Of the scene that happened in the Hokage office, Kuroto naturally had no way of knowing. He who had just completed the A-level mission was walking towards his home at the moment.

Kuroto's parents died in the war a long time ago, but because Kuroto was part of the wealthy Hyuga clan and was sheltered by the clan, his childhood was much better than the other orphans in the village. ​​

At least, he owns a single-family house left to him by his parents.

When he returned home, Kuroto noticed that the house was spotlessly clean. Obviously, someone had been helping him with cleaning when he was on the task. The only one who would so is Yui, Hyuga Yui is Kuroto's engagement partner.

The marriage contract was made when Kuroto's parents while still alive, so after his parents passed away, Yui's family took care of him very much and treated him completely as a family, Kuroto is really grateful to Yui's parents.

After closing the door, Kuroto took out the secret technique of physical regeneration he had obtained from Orochimaru.

After careful research, he was able to figure out the principle of this secret technique.

Simply put, it is to use extremely special techniques to stimulate the cells in the body with chakra, to accelerate cell division, so as to achieve rapid accelerated healing of wounds and rapid recovery of chakras.

In terms of effect alone, this secret technique lives up to its name of 'physical regeneration', because it really regenerates the body by accelerating cell division.

But Kuroto knows that the number of possible divisions of every human cell is limited if the rate of cell division is accelerated then it actually accelerates the consumption of life span. In other words, the more frequently this technique is used the faster the user dies!

However, If used only in desperate situations, it would be a really useful technique!

Thinking of the shortcomings of this technique, and also thinking of the Furō Fushi no Jutsu that Orochimaru was about to develop in the near future Kuroto 's heart really revered it.

"Orochimaru possesses Furō Fushi no Jutsu, so the body can be replaced frequently. In this way, he completely overcomes the shortcomings of this technique. No wonder the later Orochimaru was kind of like a Cockroach, can hardly be killed, even Itachi can only find a way to seal him!"

The secret technique of physical regeneration can not only quickly recover the injury, but also because of the production of new cells, the body continuously obtains a new source of chakra, so once this secret technique is cast without scruples, then the caster is almost not afraid of any kind of damage, and have a continuous supply of chakras.

To others, this is tantamount to suicide.

But for Orochimaru, who is about to develop Furō Fushi no Jutsu (the secret technique of Living Corpse Reincarnation), according to which if one body is damaged, it can be replaced by another, this is not a problem at all.

Thinking of this, Kuroto really had to admire his teacher Orochimaru.

Although Kuroto couldn't use it unscrupulously, it was not a bad thing to master one more secret technique after all, so he quickly condensed his thoughts and concentrated on learning this secret technique of physical regeneration.

I don't know if it is due to the physical changes brought about by the Tenseigan, or the increase in chakras in the body. Kuroto has learned this new technique much faster than before. In addition, this secret technique involves human meridians' knowledge, and he was already very familiar with it, so he soon mastered the direction and method of chakra flow of this secret technique and the steps of forming seals.

After thoroughly mastering the secret operation, Kuroto didn't hesitate and immediately destroyed the scroll recording the secret technique. He was cautious not to leave any evidence that could be used against him.

After learning the secret technique, Kuroto pondered the problems encountered in this mission.

Regardless of whether the Rein Wheel Control (a combined term used for Push/Pull) a powerful and useful technique or the Sandaime KazeKage's puppet is very powerful, but he can't use these techniques openly, he can't include these techniques in his conventional fighting method if he encounters an enemy in the presence of a Konoha ninja.

Kuroto's fighting method is already very simple and of singling out. This feeling of restraining his strength was fully reflected in this mission.

Therefore, Kuroto urgently needs a series of fighting tactics and techniques as a means of defending against the enemy which he can use openly.

Taking into account his identity as a Hyuga, if want to reasonably obtain more and stronger means of defending against the enemy, further development of gentle-fist is undoubtedly the best choice of combat method for Kuroto at the moment.

"It's time to try to train gentle-fist again!"

The principle of Revolving Heaven is not complicated. Previously, it was restricted by the insufficient chakra volume, so I have not been able to successfully practice. Now Kuroto's chakra volume has far exceeded that of Neji, and since Neji can understand it by himself, then there is no reason why he who possesses the Tenseigan can't understand!

The next day, Kuroto found a small forest far from the land of the Hyuga clan for training.

After confirming that there was no one in the surroundings, he did not waste any time and immediately began to try.

There are two ways to master the Revolving Heaven, one is to master the various acupoints of oneself, and the other is to have sufficient chakras and be able to control chakra stably.

For Kuroto, both these methods are usable, so after only a few attempts, he was able to perform Revolving Heaven to some extent.

From this, it further proves that the physical changes brought about by the Tenseigan to Kuroto are not only reflected in the growth of his chakra volume, but he is also reflected in chakra control, insight, somatosensory balance, and perception, etc.

......phew…

After a sigh of relief, Kuroto wiped off his sweat with the towel prepared in advance.

After a morning of hard practice, he has barely mastered Revolving Heaven.

Although there is still a lot of room for optimization and improvement in the use of skills, it is no longer a problem to use it in actual combat.

After mastering the secret technique of physical regeneration and the technique of Revolving Heaven, Kuroto was in a good mood, so he took a short break at noon and came to the mission center again.

Like last time, the mission center is still deserted, and most of the ninjas who come and go are in a hurry.

Because there was a record of leading a team to complete A-level missions, and there were too many tasks in the mission center, Kuroto was made an exception and obtained the permission to receive A-level missions.

A-level tasks are generally commissioned by politicians of various countries or large forces. Under normal circumstances, at least ninjas who are of particularly high ranking can receive them.

And as his body gradually adapts to the Tenseigan, Kuroto's strength grows every day, and now he has mastered the technique of physical regeneration and Revolving Heaven. The strength has also reached the level of Tokubetsu Jonin, so it is no problem to take some A-level tasks that are not too difficult.

After simply flipping through the A-level task list, Kuroto curled his lips.

At the level of A-level missions, there are very few that are allowed to be received by a single person. Even if there are one or two missions that are allowed to be received by a single person, they are also difficult tasks such as "Assassination", which require Jonins, even elite jonins. Only the shinobi's at that level can complete such tasks with confidence.

At this time, Kuroto realized that the lack of a tacit teammate was a very big problem.

Just as he was starting to have a headache on who to search for forming team, a green figure rushed into the mission center…