Preparations for war are in full swing. The troops are gathering in the northeast of the Land of Fire, the Land of Fields, the southeast of the Land of Lightning, etc. This area is the designated war zone. The Fourth Ninja World War will be launched in this vast area.

Although the general matters were stipulated in the letter of challenge, the actual confrontation would naturally not be so detailed.

Neither of the two opposing sides would be naive enough to completely trust the other. There is no such saying in the ninja world that war is all about deception, but everyone understands similar principles. In a war that determines the lives of countless people, how can the key to victory or defeat be pinned on the enemy keeping their promises?

Wave after wave of ninjas changed into the uniforms of the Allied Ninja Forces and rushed to the battlefield. The Konoha Village, which had originally been like a large barracks, gradually began to look deserted. The once bustling village became unusually deserted. The impact of the war was affecting every aspect of the ninja world.

The last person to appear must be the big shot.

Tsunade, the fifth Hokage, is still busy for the village, while Jiraiya, who is destined to be a hard-working person, has already started to travel outside. With such a respected guy showing up, many problems that require the actual Hokage to step in to solve are also recognized by Jiraiya in handling others' problems.

After Kakashi Hatake returned to Konoha Village, many things finally had a clear cause. Mizuki could also get away from the mountains of documents and meetings and seize the time to do his own things.

The reason for urgently transferring Kakashi Hatake back is that the Allied Ninja Forces are assembled and mainly divided into five major companies. The third unit is temporarily designated as a medium and short-range support unit, mainly composed of ninjas with both speed and physical strength. Kakashi Hatake was appointed captain of the third company because of his outstanding reputation and high strength.

Since he is the captain, he not only has to command on the battlefield, but also has certain requirements for his subordinates. It's ok that he has no control over the ninjas from other ninja villages, but as the main force, Konoha Village, naturally, Kakashi Hatake will be responsible for the deployment of personnel.

The department with the most ninjas in Konoha Village happens to be the Security Department headed by Hatake Kakashi. With such a sufficient reason, it is impossible to assign the task to anyone else.

It just so happened that someone else took over Shuimu's busiest task, which made him feel a lot more relaxed.

In the underground laboratory in the back mountain of Konoha, Mizuki hasn't come here very often in recent times.

In fact, now, the focus of Mizuki's secret work has gradually shifted from the laboratory in the back mountain of Konoha to the Land of Rain.

After all, this is just a temporary laboratory set up by Orochimaru. The space is limited. Even with three underground floors, after Mizuki's expansion, it still feels a bit cramped.

If there is a better place, a safer venue, no one would have the patience to stay underground without seeing the sun.

Although the Rain Country is small, it is still a country after all, and its independent power deserves the respect of all ninjas from other countries.

No matter who is in charge of the Rain Kingdom or what kind of governing strategy they adopt, as long as it does not affect other countries, no one will care too much.

There are no organizations like the United Nations and the Human Rights Council in the ninja world, and the division of social classes is still very obvious.

Because of this, even if Mizuki does evil things in the Rain Country, basically no one will care, let alone conduct some secret experiments.

Which country or ninja village in the ninja world has not done these inhumane things?

Far away there was the Second Hokage, Tobirama Senju, who developed so many terrifying forbidden techniques. Was there no experimental subjects sacrificed?

The most recent one is Orochimaru, one of the “Three Ninjas”, who has caused countless innocent deaths at his hands.

Even in the Takiguni Village, doesn't there also a forbidden technique like Diyuan Yu that can create immortality?

Only God knows how many people died in the process of researching such a secret technique.

Because the focus was slowly shifting to the Rain Country, Shuimu sent away all the research that would be very troublesome if exposed. This underground laboratory in the back mountain gradually became a place and transit station for convenient research of superficial projects.

Koji, the physical incarnation of Mizuki, who was originally in charge of the government of the Rain Country, arrived here at an inopportune time.

This time, he was not a researcher, but was lying on the experimental table as an object of observation.

The Rain Kingdom now only has Mizuki's other physical clone - Hope - in charge of the situation.

Today was the first time that Mizuki conducted a systematic inspection of the trophy in his hands, a pair of Mangekyō Sharingan from Uchiha Shisui.

Since the last chance to use Kotoamatsukami was consumed, this pair of Mangekyō Sharingan was transplanted to Kouji.

If you felt a little uncomfortable at the beginning, the problems that should have arisen have now appeared, and it is time to do a systematic inspection.

"It seems that the original body's qualifications are even worse than imagined!"

Gongzhi lay on his back on the test bench, not treating himself as "meat on the chopping board" at all. Instead, he made jokes with an expressionless face.

"Even with the Breath Containment Technique, my physical condition still cannot sustain the consumption of two Mangekyō Sharingan!"

It wasn't obvious at the beginning of the transplant, but now, when everything has settled, the consequences are finally revealed.

The only commendable things about Mizuki's original physical qualifications were his good physical strength and chakra capacity. Even so, after using super cells to improve his physical condition, he is of course much stronger than before. However, the chakra supply to support the two Mangekyō Sharingan is still in a state of deficit. If it weren't for the massive amount of chakra he had collected in the past, and the chakra he provided to Koji through mental connection, he would have collapsed long ago.

"Among all the physical clones, I am the first one that not only does not contribute to Xishuixiang, but also needs its support and is a drag."

This is indeed the case. The consumption after non-Uchiha people transplanted the Sharingan was much higher than expected.

"How could this happen? Even the eye rolls aren't this exaggerated?"

Shuimu had a headache. He didn't expect that the Breath-Concealing Technique would not be enough, but there was nothing he could do about it.

The chakra collected by the Breath Concealment Technique is not without source. If the daily chakra consumption exceeds the amount of chakra produced by the body, the Breath Concealment Technique will be useless and can only be used as a reconnaissance secret technique to cover up one's tracks. The function of storing chakra will not be usable.

This is like working hard to build a super large reservoir, but if there is no rain and no rivers or streams flowing into it, it will just be a decoration.

Compared with other examples, Kakashi Hatake has excellent qualifications and awakened the Mangekyō Sharingan on his own. Kabuto Yakushi has a messy fusion bloodline and transplanted the Mangekyō Sharingan but he is still alive, so he can be considered a gifted person.