Both time-traveled characters ended up as villainous henchmen.

Five days later.

After another fruitless study of Izumi Nensen's human cells, Orochimaru walked out of the laboratory looking somewhat tired.

The outdoor sunlight was just right, making Orochimaru's skin look even paler. He subconsciously raised his hand to shield his eyes from the sunlight, and just then he spotted a familiar figure.

Izumi read.

Is this because there's a problem with the experiment and they've come to me for advice?

Orochimaru immediately recalled the experimental topic that Izumi Nen had shown him earlier: guiding the separate storage of spiritual energy and physical energy through sealing techniques—a conjecture about increasing the upper limit of a ninja's chakra.

The idea is good, but it ignores the actual objective phenomena.

Orochimaru smiled slightly, looked at Izumi Nen, and asked first:

"What's wrong? Have you discovered that no matter what you do, you can't precisely seal your physical and mental energy with the sealing technique?"

Izumi Nen shook his head without answering, and instead took out a brand new experimental research report and handed it to Orochimaru.

Orochimaru's eyes flashed with a hint of doubt, but he didn't ask any further questions. Instead, he took the experimental report and began to read it.

"This is……"

The first experimental topic that caught Orochimaru's eye surprised him slightly.

"A simplified idea for sealing spiritual energy in the eyes and brain."

Spiritual energy, the eyes?

Furthermore, Izumi Nen seems to possess Yin Release chakra... So, is this a bloodline limit?

Without much thought, Orochimaru immediately thought of similar bloodline limits—the Sharingan and the Byakugan, especially since these two eye techniques were found in Konoha Village.

Then, Orochimaru remembered that Izumi Nen had previously collected and tested the blood of his classmate Uchiha Obito, and even gave him a secret genjutsu technique to aid in taijutsu training.

If Orochimaru can't even figure out what Izumi is thinking, then he's wasted all these years as a ninja.

"What's wrong, Izumi-kun? Are you getting interested in the Sharingan, a type of ocular jutsu?"

Orochimaru looked at Izumi Nen, seemingly realizing once again the hidden greed in the child's heart.

"That's right. Who wouldn't want to have the Sharingan, a type of eye technique with a bloodline limit? It's powerful and versatile. Once it's successfully awakened, even a student like Obito with poor grades could quickly grow into a qualified ninja."

Furthermore, after Orochimaru-sensei gave me some pointers last time, I secretly conducted research on spiritual and physical energy, and discovered that spiritual energy has a strong relationship with Yin Release chakra.

Izumi Nen did not hide this fact, but openly and frankly admitted it, even using Obito as an analogy.

He remembered that at this time, Orochimaru was not very interested in the Sharingan. The real reason that Orochimaru began to focus on the Uchiha bloodline and the Sharingan was Uchiha Itachi.

And right now, Itachi hasn't even been born yet.

Therefore, Izumi Nen's current display of his covetousness for the Sharingan will not arouse Orochimaru's suspicion.

"Furthermore, Orochimaru-sensei, think about it. I already possess the Sage Body. If I were to add a Sharingan or similar ocular jutsu/bloodline limit, wouldn't my strength skyrocket instantly!"

Izumi Nen continued to explain, while also revealing a childlike longing for great power on his face.

Orochimaru was slightly taken aback upon hearing this. He had always treated Izumi Nen as a valuable and unique research subject, but he had overlooked the other party's aspirations for improving the strength of ninjas.

He's still just a child, no matter how amazing his talent is.

In his heart, Orochimaru was unwilling to let Izumi Nen's strength continue to improve. Firstly, such continuous improvement was not conducive to his experimental observation, and secondly, he was worried that he would not be able to control Izumi Nen in the future.

However, he ultimately suppressed this selfish thought.

After all, Orochimaru at this time still had hope for Konoha and for the Hokage.

In dealing with Izumi Nen, Orochimaru was more or less influenced by his teacher, Hiruzen Sarutobi.

The next generation of Konoha...

After silently sighing to himself, Orochimaru looked at Izumi Nen again.

Looking at the child in front of me, so excited about a small research discovery.

In a daze, Orochimaru seemed to recall the joy and excitement he felt for the unknown when he was young.

"Not a bad idea, but bloodline limits like the Sharingan cannot be synthesized by simply sealing spiritual energy and nurturing it, even if you possess Yin Release chakra."

Orochimaru first agreed with Izumi Nen's idea, and then pointed out the crux of the problem.

After all, he also wanted to see what kind of sparks would fly when the immortal body was combined with the bloodline limit of eye techniques.

Moreover, if he remembered correctly, Izumi Nen's Sage Body seemed to possess a certain adaptive evolutionary ability. If he continued to nurture it with spiritual energy and then gradually introduced Yin Release chakra, he might actually be able to create a completely new dojutsu-type bloodline limit.

Of course, this process will likely take a very long time.

Therefore, it seems that the Uchiha and Hyuga, who are born with this kind of bloodline, have a huge advantage over ordinary people in terms of bloodline.

Orochimaru's thoughts drifted for a moment, but he quickly brought his attention back to Izumi Nen in front of him and the experimental report in his hand that he had not yet opened.

It must be said that after this conversation with Izumi Nen, Orochimaru suddenly became interested in bloodline limits such as Sharingan and Byakugan.

Of course, this interest is based on simultaneously possessing the body of an immortal.

With his help, could Izumi Nen accelerate this adaptive evolution process?

This question popped into Orochimaru's head.

Forget it, let's see if this child makes any progress in his conjecture about the mental energy sealing technique.

He remembered the sealing technique concept that Izumi Nen had shown him last time. Although it had many novel ideas, it was still in the conjecture stage and no practical solution had been given.

What about this time?

With a slight sense of anticipation, Orochimaru opened the experimental research report and went straight to the chapter about the concept of sealing techniques.

With just one glance, Orochimaru saw a unique sealing technique he had never seen before.

This is a sealing technique that integrates the meridian system, acupoints, and the body's blood circulation.

No additional inscription of the spell is required; the original structure of the human body is sufficient to achieve the effect of the sealing spell.

He actually made it? How did he come up with these ideas? And how can this complex structure involving the meridian system, acupoints, and blood circulation replace the sealing technique?

After a brief moment of surprise, Orochimaru's mind was quickly filled with a variety of questions.

Ultimately, all the questions converged into one.

"Are you sure this special sealing technique will work?" Orochimaru asked Izumi Nen.

"I'm not sure!" Izumi Nian replied excitedly, "Because I don't know much about the human body's meridian system, acupoints, blood circulation, and most importantly, sealing techniques, so..."

"So, you've come to me with this bold, unproven conjecture."

Izumi Nen smiled and nodded.

Orochimaru was not annoyed by this; in fact, a slight smile appeared on his lips.