Impure World Reincarnation

"This ninja's Physical Fitness is quite good, and he seemed to have some resistance to Yang Release Chakra as well." Kenichi Amamiya studied the rising and falling chest before him with great interest.

To get a better look, he had even removed the man's Ribs. Though that meant the man certainly would not live much longer, Kenichi Amamiya did not care.

He had just successfully triggered the cancer in this ninja's lungs. Abnormalities had already begun appearing in the man's body—early signs of cancer.

"Cough, cough, cough." The test subject began coughing. Kenichi Amamiya silently increased the amount he injected, attempting to precisely infuse Yang Release Chakra into the Cancer Cells that had already reached a certain scale.

What were Cancer Cells? They were malignant cells that seized nutrients from other cells to accelerate their own division and growth. At this moment, these Cancer Cells had gained an even more abundant supply of Life Energy.

At a rate almost visible to the naked eye, the Cancer Cells spread much faster. The test subject also began coughing up blood and showing signs of Difficulty Breathing.

"My idea was right. Yang Release Chakra can stimulate the growth of Cancer Cells, artificially creating cancer inside the target's body." Kenichi Amamiya was somewhat delighted. He had preliminary results now.

As long as he could organize and refine the process later, then test its success rate, Kenichi Amamiya could say that he had successfully created a unique Ninjutsu.

"Still, I remember there's a Medical Ninjutsu called the Delicate Illness Extraction Technique. It can extract toxins and such, but that technique should be useless against my Ninjutsu." Kenichi Amamiya stroked his chin.

By now, Kenichi Amamiya could precisely inject Yang Release Chakra into these Cancer Cells, and he discovered that the man's Cancer Cells were already showing signs of metastasis.

If it spread extensively, then in his previous life, that would basically mean booking a spot at the crematorium and waiting to die.

Kenichi Amamiya stitched the man's body back up, then handed him over to the Medical Team at the base, telling them to find a way to treat the unlucky fellow.

Kenichi Amamiya wanted to see whether the ninja world could actually deal with cancer. If it could, then this Ninjutsu would be far less useful. If it could not, then he would possess a Ninjutsu worthy of being classified as a forbidden technique.

"Finished with your experiment?" When Kenichi Amamiya found his teacher, he saw two dead ninjas lying on Orochimaru's operating table.

However, the laboratory was filled with a strange smell, and there was also some dust on the operating table.

Impure World Reincarnation?

Kenichi Amamiya immediately thought of this unique forbidden technique.

"Yes, Teacher. The experiment yielded some results. I've handed that test subject over to the Medical Team and asked them to see whether they can treat him." Kenichi Amamiya feigned complete ignorance as he spoke with great respect.

"Mhm. Don't forget to train your Ninjutsu. That is the means we ninjas rely on to survive." Orochimaru nodded. He had always been someone who delegated authority freely.

Or rather, he did not employ those he doubted, and once he employed someone, he did not doubt them. Overall, he was an excellent leader, though cold-blooded ruthlessness was also one of his traits.

"Yes, Teacher." Kenichi Amamiya nodded. During this period, he had made a plan for himself.

First came Ninjutsu and physical training; those could not be neglected. Next were the tasks assigned by his teacher. Last came researching and perfecting the Cancer Creation Ninjutsu.

After obtaining Hashirama Senju's Sage Body, a vast amount of Yang Release Chakra had appeared within Kenichi Amamiya. The only pity was that he had not gained Wood Release.

That disappointed him somewhat. Wood Release was extremely powerful in the ninja world, and with it, he could capture and study some Tailed Beasts.

At the thought of those Tailed Beasts, each with different abilities yet all tremendously powerful, Kenichi Amamiya nearly drooled. Although they seemed to have little dignity later on, their strength was still quite formidable in essence.

Otherwise, they would not have become a force valued so highly by every ninja village, their status comparable to Nuclear Weapons.

"I have a Ninjutsu I intend to teach you." Orochimaru remained seated steadily in his chair, but the moment he spoke, Kenichi Amamiya felt as though his heart had skipped a beat.

After all, this scene made it impossible for Kenichi Amamiya not to overthink things. Impure World Reincarnation was an immensely powerful forbidden technique. Although it required the summoner's bodily tissue, the ninja world had no cremation customs.

There was no telling how many samples of First's Cells existed here, and Kenichi Amamiya even knew where Second's grave was.

"Teacher, is it Kumogakure's Lightning Release Ninjutsu?" Kenichi Amamiya asked "excitedly." He could not appear too unusual. Based on his strength, he theoretically should not have had access to Konoha's forbidden techniques.

"No. It's another forbidden technique, one that is powerful but also extremely dangerous." Orochimaru casually tossed a scroll to Kenichi Amamiya.

Kenichi Amamiya opened it and took a look. The words Impure World Reincarnation were prominently written on it.

Though he had known it was likely this Ninjutsu, when he truly saw it, Kenichi Amamiya had to admit that his heart was racing. This forbidden technique was indeed extremely powerful.

"What are your thoughts after reading it?" Orochimaru took a sip of tea, then glanced at Kenichi Amamiya. He wanted to see what this disciple he had chosen thought of the forbidden technique.

"It's a very powerful but also somewhat dangerous Ninjutsu. It's highly practical, but once it's used, the trouble it brings will also be immense." Kenichi Amamiya had already finished reading it; after all, it was not very long.

"Why do you say that?" Orochimaru neither agreed nor disagreed.

"Because it can revive the Dead. This is a Ninjutsu that desecrates the dead, and once used, it is bound to provoke the disgust of many people." Kenichi Amamiya felt somewhat helpless. His teacher simply loved asking questions he already knew the answer to.

He did not believe his teacher could fail to see something so obvious to anyone with eyes. This was Orochimaru, after all.

"But it's also extremely powerful. If it can allow those Dead to retain a portion of their original strength, they would make excellent Combat Power, and there would be no need to worry about other issues." Kenichi Amamiya shrugged.

Impure World Reincarnation truly was an exceptionally powerful Ninjutsu. To say nothing else, if First and Second had been summoned with Impure World Reincarnation on the night of the Nine-Tails Attack, how could Nine-Tails have dealt with them?

"Then I'll teach you. Do you dare learn it?" Orochimaru smiled and asked.

"Of course I do!" Kenichi Amamiya nodded immediately. This was a forbidden technique. Only an idiot would refuse to learn it.