Both time-traveled characters ended up as villainous henchmen.

To be honest, Izumi Nen has been busy researching his own chakra system and sealing techniques lately.

There was simply no time to scheme against Danzo.

In addition, Danzo had been too stingy with what he received last time, so he had no intention of contacting Danzo for a while.

Even the special parasite that the root gave him for communication was kept in a glass box in the lab. He's been so busy lately that he's forgotten to feed it, and he doesn't even know if it's dead yet.

Now Danzo is in a hurry to find him, and even went so far as to draw some of the Root's trainees to form a ninja team to enter the Chunin Exams.

It is clear that the mental energy sealing technique he created had already made Danzo aware of the crisis.

So, will Danzo come with sincerity this time?

Izumi Nen holds a negative view on this.

As the leader of Root, Danzo being unilaterally ignored by a mere genin is a huge embarrassment that will likely not be easily overlooked.

The three genin showed no emotional fluctuation in response to Izumi Nen's questioning, mechanically replying:

"Lord Danzo asks you whether the agreement with Root still stands."

"It counts, of course it counts."

Izumi replied calmly that he would naturally welcome Danzo's continued donations.

However, this matter is probably far more complicated than it appears on the surface.

The three genin nodded, said nothing more, and handed over the scrolls of their tools.

These are two different reels. Regardless of which one Izumi Nian has, it will allow him to directly complete the requirements of the second assessment.

"This is our scroll; please accept it, Lord Izumi."

Looking at the three genin in front of him who were older than him but addressed him respectfully as "sir," Izumi Nen felt a strange sensation.

However, he did not refuse the offer of a roll of paper.

"Lord Danzo will provide you with more assistance in the future, whether it is ninjutsu or research materials. Root will cooperate with you more closely from now on."

After delivering the scroll, the three genin didn't linger. They gave a few brief instructions and quickly disappeared from Izumi Nen's sight.

He had obviously gone back to inform Danzo.

Given Danzo's character and style of doing things, Izumi Nen would naturally not simply assume that his entanglement with Root had ended just like that.

"It seems we need to be wary of some underhanded tactics from the roots."

Izumi Nen murmured something under his breath, showing no fear on his face, after all, his strength was no longer what it used to be.

When facing the Root, they are no longer as passive as they were during the Ninja Academy.

What's more, he now has someone backing him up.

After temporarily setting aside the threat from the root, Izumi Nen took the scroll and began to use his powerful senses to search for a suitable place for secluded training in the training grounds.

His requirements were very clear: seclusion, undisturbed location, high concentration of natural energy, and, most importantly, proximity to water.

So he quickly followed a stream in the forest and found a small river, and then began searching along the riverbank.

On the way, he also encountered another team of genin. After a brief exchange, Izumi Nen let them go and cleaned up any traces he had left behind. He then chose a tributary of a river to continue his search.

After a careful search, Izumi Nen found a deep pool under a small waterfall.

Beneath the deep pool lies a hidden cave, its interior not submerged but rather possessing ample dry space.

Apart from some wild animals and insects, it is a very suitable place for cultivation and seclusion.

After selecting the location, Izumi quickly cleaned up the traces he had left in the cave and around the deep pool, then submerged himself underwater and sat cross-legged deep inside the cave.

Deep within the dimly lit cave, Izumi Nen's eyes glowed with a faint purple light; the darkness could not obstruct his vision.

After calming down and sitting quietly for a while, he adjusted his state to its best, then took a deep breath and began to practice the Yin-Yang Sealing Technique.

The preliminary preparations for the Yin-Yang Seal are largely similar to those for the previous Yin-Yang Eye Seal.

Based on the established meridian system and acupoints, one adjusts the layout of one's blood vessels to connect and integrate several parts.

The difference is that the Yin-Yang Seal not only needs to integrate the meridian system, acupoints and blood circulation system, but also needs to incorporate his immortal body into this whole.

Not only does it cover more areas, but its complexity and difficulty have also increased significantly.

Fortunately, Izumi Nen had anticipated this. His mind was clear and calm, without the slightest impatience. He adjusted the blood vessel layout in his lower abdomen dantian little by little, in order to integrate the Sage Body with the chakra meridian system.

The second assessment lasts for five days, and less than two hours have passed since the assessment began, so Izumi has plenty of time and there is no need to be too anxious.

Moreover, he had already privately conducted numerous simulations of the preliminary preparations for the Yin-Yang Seal in response to this situation.

Basically, he already had a draft in mind for two-thirds of the preliminary preparations.

The real challenge was only the last third; he simply didn't have time to work out the deductions for that part.

Fortunately, he still had some "external" assistance. After this period of time, he cultivated a persona of himself as a young genius and a master of sealing techniques in front of Orochimaru and Hiruzen Sarutobi.

Their acceptance of this character has greatly increased, especially Orochimaru. After Orochimaru briefly mentioned concepts such as Tai Chi giving rise to Yin and Yang, and Yin and Yang giving rise to the Four Symbols, he showed great enthusiasm for research. In the end, Orochimaru even made some research results using these concepts.

It can be said that Orochimaru and the Third Hokage, Hiruzen Sarutobi, had already prepared the "world" certification they represented.

With the help of this special power, Izumi Nen is confident that he can succeed even faster in the deduction of the last third of the content!

Time passed second by second. In the dark depths of the cave, only Izumi Nen sat cross-legged. Beneath the skin of his lower abdomen, blood vessels constantly moved and shifted.

After a day and a night, the final third of the content was successfully completed by Izumi Nen.

In an instant, his Sage Body was no longer isolated from the chakra meridian system as before, but instead participated in the flow of the chakra system through blood circulation.

At the same time, the pure life energy accumulated in his Sage Body quickly combined with the Yin-Yang Release that had begun to take shape in his meridian system and blood circulation, together leaping towards a higher level of chakra energy form.

Sage Art: Yin-Yang Release Chakra!

The typical Sage Mode training involves mixing the natural energy absorbed from the outside world with one's own physical and mental energy in equal proportions, thereby synthesizing a higher-level Sage Chakra.

However, Izumi Nen's Sage Mode training is different from that.

After being absorbed by his immortal body, the natural energy underwent a filtering process, becoming less violent and dangerous, and instead transformed into a gentler and purer life energy.

After this life energy combines with chakra, the danger is no longer as intense as that of the traditional Sage Mode. In fact, the Sage Chakra formed after the combination has an energy grade that exceeds that of ordinary Sage Chakra.

Moreover, Izumi Nen is currently using Yin-Yang Release chakra to perform Sage Mode!