Izuna, restore the glory of the Uchiha!

"When?"

Chiri finally finished her dinner slowly and deliberately, wiped her mouth, and looked up at the two of them.

Tobirama glanced at the sky outside the window; it still looked like everyone owed him money.

"Now."

If one had to use a single word to describe Tobirama's feelings at this moment, Izuna's answer would undoubtedly be "revenge achieved."

Now, the three of them are in the laboratory together, but the situation is very different from usual.

Normally, Chiri is only responsible for handling some basic steps, but now he stands at the main control panel and carries out his work under Tobirama's step-by-step guidance.

To be fair, she did a very good job as a newcomer.

It's also possible that during Izuna's absence, working alone with Tobirama in the lab, the added burden and simultaneous surveillance duties unwittingly raised her skill level.

In short, Chiri is now a capable lab technician.

In contrast, the situation in Izuna was vastly different.

Tobirama's previous resentment was undoubtedly poured out on this matter.

Including Izuna's dissatisfaction with his ruthless exploitation of his labor and Hashirama's anger at ignoring warnings and escaping, at this moment, he seemed to have grasped the only thing in the world he could use for amusement.

The strange and unsettling atmosphere at Tobirama was thoroughly entertaining.

"Lord Izuna, I'm afraid this technique differs somewhat from my demonstration. If you don't mind, it's quite significant."

Izuna certainly minded.

Having always been a top student, he was truly uncomfortable with the incessant sarcasm emanating from Tobirama's thin lips.

"I saw it, but you didn't have to be so definitive."

In Izuna's view, this was just a minor mistake.

"I just hope that when you use this technique, you won't leave half of your body in place."

Tobirama snorted coldly, and then went to complete his experimental procedures as requested by Jiri.

Izuna was extremely grateful to Chiri for saving the day; for Tobirama, staying here any longer would be an unbearable ordeal.

Some of his words—let's just consider them motivational—are completely useless for his actual learning progress.

Tobirama was well aware of this, but he would only point out the key error of Izuna after he had finished his sarcastic remarks, which was worse than letting him study on his own.

After all, he still has the Sharingan, which is really useful, Izuna exclaimed.

The three tomoe spun rapidly in his eye sockets, and the differences between the two techniques became increasingly clear. At this rate, it was only a matter of time before he mastered the Flying Thunder God Technique.

Tobirama saw everything Izuna did, and he was too lazy to mock this cheating behavior that abused racial advantages, since their time was indeed running out.

After finishing his work on the lab table, Tobirama returned to Izuna's side. Even knowing about the Sharingan, he couldn't help but admire how capable the kid was.

The Flying Thunder God Technique is undeniably difficult; Tobirama combined sealing techniques with some miscellaneous prototypes of space-time ninjutsu to successfully complete it.

Even he, as a researcher and practitioner, spent a considerable amount of time to truly verify it thoroughly.

How long has Izuna been studying?

Two hours?

To be precise, it was one hour and fifty minutes. Izuna glanced at the clock above the laboratory.

His ability to learn so quickly is inseparable from Tobirama's nurturing teaching style, although it sounds like it's interspersed with a lot of sarcastic remarks, and of course, the Sharingan's overpowered mechanism.

Not only that.

Don't forget, he is someone who has received rigorous exam-oriented education.

What is your best skill?

To learn by analogy and apply knowledge to other situations.

He genuinely struggled to understand the Flying Thunder God's theory, and he was too lazy to try. For the current situation, all he needed to do was solve the problems; in other words, as long as it was functional, that was enough.

Therefore, he remained silent in the face of Tobirama's cold words. In reality, Tobirama's use of technical jargon as a weapon was like casting pearls before swine.

If he can vent his anger because of this and become as docile as a cat that has been stroked, then Izuna will have made a huge profit.

After drawing the last symbol of the basic spell formula, Izuna compared the two formulas and confirmed that there was no difference. In fact, thanks to his meticulous work, the one with the ink still wet was even more exquisite.

Tobirama remained silent for a while, and after confirming that there were no problems with the technique, he almost snatched the pen from Izuna's hand and began to draw the next step on the original.

Izuna heard another almost imperceptible cold snort.

The next step is to clearly remember the process of using chakra to perform this technique; of course, the actual operation cannot be completed in a laboratory.

So, Izuna could only stare idly at the blueprints in his hand while watching Tobirama and Jiri tirelessly carry out the experiment they were supposed to complete that night.

Just as Tobirama had reported before, the experiments on the three-tomoe Sharingan and Hashirama cell reagent were nearing completion.

Izuna watched as Tobirama carefully pushed the reagent, with its precise concentration and dosage, into an unknown piece of human tissue that had been transplanted into the Sharingan with its three tomoe.

Judging from the size, it was obviously for ease of operation. Izuna guessed that it was a piece of tissue cut from the abdomen or back.

Who cares? In the lab now, no one is surprised to find corpses, and they don't care even if the bodies weren't taken from corpses.

Tobirama certainly used some methods to keep the tissue active, but it obviously wouldn't last long, so he and Chiri had to hurry.

The needle is inserted, pushing the plug deeper and deeper.

Tobirama deftly pulled out the syringe after inserting the reagent and stood by, waiting for the experimental materials to react.

As for why they are being so cautious...

Izuna attributed this to the fact that in previous historical experiments, the intercolumnar cell reagent had repeatedly been too reactive, turning the experimental materials into vibrant potted plants—

Its size was certainly suitable for putting in a pot, and he even heard the tribal doctors praising the two lush green plants by the window when he was teaching them during the day.

However, they clearly hadn't examined the bottom of the basin closely. Izuna later covered it up slightly with soil, and now it's ready to be admired at will.

It almost resulted in the tragic situation of burying the Sharingan in the potted plant.

Therefore, their caution is understandable. Fortunately, the Sharingan's power is so strong that not a single green sprout appeared on the material until the reagent was completely absorbed.

No one wants to appreciate a piece of greenish meat with a pair of red eyes growing on it, surrounded by lush, verdant foliage.

In the early stages of the experiment, everyone had become numb to the situation.

Finally, Tobirama and Jiri breathed a sigh of relief, cursing as they took off their gloves and threw them into the recycling bin. Then, exhausted, they collapsed into their chairs, declaring the successful conclusion of tonight's experiment.