Shimura Danzo had experienced the pain of watching hope shattered many times. The repeated blows of despair had long made Danzo's heart as hard as stone.

When Jia, who was obviously not in good shape, returned to Konoha Village, Danzo, who had received the report, quickly came to check the situation.

"My eyes are overly tired. They seem to be under great pressure. The chakra consumption is very high!"

It looked a bit like the result of a tough battle against a strong enemy.

"What on earth happened to you?"

"Unknown to me, after successfully completing the mission, an accident occurred on the way back. My eyes suddenly felt uncomfortable and a large amount of chakra poured in. It was only after I consumed a lot of chakra that the abnormality stopped!"

After hearing Jia's description, Danzo's eyes narrowed, and the situation he was most worried about happened.

Maintaining the balance between the first generation cells and the Sharingan is extremely important. Danzo knows that if anything goes wrong, it will be a very serious accident.

Danzo himself received a transplant of the first generation's cells, and in order to balance the power and to improve his own combat effectiveness, he implanted many Sharingans in his arms.

The fragile balance maintained between the two, coupled with the help of the seal, is enough to deal with all troubles even if there are occasional minor problems by suppressing them with one's own chakra.

But Jia is different. The body made of the first generation of cells has strong physical strength, but because the cultivation time is very short, the soul is extremely fragile. The Yin attribute spiritual power is completely incomparable to the Yang attribute physical strength. In order to balance the two, after implanting the Sharingan and slightly modulating it, an unprecedented person was born.

But Danzo overlooked one point, the body and the spirit are not static. As Jia became stronger, his physical strength began to thrive. However, the way the "Root" organization was cultivated made Jia's spirit almost non-developable.

Without the support of spiritual power, the Sharingan is unable to maintain a balance with physical strength, and imbalance between yin and yang is inevitable.

This is completely different from the situation after the imbalance of Yin and Yang of Mizuki, which only affects the chakra control and even has a good enhancement on medical ninjutsu. The first generation cells and Sharingan are quite dangerous and can cost lives if not handled with care.

"Sharingan, the eye of mind reflection, is really troublesome."

With his spirit stagnant, Jia couldn't fully utilize the Yin attribute power of the Sharingan to balance himself. He couldn't always maintain it by reducing chakra and lowering the activity of body cells. If this continued, sooner or later the Sharingan would completely collapse.

"We can't let A remain so ignorant any longer."

In order to keep this extremely important subordinate force, it is most reliable to keep it by your side, and it is not easy to have second thoughts. But if no measures are taken, its life may not be guaranteed, and it will really be a loss.

It is not easy to find a good place for Jia Mou. The very obvious Sharingan is a huge trouble.

"It seems that simply suppressing emotions is not going to work. At least one of the two, love, hate, and vengeance, must be given to A, otherwise all the efforts will be in vain."

"Terai, go get those two trainees."

"Trainees? Are they the pair that have been performing well recently?"

"Yes, the group where the older ones are seriously ill and the younger ones are well qualified."

"Understood!"

Since the situation has changed, it is reasonable to appropriately change the training strategy for a small number of people. However, in this case, more effort will be spent to control them and prevent them from betraying.

And there is the young man who is dying of a serious illness but is trying to hide it. We cannot let him die in vain. Keeping him alive should still be of some use.

…

In the past, when Mizuki was practicing controlling the chakra of the tailed beasts, he didn't pay too much attention to their properties, such as the magnetic escape of the one-tailed Shukaku and the boiling escape of the five-tailed. He only studied the chakra of the seven-tailed beast carefully, and put a lot of effort into obtaining its flying ability. But he didn't pay as much attention to the chakra of the four-tailed beast as he did now, and even stopped practicing the nature change of the water-attributed chakra halfway through.

"The control of the Four-Tails' chakra is not a problem, and the changes in the properties of the fire and earth attribute chakras have not been left behind. The prerequisites for learning Lava Release have been met, but it is still difficult to merge the two into Lava Release."

After practicing for several weeks, the lush green leaves began to turn yellow and fall. Autumn had arrived, but Shuimu's Lava Escape was still just one step away from success.

The original body is obsessed with studying lava jutsu, so the practice of water jutsu can only be left to the physical clone.

"I think you can refer to Uzumaki Naruto's method!"

While taking breaks, the physical clone would occasionally offer some suggestions.

"Senjutsu Melting Release - Rasenshuriken?"

Shuimu was quite impressed by this move.

"The power of this technique is unquestionable, it can even cut down the sacred tree. But at that time, Uzumaki Naruto obtained the full support of the Four-Tails and could use the tailed beast chakra freely, which is somewhat different from my current situation."

"Don't bother with that. Rasenshuriken isn't very practical for us. We can just try to combine Senjutsu, Rasengan, Fire Style and Earth Style. Maybe we'll get some inspiration."

The Rasengan is the ultimate manifestation of chakra's form change. Judging from Uzumaki Naruto's performance, it has good compatibility with chakras of various attributes, but it is more troublesome to practice. At least Kakashi Hatake failed to fuse it with Lightning Release.

The Rasengan has good applicability, but it is really incompatible with the stable earth attribute chakra and cannot be integrated at all. Mizuki gave up after trying a few times.

The fusion of active fire attribute chakra performed well, but the flying flames were too dangerous. Fire escape was not meant to be played with in the hand.

"etc!"

After several unsuccessful attempts, Mizuki seemed to have thought of something.

"The Rasengan is a non-attribute ninjutsu created by simulating the Tailed Beast Ball, right? Since it imitates the Tailed Beast Ball, it is natural that it can be compatible with the Tailed Beast's chakra and bring out its power, isn't it?"

Why are all of Uzumaki Naruto's main attack methods derived from the Rasengan? Because this technique is the prototype of the Tailed Beast Ball, but the power and chakra quality are too different.

The compatibility of the Rasengan with the Five Elements Essence Technique is not necessarily that good. Naruto was able to practice the Wind Style - Rasenshuriken, simply by taking advantage of his large amount of chakra and forcing it through the Multiple Shadow Clone Technique.

Two amazing geniuses, Minato Namikaze and Kakashi Hatake, failed to achieve their goal after many years, but Uzumaki Naruto succeeded.

The power of the Rasenshuriken is indeed great, but it also causes great damage to one's own body, so much so that Tsunade tried to list it as a forbidden technique and asked Naruto to use it with caution. This shows that the Rasengan combined with the change in the nature of wind-attribute chakra is not a good choice. If someone else used it, his arm would probably have been crippled long ago.