"Don't worry, I'm very strong." Kazuki's expression hardened.
"Grandma Mito might not be able to maintain the fight for long, so I must resolve this battle as quickly as possible. So, I'm sorry, father, and Second Hokage, but I'm going to fight seriously now."
As Kazuki's words fell, two pitch-black rods appeared in his hand. His figure flickered, and he appeared behind Kagami, stabbing the black rods into Kagami's tailbone area at an unimaginable speed, pinning him to the ground. Then, as if still not reassured, he pulled out three more black rods and inserted them into various parts of Kagami's body.
Unlike Truth-Seeking Balls, Kazuki could create as many black receivers as he wished with a mere thought. After all, even Nagato could freely create them. Such creations of Yin-Yang Release are practically inherent once one awakens the Rinnegan. The future Sasuke could also do it, he just disdained using black receivers.
However, this scene made Tobirama's eyelids twitch. As a Ninjutsu master and research master of the Ninja World, he immediately recognized that the black rods were creations of Yin-Yang Release, and he did not possess such a level of Yin-Yang Release.
Although his older brother was powerful, he certainly couldn't possess it. After all, Hashirama's Yang Release was too powerful, affecting the Yin Release within his body, making it impossible for the two to balance. Let alone creating a balance, even for Hashirama to use Yin Release was an extremely difficult task.
He hadn't expected that Kazuki, a Uchiha, would have such mastery in Yin-Yang Release.
Logically speaking, the Uchiha clan's Sharingan is the ultimate Yin Release. Therefore, for an Uchiha to master Yin-Yang Release, the difficulty is not ordinary. This child of Kagami is truly a genius.
However, speaking of which, Kazuki hadn't even used Mangekyo Sharingan, yet even with a three-tomoe Sharingan, Tobirama still felt Kazuki's unfathomable ocular power.
As a powerful individual who had fought Izuna to the death, and had also met Madara, Tobirama could clearly feel that Kazuki's ocular power rivaled Madara's Mangekyo Sharingan, and even surpassed Madara's.
Such news made him dumbfounded.
The strongest individual to appear in the Uchiha Clan before was Madara, and Madara's Mangekyo Sharingan had surpassed ordinary Mangekyo Sharingan. Madara, possessing ocular power that would never go blind, had likely surpassed the Mangekyo Sharingan.
But what was going on with Kazuki?
He only had a three-tomoe Sharingan, and the Chakra on Kazuki's body was even greater than that of his elder brother.
Could he be the reincarnation of the Sage of Six Paths?
For some reason, Tobirama could feel a slight similarity in Kazuki's aura to Hashirama, yet it was different from Danzo. Danzo had transplanted Hashirama's cells, but Kazuki was not like that.
What exactly was going on with Kazuki?
After dealing with Kagami, Kazuki turned his gaze towards Tobirama. Tobirama showed no fear at all. He had great confidence in himself, or more accurately, in his Flying Thunder God Technique.
Izuna had died by his Flying Thunder God Technique back then. If he hadn't killed Izuna, the war between Madara and Hashirama might not have concluded.
It was precisely because of Izuna's death that the Uchiha clan lost its true leader. If Izuna were still alive, Konoha probably couldn't have been established. In Tobirama's view, he was the true hero.
"Brat, be careful. You are fast, but my Flying Thunder God Technique is invincible." Tobirama warned Kazuki, while simultaneously launching an attack on him.
"Flying Thunder God Technique? Coincidentally, I'm also very proficient at it." Kazuki showed a meaningful smile.
Immediately after, he vanished from his original spot. A spatial fluctuation occurred, and he appeared not far from Tobirama. Lightning flickered on the Sword of the Thunder God as he thrust it towards Tobirama.
"Flying Thunder God Technique, when did you leave a Flying Thunder God Mark on me?" Tobirama was utterly shocked.
He quietly sensed for a moment and found that not only was he marked, but even Hashirama had been implanted with a Flying Thunder God Mark. At the same time, Hiruzen also had the aura of a Flying Thunder God Mark on him.
Tobirama hadn't thought about this before, not because he lacked a keen sense for battle, but because he didn't believe anyone could learn the Flying Thunder God Technique.
He would rather believe that Kazuki had learned a new space-time Ninjutsu than believe that the Flying Thunder God Technique had been learned by someone else.
Back then, it wasn't as if he hadn't taught the Flying Thunder God Technique. Not only Hiruzen and Danzo, but even Kagami had tried to learn the Flying Thunder God Technique, and even Hashirama had failed to learn the Flying Thunder God Technique. Therefore, in Tobirama's heart, the Flying Thunder God Technique was very likely to become obsolete. No one else could learn it except for him.
However, he never expected that the Flying Thunder God Technique not only hadn't become obsolete, but someone had learned and mastered it. Most crucially, this person was a Uchiha. This filled Tobirama's heart with mixed emotions.
Using the Kenjutsu he created, using his Sword of the Thunder God, using his Flying Thunder God Technique, this was clearly his true successor.
But the problem was, why was he a Uchiha?
"Of course, it was during our first contact, Second Hokage. You are too arrogant. Do you think no one else can learn the Flying Thunder God Technique besides you?"
Kazuki attempted to stab a black receiver into Tobirama's body, but the latter's reaction speed was extremely great, narrowly dodging his attack.
Fortunately, at this moment, Danzo no longer had the mind to concern himself with the battle here. He was currently engaged in a love-hate battle with Hiruzen.