And then they started looking for a way to use this weakness of Uchiha Yue to defeat him.
It seemed incredibly difficult, but there was a way!
They found him!
It became the technology of spiral injection and aggregation of ultra-high-density energy!
First, it was necessary to create a special energy core. This core had an extremely high energy storage capacity, as well as the ability to compress it strongly. Then it was necessary to collect energy — a huge amount that could completely fill this core. After all this energy was pumped into it, the energy core began to work, creating a high-pressure environment that compressed the energy, turning it into a high-density aggregate.
This technology was used not only in the energy core, but also in the body of the mech itself. The energy circulating through his channels also became incredibly dense and difficult to absorb. Moreover, the speed of its circulation was extremely high: every second, the energy cycle inside the mech reached thirty thousand revolutions. Such a highly concentrated energy circulation could even be called a monstrous attack. If this energy were to burst out, it would be able to cut through any, the hardest material in the world. Only the body made of a special superalloy was able to withstand such pressure.
However, that alone would not be enough. The absorbing ability of the Dead Silence Realm was too terrifying. Simply turning the energy into a high-density mass probably wouldn't have been enough to penetrate deep and kill Uchiha Yue.
But it wasn't a big problem. Otherwise, why would this technology be called spiral injection and energy aggregation technology?
After the energy was compressed, all its particles inside began to spin wildly in a spiral. During this rotation, they continuously pumped pressure, returning any free energy to the system.
When fully activated, the pressure inside the Absolute Demonic Mech reached terrifying levels. At the same time, the energy inside was spinning at high speed, violently pumping and contracting, which locked it tightly inside the machine.
Such a weapon... even an alien like Ootsutsuki Isshiki couldn't help but be amazed. By bringing together the power of the entire Shinobi world, this creation has reached the limit of its power. It was safe to say that it had become the ultimate weapon against Uchiha Yue.
Moreover, this thing posed an incomparable threat to himself, because Izanami's dojutsu could be used not only against sharingan holders.
If someone piloting an Absolute Demonic Mech dealt him a crushing blow, his soul could really be erased from existence.
That's right, Ootsutsuki Isshiki gave Uchiha Yue the utmost importance. To ensure success, he personally participated in the entire process of creating the Ultimate Demonic Mech. This was especially true for the Soul Annihilation Sword. When he created it, he set himself the goal of forging a weapon capable of destroying and killing himself, the entire Ootsutsuki clan. All in order to completely erase Uchiha Yue's soul with one blow of the sword.
This sword has been pushed to the limit of specialization. He didn't have any physical attacking power. The only thing he was capable of was destroying souls. Isshiki could guarantee that if he himself had to withstand the blow of this weapon, his soul would be struck down with one blow, erased without a trace.
It could be said that such a weapon should not have existed in the Shinobi world, and these savages definitely should not have been able to create it. After all, before that, they didn't even know how to destroy a soul. Edo Tensei's forbidden technique could create immortals precisely because they didn't have the usual ways to destroy the soul. If they had them, Edo Tensei would not be a technique of immortality.
However, the Absolute Demonic Mecha wasn't truly invincible. His main problem was the energy source.
The huge supply of senjutsu chakra stored inside was only enough for ten minutes of running the mech at full power. Of course, this did not mean that after ten minutes he became useless — he just could no longer work at the limit of his abilities. In a normal world, this would not be a problem, but in the Area of Dead Silence, especially near Uchiha Yue, once the ten-minute period of full power is over, the energy inside will not be enough to maintain it in a condensed state. All the energy powering the mecha would most likely be absorbed by Uchiha Yue in the shortest amount of time, and he would turn into a pile of metal.
Besides, recharging an Absolute Demonic Mech was incredibly troublesome. Ever since the level of natural energy in the Shinobi world dropped to a critical level, the chakra of the Tailed Beasts, which was believed to be endless, began to dry up and decrease. Having discovered this, they were finally convinced that the so-called infinite Tailed chakra was actually pseudo-infinite and was achieved through connection with the flows of natural energy. Therefore, they had to abandon the idea of using Tailed Ones.
So how do you charge an Absolute Demonic Mecha then? By human means?
So you can work yourself to death!
And then they remembered Edo Tensei. Many dead people were resurrected and used as batteries to power the Ultimate Demonic Mech. Even Senju Hashirama volunteered to join them.
Everything... will come to an end soon!
Senju Tobirama was also looking at the Absolute Demonic Mecha. Deep down, he was thinking. In fact, during the creation of this mech, he had doubts more than once. He suspected that no Child from the prophecy existed, and Jigen had invented it only to calm and rally everyone. Jigen's real goal, as it seemed to him, was to create an absolute weapon capable of killing Uchiha Yue!
And this weapon is an Absolute Demonic Mecha!
When the construction of this miracle was half completed, he already thought that perhaps the Child from the prophecy would not be needed. Just the might of an Absolute Demonic Mech would be enough to kill Uchiha Yue.
And only now, when Jigen really found the Child from the prophecy, he believed that it really exists!
All that remained now was to strengthen the body of the Child from the Prophecy to awaken its power, and then it would be able to pilot the Ultimate Demonic Mecha and kill Uchiha Yue.
***
In the laboratory.
"So this is the Child from the prophecy?" It looks kind of... ordinary!
— Our world will finally be saved!
—Mr. Child of the prophecy, I beg you, you must save this world and kill Uchiha Yue!"
Several researchers crowded around the unconscious young man, injecting various drugs into his body.
— Mr. Jigen!
At that moment, Ootsutsuki Isshiki entered the room.
— Mm-hmm.
Ootsutsuki Isshiki nodded and looked at the young man. His expression softened, as if he was looking at another self.
"We've finally found him. Our Child from the prophecy!
Looking at this so-called Child from the prophecy, even Ootsutsuki Isshiki couldn't help but…