Start with a Zanpakuto and build the strongest Mist Village.

The so-called construction of a spiritual land is not simply about releasing all the collected souls into one place.

To build the Reincarnation Ground, the problem of the Underworld Pure Land needs to be solved first. To this end, Yoru constructed a large spirit-binding device in the center of Kirigakure, next to the Mizukage Building, and built a special chakra tower based on it.

That is, the Hidden Mist Duel Tower!

Yes.

The sole and ultimate purpose of this tower is to transform the entire Misty Hidden Land into a spiritual stronghold; all other functions are essentially secondary.

While chakra cannot be used to fight against the Otsutsuki, it is indeed a versatile energy source.

In particular, it can have unexpected effects when used to restrict the soul and mental power. Therefore, Yoru and Yumi and others worked together to create this special device.

And the power source for this instrument...

"How are they doing?"

Night's gaze fell on the four figures sitting around the huge instrument, and he asked Yumi, who was busy working beside him.

"Not very good."

Yumi shook her head: "The Impure World Reincarnation invented by Tobirama Senju is not very complete, and we don't have many suitable sacrifices. Even if we just transfer chakra, these impure bodies can only last for a day at most. After a day, the impure bodies will break down and the jutsu will automatically be released."

"Even using cultivated White Zetsu cells won't work?" Night looked at the Edo Tensei people; fine cracks had appeared on their skin, a clear sign that their Edo Tensei state was about to collapse.

"The key is still the completeness of the technique... I'm sorry, Lord Ye, my research in this area is rather superficial."

"No, everyone has their own expertise. Your talent for researching the soul is beyond doubt, so there's no need to apologize. Besides, it's already quite good that you've managed to get them working non-stop all day."

Night shook his head.

Everyone has their own area of ​​expertise; what each person knows and excels at is different.

Like Yukiko, she has a great talent for researching bloodline limits, but she is a little lacking in the area of ​​soul, which is normal.

Except for Orochimaru.

Orochimaru is arguably the greatest scientific genius in the ninja world, with profound knowledge of ninjutsu, the human body, and the soul.

In the original work, Orochimaru in the Boruto era is completely overpowered, transcending life and death through scientific research!

Although Orochimaru at this stage is still far inferior to Orochimaru in Boruto, talent is something that cannot be changed. Moreover, Orochimaru at this stage is already researching the Impure World Reincarnation technique and even using it in combat.

"Looks like I'll have to find some time to have a chat with Orochimaru..."

Chapter 127 Emptiness!

Creating a heavy spiritual land requires a large amount of chakra, and Night had already planned the source of this chakra.

At first, Yoru wanted to use the tailed beasts as an energy source, since the tailed beasts' chakra was said to be inexhaustible and had an extremely fast recovery speed, and Kirigakure happened to have the Three-Tails and the Six-Tails.

However, the temptation of a single tailed beast being worth 500,000 points was too great for Ye. With the idea of ​​dying early and refreshing early, Ye ultimately did not choose the tailed beast, but instead chose the Impure World Reincarnation!

Yes.

It's the forbidden technique created by the evil Tobirama Senju that sparked the Fourth Shinobi World War, a technique for manipulating the souls of the dead.

Those resurrected by the Impure World Reincarnation technique possess unlimited chakra and an immortal body, and the caster can directly control the impure person—it's practically a perfect, unlimited energy supply.

After this idea came to mind, Ye immediately discussed it with Yumi and the others, and confirmed that the method was indeed feasible.

The infinite chakra possessed by those resurrected through Edo Tensei can be used in devices. The only drawback is that the output of this chakra is not as high as that of the Tailed Beasts, and the Edo Tensei body cannot be maintained for very long.

Even after some improvements, the Impure World Reincarnation technique can only be maintained for 24 hours. Once the 24 hours are up, the Impure World Reincarnation technique must be used again.

Although this was a bit troublesome, Ye didn't mind.

After all, apart from the high consumption of white absolutist cells, this method is almost free labor with no cost, so how could Ye not be satisfied?

Yumi summoned four White Zetsu cells from the scroll, then took out four glass containers filled with flesh and blood tissue and quickly formed hand seals.

"The art of reincarnation from dirty soil!"

The four White Zetsu cells seemed to sense the impending terror. Lacking intelligence, they began to struggle instinctively, but in the next moment, countless layers of impure earth completely enveloped their bodies, forming four figures dressed in the uniforms of the Hidden Mist Anbu.

Yumi took out four talisman kunai and placed them into their bodies, activating the spell.

The four of them looked somewhat confused, but they quickly regained their senses.

"Is it our turn to work again?"

"It's our turn to profit, and I wish it were me every day, since I wouldn't feel tired or exhausted."

"Twenty-five days left! Let's keep going!"

"Lord Yumei, you promised to revive us after we completed a full month of work, so please don't go back on your word."

The four Kirigakure ANBU members spoke in succession, seemingly unsurprised by Yumi's Edo Tensei resurrection, as if they had long been accustomed to it.

"Don't worry. The Fourth Hokage is right here. Even if I break my promise, the Fourth Hokage won't lie to you."

Yumi chuckled, and only then did the four notice Yoru's presence, who was wearing a divine robe. They all respectfully greeted Yoru.

"I didn't expect the Fourth Hokage to be here too!"

"Lord Mizukage, I have twenty-five days left to complete the project. Please ask Lady Yumi to call on me as often as possible!"

"I want me too!"

"I'm sorry, everyone." Night sighed softly, shook his head, and said, "As the Mizukage, I should have revived you immediately, but all of this is for Kirigakure, so I can only ask you to work a little harder."

"No hard work, no hard work!"

"Yes, Fourth Hokage, we are originally people of Kirigakure, so it is only right for us to dedicate ourselves to the village. Moreover, Fourth Hokage, you are going to revive us and give us a second life. We should be thanking you, Fourth Hokage!"

The four Edo Tensei Kirigakure ANBU spoke in succession, their eyes filled with gratitude.

If it weren't for the night, they would have already died under Kushina Uzumaki's Tailed Beast Ball and fallen into eternal slumber in the Pure Land of the Dead. They would have had no chance to return to this world, let alone be reborn.

You should know that going out to carry out an A-level mission can take ten days to half a month, and there are all sorts of life-and-death crises, and the reward is only a few hundred thousand taels.

They only need to continuously supply chakra for a month to be able to revive, which is already a blessing for them!

"Alright, alright, once you meet the conditions, the Fourth Hokage will arrange your resurrection. Let's get to work." Yumi clapped her hands and said, "Just like last time, I'll take control. That way, it won't matter if your consciousness is dormant, since this is a 24-hour job."

"Yes, thank you for your trouble, Lady Yumi!"

The four Kirigakure ANBU members readily agreed. Yumi formed a hand seal, and the four of them trembled. Then, like puppets, they mechanically walked to the device and began to transfer chakra.

"Thank you for your hard work, Yumi."

Ye gently stroked Yumi's red hair.

As the person in charge of the Night's Soul Experiment, this young lady has worked incredibly hard these past few months, not only conducting research but also personally handling almost everything.

If it weren't for the powerful physique of the Uzumaki clan, Ye would have worried that this girl might have collapsed from exhaustion!

"I'm fine, Lord Ye."

Yumi gently rubbed Ye's palm, revealing a kitten-like, delighted, squinting smile.

Being able to share Lord Ye's burdens is something that motivates me, so how could it be hard work!

This workload is simply not enough! Lord Ye is just too kind to me. If I could have Lord Ye constantly urging me on with a little whip while I'm working, I would be even more motivated!

The image involuntarily flashed into Yumi's mind, and the smile on her face gradually turned rosy and strange.

Seeing this, Yoru, who knew Yumi's strange nature, naturally understood that the little girl was thinking about some random things again. Helplessly, he pinched her little face and said as he walked away.

"With the Chakra Tower in place, the transformation of Kirigakure into a spiritual land is gradually gaining momentum. The Shinigami can now restore and enhance their spiritual power by absorbing spiritual particles within Kirigakure."

"Once I find a new source of chakra, or improve the Impure World Reincarnation technique, you should be able to relax a lot. But at this stage, I may still need your help to perform the Impure World Reincarnation."

"It's alright, Lord Ye, it's just a trick..."

"The Yondaime."

Suddenly, Yagura, dressed in a white haori, appeared beside the two of them, his expression solemn, and spoke in a deep voice.

"Something happened."

"Ok?"

Ye paused slightly, as if sensing something, and frowned slightly.

The next moment, he and Yumi disappeared from the spot.

When they reappeared, the two were already in an open space.

Several figures of death were present, including several captains, and their gazes were all fixed on a figure in the center of the open space.

It was a huge and ugly monster.

It was entirely black, draped in a black robe resembling a witch's cloak, and its face bore a white mask with a long nose like a clown.

Most importantly, there is a circular hole in its chest, as if it has no heart!

"It was just a hoax after all!"

Looking at the monster, Night's gaze fell on the Grim Reapers present: "It seems you've come up with something extraordinary."

He is the source of all death power in this world, and can clearly sense everything about all death gods.

Night could sense the 'Shinigami Power' emanating from this Hollow, and it was precisely because of this power that this Hollow was able to exist.

But the source of this power is not him!

"The Yondaime."

Upon seeing Yoru and Yumi arrive, the Grim Reapers present all nodded slightly in respect.

"Tell me what exactly happened."

"Uh...we're not entirely sure about the specifics either."

Hozuki Gengetsu organized his thoughts and said, "It was Shisui who released his soul, and then those souls underwent a slight change, and began to fight and devour each other. Then, not long after, this monster appeared."

“This guy has no clear self-awareness, only the instinct to kill and devour, like a wild beast,” Shisui said in a deep voice. “He’s very similar to that guy, but that guy has intelligence.”

Ye Mingbai knew who the guy Shishui was referring to was.

悟！

"You mean, the reason this guy appeared is because of the Box of Bliss?" Ye Xu squinted.

"It must be because of that thing. After all, I've released my soul many times, and only this time did something unexpected happen. The only difference between this time and the previous times is that there's an extra Box of Bliss," Shisui pondered.

Night glanced at the Elysium Box, which stood motionless in the distance and exuded an eerie aura, and began to understand the general logic behind what had happened there.

After Shisui released the souls from the Rinnegan, those souls were bound within Kirigakure under the influence of the Rejuvenating Ground. However, Shisui did not notice the existence of the Box of Bliss when he released the souls.

This resulted in those souls, while bound to the mortal world, coming into contact with the Box of Bliss, thus activating their own power.

It is something that Ye has long known that strong emotions can stimulate the power of the self contained in the soul, and the Box of Bliss can just happen to stimulate the deepest fear in a person's heart!

Therefore, under the influence of the Box of Bliss, and tormented by endless fear, resentment, sorrow, and pain, those souls eventually went mad, and under the influence of the death god's power that permeated the entire Hidden Mist Village at night, they were gradually transformed into Hollows.

The mutual devouring of the void eventually transformed into the Kyrian before us.

"A special item..."

Night murmured to himself, finally understanding why the Death God System referred to this thing as a special item.

This thing is the key to the creation of the void in the night!

Hollows are not entirely useless to Yoru; if properly managed, they can be comparable to top-tier Shinigami!

Because the cost of creating them is far lower than creating Shinigami, mass production of Shinigami is absolutely impossible until Yoru finds a tool in the Naruto world that can replace 'Asauchi'. But Hollows are different.

Creating these creatures requires no effort at all.

These fallen souls will give birth to the most powerful individuals through endless mutual devouring!

"We might be able to have a real undead army."

Night murmured softly, her gaze shifting from the Box of Ecstasy to the Kylian before her.

The monster was not killed by Shisui and the others; they were merely bound with binding spells.

Sensing the night's gaze, the creature opened its massive jaws, instinctively wanting to roar, but its innate instincts told it that this creature was terrifying enough to only produce a few sharp, fearful hisses.

"In the world of Bleach, Hollows can be purified by the Shinigami, thus ascending to heaven and being reincarnated."

"So in this world..."

Under everyone's gaze, Yoru drew Hyōrinmaru from his waist: "Although your research value is very high, as the first Hollow in this world, I can give you the opportunity to set a precedent for the cycle of life and death!"