Both Kakashi and Zabuza saw a giant dark orb of pure chakra expanding a little away from them where both Yagura and Sukuna were fighting.
Yagura in his Biju mode was easily visible because of how big Isobu's form was. However, Sukuna, darting around all over the place, was much harder to spot. That was how he was hiding his techniques from others who had time during their fight to look around, checking how he was faring against a Jinchuriki.
Both Zabuza's and Kakashi's hairs stood on end sensing the ridiculous amount of chakra emitted by Isobu's Biju-Dama.
Kakashi's mind churned, quickly forming the right course of action. There was no way he could save Sukuna in time; he had to give up the boy. To think that boy was able to push Yagura to this degree.
Kakashi was in awe, but the matter at hand was that he couldn't save the boy. His priority should be Naruto.
Since Zabuza himself wasn't planning on being suicidal and keeping Kakashi back with him, Kakashi rushed toward Naruto's place, making Shadow Clones on the fly.
At the expense of the majority of his chakra, Kakashi formed three clones which he sent after Sasuke, Sakura, and Karin, while he himself went after Naruto to take him away.
Zabuza was pretty similar. He quickly formed hand signs to manipulate water, planning on making a wall before the damn nuke exploded on their faces.
Within seconds, Isobu was done creating the bomb—a half-powered Biju-Dama created with the intent to only destroy things around him. He had to keep in mind that Zabuza and his team were not that far away from him.
And then the black ball of death was on its way toward Sukuna, who was frowning harder than Sunday morning when they have dedicated family time in the Haruno household.
"Oh no… no you don't!" Sukuna rushed forward with all his speed, practically vanishing. Rather than avoiding the blast, he was charging at it.
Everyone braced themselves for the impact.
Then…
They waited.
Waited…
and waited a little more.
But nothing happened.
"What's going on?" From the Konoha rookies to the Demon of the Mist, everyone asked the same thing in their mind.
Once they dared to poke their heads beyond the safe walls of their defensive ninjutsu, they found that the giant ball of death which had been hovering over their heads not so long ago was now nowhere to be seen.
Both Sasuke's and Kakashi's Sharingan spun, trying to catch any hint of chakra on the battlefield, but nothing.
They could only feel a half-burned area, and at the end of that area stood a lone turtle of epic size, equally stunned at what had taken place.
And then…
BOOMMMMMM!
An ear-shattering roar of an explosion erupted from far away. They could feel the very earth shaking. It definitely took place very far away; however, the explosion was so devastating that its effects were felt even where they were.
"Where is Sukuna…" Sakura muttered at this point, her eyes darting around looking for her brother.
While she didn't catch the part where Sukuna went to fight against Yagura, her own fight occupied her. However, that explosion and chakra rattled her—not only her, but everyone.
Karin too realized that Sukuna wasn't there, and her eyes widened in dread.
Sasuke pursed his lips tight, already figuring out what might have happened, while Naruto's mind was still trying to play catch-up.
And just as the silence became too heavy, an object hit the ground not too far away from them.
"A kunai…" Zabuza's eyes narrowed.
Kakashi, on the other hand, felt a déjà vu feeling inside him. It was a normal kunai, nothing too special about it—except for that very familiar-looking fuinjutsu marking on its handle.
Before Kakashi's lone Sharingan eye deciphered the mystery behind that seal, like magic a figure appeared right where the kunai landed.
"Damn, that was close."
Once again, silence spread out. They knew this guy, of course. Sukuna.
Kakashi's mind stopped processing; however, he didn't need it anymore. He already seemed to know the answer.
"That technique." He felt his insides turn upside down. Memories buried deep inside him came soaring back.
"Sukuna!" Both Karin and Sakura cried out in relief seeing him back. They didn't care how.
"How is that possible? You're telling me this brat learned the Fourth Hokage's jutsu!?" Zabuza by now had caught up with what was going on, and his eyes were almost popping wide.
"Fourth's jutsu?" Haku, Suigetsu, and Kimimaro had no idea what that meant, nor did Sasuke, Naruto, Sakura, and Karin.
Only Kakashi and Zabuza realized what the boy in front of them had just done. Well, there was one more—Yagura himself.
When he saw his Biju-Dama vanish out of nowhere he was completely baffled, and now he knew what really took place. This was the Fourth Hokage's jutsu.
The Flying Thunder God.
This was the technique Sukuna came to learn after practicing and mastering fuinjutsu and Kamui for years.
The only technique so far which he could use with hand signs and chakra. All it needed was him mastering fuinjutsu completely, figuring out how to use said fuinjutsu with his Curse Technique, rocking his mind coming up with the right binding vows to fix the loopholes related to the difference between both cursed energy and chakra.
And lastly, practice.
A lot of practice.
He had five whole years to learn it, and he sure used that time well. Though he had to say that if he didn't have Kamui, then perhaps he might not have been able to do it. He was no space-time prodigy—that was Minato Namikaze or Satoru Gojo.
To understand how space itself works, one needs incredible spatial awareness. He would never have been able to pull it off without Kamui.
As for why learn this technique when he has Kamui? Well, Kamui was very good for defense, even offense—though Sukuna never actually used the offensive side, almost never.
Hiraishin provided a very quiet form of spatial transfer, one which could be actively used in battle. There was no reason not to learn it.
Especially when it was one of the few fuinjutsu-based techniques he could learn.
For someone like him, hungry for power, it would have been folly not to do it.
This was the exact jutsu he asked from Hiruzen.
Though he learned it a long time ago, using it openly needed clearance.
"Hey, I thought we were having a good time fighting. Then you had to use that attack." Sukuna glared at Yagura, who was looking even more angry.
Sukuna then looked around him; everyone seemed to have their attention on him now.
"Tch… its no fun anymore."
"Well, technically I shouldn't have dragged this fight this long. A single powerful cut at his neck should've sufficed earlier, but dang it… I really wanted to fight him. I train every day like a beaten dog whose tail is on fire, and ultimately all battles end with a single wipe of the finger." Sukuna internally grumbled at this.
Yagura didn't wait after that. He threw another attack at him with almost blinding speed. Only thanks to the perception of his Mangekyo was Sukuna able to react in time and dodge away.
"Sigh, at this rate I'll get my ass kicked with such a big stat difference…" Sukuna snorted and finally set his mind on taking the fight a tad bit seriously.
"I wasn't planning on using this right away, but whatever."
He tossed his glasses away, for the first time in a very long time revealing his eyes, which looked much like Kurenai's—red with only one single ring around his irises.
And then, with one hand, he tossed his semi-messy pink hair backward.
The moment he did that, cursed energy reserves hidden away for such a long time under a powerful binding vow came to the surface. Half of his cursed energy, which was locked behind, filled back, followed by another half as his reward.
His cursed energy shot to a whopping 150%.
This was his king's reserve—a binding vow he made with himself before he even got his Sharingan and only used once before.
The colossal surge of cursed energy reverberated, even making Kurama—who could sense malice—restless inside his seal.
For the first time, Yagura actually stepped back.
Sukuna smirked.
"Play time over."
~o~
A/N : So many of you will wonder why not just kill Yagura when he could have done it so easliy. Well the answer was already given before when Sukuna himself asked to spar against Kakashi.
He wished to get stronger and fight against powerful opponents. With that he can't grow. Even after 5 years of training, he can't put most of that to use unless he face someone strong.
As for Hiraishin, I don't see him not learning it when he is so power hungry. That hunger hasn't gone anywhere.
He had Kamui and 5 years to figure it out, so I do see Sukuna being able to do it.
Lastly of course, tell me honestly how many of you remember his Bidning Vow.
Again please tell me where I could improve. I'm actively trying to improve my writing so please point out what I'm doing wrong. I'll be grateful.
xxx
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