Emotional Experiments, Human Experiments!

"What did you say? You wanted death-row prisoners, the kind guilty of heinous crimes, the kind no one would pity no matter what evil was done to them?"

Hiruzen Sarutobi looked oddly at the teenage boy before him. Did he even know what he was saying?

"What? After being Hokage for so long, did you really come to believe that human experimentation was unforgivable?"

Uchiha Yansheng spoke unhurriedly.

For an instant, Hiruzen Sarutobi seemed to see the shadow of his own teacher in Uchiha Yansheng.

If Tobirama Senju knew what Hiruzen Sarutobi was thinking right now, he would probably die with his eyes wide open.

"No, it's just that I once had a disciple who became obsessed with human experimentation..."

Hiruzen Sarutobi's old habit flared up again, and he was about to lecture Uchiha Yansheng.

But clearly, Uchiha Yansheng did not give a damn.

"I know, Orochimaru! Back then, because of a moment of softheartedness, you let him leave Konoha."

"But honestly, I'd say this was your own fault!"

"Who told you to let Orochimaru get involved with Danzo? What kind of person Danzo is, you didn't know?"

"From the moment you let Orochimaru come into contact with Danzo, he probably already understood what his fate would be. He was quite a rare smart man."

"Seriously, it's not as if Tobirama Senju never conducted human experiments. Why are you talking to me about Orochimaru...?"

Before Hiruzen Sarutobi could finish, Uchiha Yansheng's string of complaints naturally cut him off and dredged up painful memories.

As Hokage, of course he knew why Orochimaru had left Konoha Village.

"Perhaps... I really am old!"

At that moment, Hiruzen Sarutobi seemed to have lost his spirit. He looked exceptionally aged.

"Hey, old man. Stop playing dead. Hurry up and get me a few death-row prisoners, the truly heinous kind. Don't bother with anyone whose crimes are too minor."

"If you don't have any here, coordinate with other ninja villages or the daimyos of other countries."

Uchiha Yansheng's voice seemed like an invisible blade, slicing through Hiruzen Sarutobi's sorrowful facade.

Before those Three-Tomoe Sharingan, blue light flickering deep within their pupils, all of his disguises seemed not to exist.

At that moment, Hiruzen Sarutobi actually felt fear toward the boy before him and could not help asking:

"Yansheng, what is your dream? To learn everyone's ninjutsu in the world?"

Hearing that question, Uchiha Yansheng roughly understood what Hiruzen Sarutobi was thinking.

"That's Orochimaru's dream. I'm actually a rather peaceful person. As for my dream..."

"It's simple. As long as no one can harm me or anything I care about around me, that's enough."

After hearing this, Hiruzen Sarutobi pondered for a moment, then suddenly smiled faintly and praised, "That really is a fine dream."

"Thank you for being willing to tell me what is in your heart. I will arrange for the heinous death-row prisoners you want to be sent to the Uchiha clan compound."

Those death-row prisoners were delivered very quickly, along with a document detailing the crimes each of them had committed.

As for whether it was true or not... Uchiha Yansheng did not care. In a world like this, finding a few scum was probably far too easy.

After finding a place to house those scum, Uchiha Yansheng experimented on them for several days before ending those inconclusive experiments.

In his previous life, he had not been a doctor, so he did not know much about medicine.

Although he had specifically studied Medical Ninjutsu in this world as well, he had mainly learned chakra control and some Medical Ninjutsu. He had not grasped much about the human body at all.

Therefore, after several days, Uchiha Yansheng once again came to Kushina Uzumaki to study.

Yes, Kushina Uzumaki. She had originally gone out to capture Danzo, but she could never find him and could only return.

Who knew what scheme Danzo was plotting? He was clearly hiding within Konoha Village, yet no one could find him.

Using the Nine-Tails chakra's malicious-intent detection, Uchiha Yansheng had found someone harboring immense malice toward him.

Although that person might have been Danzo Shimura, Uchiha Yansheng had no interest in paying him any attention.

He was merely an Impure World Reincarnation body. What trouble could he possibly cause?

If he went after him himself, there was a high chance it would be a trap.

Ordinary traps would have been one thing, but anything Danzo Shimura set up was bound to be somewhat dangerous. Better let someone else deal with it.

Ignoring those trivial matters, Uchiha Yansheng began following Kushina Uzumaki to learn some Medical Ninjutsu.

Over the past few years, because of Minato Namikaze, Kushina Uzumaki had often communicated with Tsunade through Slug and learned quite a bit of Medical Ninjutsu. Occasionally, she would even use the Transformation Technique to help out at Konoha Hospital.

That was why, despite Minato Namikaze having been bedridden for so long, his physical condition had not declined in the slightest.

Women really could endure any hardship for the ones they loved.

Other than consulting records, the best choice for Uchiha Yansheng to understand the relationship between hormones secreted by the human body and emotions was to ask Kushina Uzumaki.

Time passed bit by bit.

In the blink of an eye, several months had gone by.

That day, after leaving Kushina Uzumaki's place, Uchiha Yansheng was considering the specific next steps of his emotional experiments when he happened to glance up at the map of Konoha on the wall.

"Huh, that Pot Kage actually changed positions. I thought he was fixed there for good."

"He hasn't crossed the warning line yet. Ignore him."

Uchiha Yansheng stared curiously for a while, only to find that Danzo Shimura had returned to his original position again and was standing completely still.

"It's definitely a trap! Only an idiot would go."

After casually mocking him, Uchiha Yansheng returned to the laboratory.

"Emotional experiment, first stage—rage!"

As Uchiha Yansheng spoke, he took out an injection and administered it to the unlucky man before him.

Very soon, as the drug entered his body, the death-row prisoner Uchiha Yansheng had kept for several months developed an angry look in his eyes.

The first experiment was declared a success. It seemed a little too easy.

After waiting for the drug to wear off, Uchiha Yansheng proceeded to test joy, sorrow, worry, and other emotions one after another.

Overall, the experiments were successful. But some finer details could not be achieved through drugs alone and required special catalysts.

The first to take the stage was genjutsu.

Although Itachi Uchiha had already concluded that genjutsu was not particularly useful for awakening the Sharingan.

For ordinary people, however, genjutsu could still easily induce certain specific emotions.

Creating a Shadow Clone, Uchiha Yansheng began observing the hormonal secretion within the test subject's body, as well as changes in his thoughts and soul.

What he needed to do now was recreate the saddest, most despairing moment in a person's life.

But just as he was busy, an incoming fluctuation of chakra snapped Uchiha Yansheng back to his senses, and he instinctively dispelled the Shadow Clone.

He summoned Zero-Two. Judging from the reaction of the Nine-Tails chakra within him, it seemed an enemy had already infiltrated Konoha Village and was still approaching this place.