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"Kushina-sensei, I'm going to start carving the seal." Haori said.
In a room on the second floor, besides Kushina, only Haori and Minato were present. Haori was about to carve the final part of his sealing barrier onto Kushina's back.
"Go ahead."
Kushina said. Since she had accepted Haori's explanation, she no longer hesitated. The sealing jutsu was the last resort to prevent the tailed beast from escaping. In fact, Kushina thought that if it really came to the point where the jutsu needed to be activated, her fate could be foreseen.
"It's just a precaution. That kind of thing won't happen."
Minato said from the side. His expression was still very gentle, but he couldn't help but worry in this situation.
"Then, I'll start."
Haori nodded at Minato, then began carving the jutsu.
Mutual Multiplication Composite Four Symbols Seal. That was the name of the sealing barrier that Haori had set up.
And the key to activating the sealing barrier, Haori was about to place it on Kushina.
It was both the key to activation and the only real safety measure after the jutsu was activated. After all, Haori's jutsu wasn't designed to deal with the tailed beast.
The principle of the jutsu was very simple. It was still just an improvement on the Four Symbols Seal.
Whether it's the Four Symbols Seal or the Inner Four Symbols Seal, they're actually inward-binding seals. They restrict or even destroy a certain space with great binding power. That's their function.
To compare it, this binding is like using immense gravity to attract and lock certain things within a certain space.
The jutsu carved onto Kushina, the outermost layer is the ordinary Inner Four Symbols Seal. But inside, it's a different Four Symbols Seal.
After many complex transformations and experiments, Haori successfully reversed the Four Symbols Seal, turning the "gravity" into "repulsion," to offset some of the effects of the Inner Four Symbols Seal, isolating Kushina from danger.
If you were to talk about hand seals, the entire sealing jutsu has two parts. One part is on Kushina, and the other part is in the external environment. But structurally, the entire jutsu is composed of three parts.
Simply put, this whole thing is just creating a safe space inside the Inner Four Symbols Seal. The Inner Four Symbols Seal will function normally outside the safe space, but the inside will be unaffected.
With all these measures, it will ensure that Kushina inside will be safe after the jutsu is activated.
When the sealing barrier is activated, the Inner Four Symbols Outer Wall will open on the outermost layer, and Kushina will be in the isolated space inside the Inner Four Symbols Seal.
A safe isolated space.
There's the Inner Four Symbols Seal on the outside, and a safe space on the inside. As for the middle part, it's the functional part that keeps the barrier going.
The ordinary Inner Four Symbols Seal only lasts for an instant, from activation to completion. But this jutsu will last for at least ten minutes.
So, only a large chakra like Kushina's can support this kind of jutsu.
And compared to the ordinary Inner Four Symbols Seal, this jutsu is also different in scale.
Let's say, due to some accident, Kushina is inadvertently taken away from this location. Then, relying solely on the jutsu on her body, the barrier space that opens will be the same size as a normal Four Symbols Seal. But in this place, with the help of the massive jutsu that Haori set up beforehand, plus Kushina's chakra, the space can instantly expand to three kilometers.
And on a deeper level, if the Nine-Tails' chakra is extracted, the scale will increase to over ten kilometers.
So, once this jutsu is activated, everything within that range, except for Kushina, will be reduced to nothingness. That's why Haori called it National Land Creation.
This incredibly long duration and the possible extreme scale, a truly terrifying effect, is actually only designed to counter one jutsu:
Kamui.
The method and the idea aren't particularly clever, but simple and brutal is also effective.
Haori can't remember how long the right eye Kamui's intangibility ability lasts, but ten minutes should be enough, right?
He focused intently on his work. In a short time, the jutsu had spread across Kushina's entire back. Her skin was almost completely hidden.
However, at this moment, Minato grabbed Haori's hand, forcing his work to come to a temporary halt.
Minato had a good reason to stop Haori. Because the jutsu that Haori was drawing on Kushina's back was different from the one he had shown them beforehand.
The change was very small, but Minato still noticed it at a glance.
In the jutsu that Haori had shown them beforehand, this sealing barrier could only be activated by Kushina. The timing or whether to activate it was completely up to her. But now, there was more than one person who could activate the jutsu. There was a second person.
That second person was naturally Haori himself.
If this change was implemented, Haori could also activate the jutsu on Kushina's body when necessary. And the jutsu would interact with her Eight Trigrams Seal, forcibly extracting the Nine-Tails' chakra, and in turn, locking down the entire space on the largest scale.
At this moment, Minato understood. This jutsu wasn't designed to deal with the Nine-Tails after it broke free from the seal. No wonder it used some of the Nine-Tails' chakra.
This jutsu was designed to deal with an unknown enemy who might try to steal the tailed beast during this opportunity.
The reason Haori placed the jutsu on Kushina's back was twofold. First, the jutsu was indeed very complex. Second, he didn't want Kushina to see the changes in the jutsu.
Minato could see this change. Kushina could naturally see it too. So, Haori wouldn't let Kushina see it.
But if Haori forcefully activated this jutsu, with its complexity, it would definitely drain his chakra. Then, in this scale of destruction, how could he escape?
Haori turned his head, still looking at Minato with that calm gaze. Then, he nodded at Minato again.
"Is it finished?" Kushina asked, noticing that Haori had stopped.
Minato finally released Haori's hand.
"Not yet, but it's almost done."
Haori replied. His voice sounded unchanged.
"Then, why did you stop?"
"Well… I was looking at the cherry blossoms. Kushina-sensei, if you look forward, you can see the cherry blossoms."
"Oh, summer is coming. These are the last cherry blossoms of the year…"
"Wait, is this the time to be looking at cherry blossoms?"
Kushina thought that with such an unreliable disciple, she would catch a cold.
From this angle, the cherry blossoms in the setting sun had an eerie, blood-red color. But human blood could make them even redder.
This blood could be the enemy's, or it could be his own, Haori's.
But ultimately, this was still a last resort. Hopefully, it wouldn't be necessary.
To be precise, before using this method, Haori and Minato should have taken care of the enemy.
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