expose the fact that the Hokage had assigned an Anbu to monitor him.

And that's something a competent Anbu agent must absolutely avoid.

Realizing this, Ximen Zhen's heartbeat quickened.

This might be the perfect chance to collect Yuugao Uzuki's pheromones!

As long as he remained in this weakened state, constantly keeping her in contact through chakra exchange, wouldn't she maintain this physical interaction the whole time?

Of course, he had to be careful not to give himself away.

But even if he were suspected, he could just claim he was worried Yuugao might harm him and pretend to remain injured—after all, no one would suspect he was harvesting her pheromones.

Fortune favors the bold—let's do this!

His bloodline awakening soon concluded, and his body stopped trembling violently.

Yuugao let out a breath of relief, realizing that her intervention had worked.

But the reversed chakra flow in Ximen Zhen's body remained extremely stubborn, forcing her to continue treatment.

Time passed quickly—half an hour went by.

Yuugao wasn't entirely free of doubt. A part of her suspected that Ximen Zhen might be faking his injury to drain her chakra.

After all, Anbu protocol dictated that chakra shouldn't be wasted on enemies, civilians—or even teammates—without mission-critical reasons.

But Yuugao had reviewed his background. She knew Ximen Zhen was a clean, innocent youth—a pitiful one at that.

The Hokage's orders were simply to monitor, not to treat Ximen Zhen as a threat.

So Yuugao repressed her suspicions and set a firm mental boundary.

If Ximen Zhen didn't improve in the next ten minutes, she would remove her mask, assume the identity of a civilian, and personally escort him to Konoha Hospital.

But just then, the restless chakra in his body began to calm.

Yuugao exhaled in relief, quietly stood up, and vanished from Ximen Zhen's room.

Moments later, Ximen Zhen opened his eyes. He sat up with a dazed expression, clutched his chest and coughed a few times before lying back down with a bitter look on his face.

Naturally, it was all part of his act—to put Yuugao's doubts to rest.

In truth, Ximen Zhen was thrilled to the point of wanting to jump up and laugh out loud.

Because he had successfully completed the collection of Yuugao Uzuki's pheromones!

He had originally believed the one-hour collection period was fixed. But to his surprise, it could actually be shortened!

The key, it seemed, was Yuugao voluntarily injecting chakra into his body.

As a transmigrator, Ximen Zhen knew that chakra in the shinobi world was not just a form of energy for ninjutsu.

It was also a bridge for spiritual connection between individuals—a means to foster mutual understanding and resolve conflicts.

Unfortunately, humanity's obsession with war had long turned it into nothing more than a weapon, forgetting its original connective purpose.

Now that Yuugao Uzuki had been added to his list of simulatable targets, Ximen Zhen was eager to start connecting with her in simulations.

But knowing she was likely still observing him—and that he had already "relapsed" once tonight—Ximen Zhen suppressed his excitement for now.

Yuugao was no Tenten.

He didn't even know if she and Hayate Gekkō were together at this point. Even if they weren't, courting her would be far more difficult than it had been with Tenten.

More importantly, was her talent truly worth pursuing?

After careful thought, Ximen Zhen decided to first review the gains from his second simulation and devise a clear strategy before diving into Yuugao's simulation.

Gradually, sleep overtook him.

From outside the window, Yuugao Uzuki watched until she was certain he had fallen asleep. Then her figure vanished from the shadows of Ximen Zhen's house.

She returned to the Hokage Tower and left behind a report.

It documented all of Ximen Zhen's actions for the day, along with his sudden onset of illness.

The next morning, Hiruzen Sarutobi read Yuugao Uzuki's report.

After finishing it, his expression turned grave.

Ximen Zhen might be seriously ill?

(End of Chapter)