Both time-traveled characters ended up as villainous henchmen.

In a clearing in the forest of Konoha Village.

This is the very place where Izumi Nen, Obito, Rin, and others once trained together.

Today, only Izumi Nen and Obito have arrived here.

"what?"

Obito looked at Izumi Nen with a displeased expression, his eyes filled with envy and jealousy as he glanced at the Konoha headband on the other's forehead.

"Didn't you graduate from the Ninja Academy? How come you still have the mind to train with a Ninja Academy student like me?"

Clearly, Izumi Nen's sudden and unannounced graduation from the Ninja Academy two months ago dealt a heavy blow to Obito.

In regular training, this guy wasn't much stronger than him, was he?

Damn it, I've been scammed.

Obito looked indignant, waiting for Izumi to explain.

Izumi Nenya guessed Obito's thoughts, but he had no intention of explaining.

"Obito, I've come here specifically to tell you how to graduate from the Ninja Academy quickly."

Izumi Nen placed his hands on Obito's shoulders, his expression solemn, and his tone very serious, "Of course, the acquisition of power is always accompanied by a price..."

Obito, do you have the courage to face the abyss?

"Huh? What... Abyss?" Obito was taken aback by Izumi Nen's sudden serious tone, combined with Izumi Nen's usual performance during training.

Could it be... that this guy really mastered some secret method to enhance his strength, which enabled him to successfully graduate from the Ninja Academy?

Obito was still somewhat skeptical, but most of his initial displeasure had disappeared.

Seeing that the time was almost right, Izumi took out the scroll of the secret training method that he had prepared beforehand and solemnly placed it in Obito's hand.

"What is this?" Obito asked curiously as he took the scroll and was about to open it when Izumi stopped him.

"Don't rush to open it. Have you ever heard the saying, 'When your body is on the verge of its limit, your willpower will carry you out of the predicament'?"

Obito shook his head.

"This scroll contains some special methods for tempering the spirit and will of a ninja."

Izumi deliberately emphasized the word "special," and his expression became even more enigmatic.

"Remember, once you open this scroll, you will no longer be an ordinary ninja. You will bear pain that ordinary people cannot understand, constantly tempering your will until you break the shackles of your talent."

"Break...the shackles?" Obito's eyes widened, clearly having taken it to heart.

"That's right, that's how I passed my graduation exam," Izumi Nen said confidently.

"However, before I open it, I need to confirm whether you are qualified to practice these secret techniques."

"How do I confirm?"

"Let me draw your blood."

"?"

Although Obito didn't quite understand the connection between blood drawing and training qualifications, he was sorely mistaken if Izumi Nen thought he would be afraid of a mere blood draw!

Seeing that Obito agreed, Izumi didn't hesitate and immediately summoned the complete set of equipment from his storage scroll to begin drawing blood from Obito.

Seeing the enormous syringe that Izumi Nen had taken out, Obito's eyes showed regret, but it was too late.

……

Orochimaru's laboratory.

Izumi Nian looked at the fresh Uchiha blood in the test tube, a smile that was hard to suppress.

It wasn't just because of Obito's bloodline that he was greatly inspired in the development of Yin Release bloodline limit.

It's also because of the craving for high-quality blood within him.

"As expected, the bloodline of the Six Paths is not simple."

Izumi Nian raised the test tube and held it up to the light. Under the incandescent light, the blood in the test tube emitted an alluring red glow.

After a series of complex tests, he successfully analyzed Obito's blood sample.

Unfortunately, he couldn't replicate the Sharingan using only the DNA information from a blood sample.

No, even if he obtained the complete Uchiha DNA sequence, he probably wouldn't be able to replicate another pair of Sharingan.

It's important to understand that the Naruto world isn't just a purely technological world; it's a world of extraordinary beings, possessing the extraordinary energy of chakra.

Under the influence of the extraordinary, the information revealed by the DNA is far more than just the entirety of a ninja's existence.

On the contrary, chakra can represent everything about a ninja.

For example, the Impure World Reincarnation technique does not have any special requirements for the human body material used for impure world reincarnation. Even if the blood relationship is not related, it can be used. However, after the technique is successfully performed, it can reproduce the abilities of the deceased ninja, including their bloodline limit.

The key point here is chakra. Chakra is not only a product of the synthesis of mental and physical energy, but it can also influence the mind and body, causing them to change accordingly.

In the world of Naruto, chakra is everything.

At this moment, Izumi Nen's blood containing Obito contained a small amount of residual chakra, but since Obito had not yet awakened his Sharingan, it had very little research value for the Sharingan.

However, the descendants of the Six Paths have their advantages. With the help of the small amount of chakra in Obito's blood, Izumi Nen had many ideas on how to construct a special Yin Release bloodline limit.

"It's not just Yin Release; there are other chakra attributes as well. The proportions also need to be considered. Even a small amount of pure physical energy and spiritual energy are present."

Ordinary bloodline limits, such as Lava Release and Boil Release, only involve a mixture of two chakra natures.

Those favored by the Six Paths bloodline have a foundation of mixed chakra attributes naturally written into their bloodline, and can awaken it in one fell swoop as long as the time is right.

Furthermore, the bloodline of the Six Paths descendants not only surpasses that of ordinary bloodlines in strength, but also has greater potential for future growth.

This is a superiority derived from chakra and bloodline.

Although Izumi Nen does not have the bloodline of the Six Paths descendant, he has another, even more powerful support.

In the black mist space, power is shared.

Compared to attempting to synthesize bloodline limits using the methods of the ninja world, directly synthesizing different powers shared in space would certainly have a higher success rate.

For example, his special Yin Escape technique, and his special Yuan Shui Water Escape technique.

Having already seen successful examples, Izumi Nen did not hesitate any longer. After cleaning up the laboratory, he returned to the underground training room.

……

Hokage Building.

"Izumi Nen... extracted blood from his classmate Uchiha Obito."

The Third Hokage, Hiruzen Sarutobi, fell silent as he looked at the report in his hand.

Uchiha...blood...bloodline research...

Furthermore, given Izumi Nen's family background and ties to Root, and his current apprenticeship under Orochimaru, it's hard not to make Hiruzen Sarutobi have some doubts.

Orochimaru...

Hiruzen Sarutobi sighed silently to himself, his mind racing with thoughts, and he hesitated to put the pipe in his hand to his lips.

Izumi Nian is still a child, so we must guide him properly and not let him go astray.

With his mind made up, Hiruzen Sarutobi took a deep drag of his cigarette and turned to a white-haired ninja who was idly sitting in the Hokage's office, saying:

"Jiraiya, you should know about Orochimaru's new disciple, right?"

"Huh?" Jiraiya turned around and looked at Hiruzen Sarutobi with a puzzled expression.

Jiraiya already knew about Izumi Nen from his conversation with Orochimaru, and Orochimaru valued him highly. Even though Jiraiya didn't deliberately inquire about it, he could sense this from Orochimaru's words and actions.

"Orochimaru has been busy with missions lately and isn't in the village. Why don't you go and keep an eye on him? I'm a little worried about the kid's behavior lately."

Hiruzen Sarutobi put down his pipe, smiled at Jiraiya, and spoke in a tone like a kind elder who cares about his junior.