Kazuki chose to challenge Guy first. Eight Gates Guy was very powerful. Kazuki had a premonition that even Hashirama at his peak, if he couldn't endure the burst period of the Gate of Death, would probably die.
However, Gate of Death Guy, while difficult to deal with, was also easy to deal with.
Especially when Kazuki's physical condition was superior to Gate of Death Guy's even without activating the Eight Inner Gates.
And as long as one possessed a special mechanism, dealing with Guy was almost instantaneous.
Many people called Guy the man who almost kicked out the ending, but in reality, if Madara hadn't wanted to experience the power of the Gate of Death and personally endured that kick, and if Minato and Kakashi hadn't dealt with the Truth-Seeking Ball for Guy, Guy wouldn't have been able to attack Madara. And Madara would not have been harmed by Guy at all.
As someone who had the Rinnegan, Kazuki clearly understood the counter-effect of 'mechanic' characters.
(Mechanic means abilities/hax.)
Madara was a counter to Guy. And Kazuki was also a counter to Guy.
Even if Guy activated the Gate of Death, Kazuki, relying on his Limbo Clones, would still utterly defeat Guy.
Madara's ocular jutsu, when facing Six Paths level enemies, might not be very effective, mostly used for defense, but when facing opponents below Six Paths level, it was almost a one-shot kill.
Even ordinary Sage Mode or Eternal Mangekyo Sharingan could not sense their existence.
Unless one possessed Six Paths Sage Mode or Rinnegan, or a Byakugan of the Ōtsutsuki level, it was impossible to see through the Limbo Clones.
Kazuki had always been a supporter of the theory that Rinnegan Madara was stronger than Hashirama.
Perhaps in many people's eyes, even with Rinnegan activated, Madara and Hashirama wouldn't be too far apart. This was seen from the battle between Edo Tensei Madara and Hashirama, and also from the future battles between Sasuke and Naruto.
They believed that only the reincarnation of Indra Chakra with Rinnegan activated was qualified to fight the reincarnation of Asura Chakra. But keep in mind, Limbo Clones are almost unresolvable below the Six Paths level.
Even Hashirama, who mastered a Sage Mode superior to Naruto's, couldn't sense them. If he couldn't sense them, he would die.
Naruto in Sage Fox Mode was actually no weaker than Hashirama at his peak, but he was still instantly defeated by Madara with a single glance.
This was the superiority of 'mechanic' characters. Just like the future Sasuke, he was also a 'mechanic' character. When facing opponents weaker than himself, he could strike hard and easily kill the opponent.
But when facing powerful enemies whose 'mechanics' were superior to his own, such as Kaguya, then Naruto was needed to play the main role.
Facing Gate of Death Guy, Kazuki easily dealt with him with just a single glance. This allowed him to gain Guy's taijutsu insights.
In many people's minds, Guy's most valuable asset should be the Eight Inner Gates. But in reality, Eight Inner Gates' amplification was not very significant for a powerful individual of his level.
Things like Six Paths Sage Mode are diametrically opposed to the Eight Inner Gates, taking a different path entirely.
One requires stable Chakra operation, but after using Eight Inner Gates, Chakra becomes incredibly violent, making it difficult to stabilize the Chakra. Therefore, Eight Inner Gates had no effect on Kazuki at all.
Moreover, Guy's father, Duy, had already given Eight Inner Gates to the village. If he really wanted to learn Eight Inner Gates, he could learn it at any time.
Instead, Guy's taijutsu experience and insights were quite helpful to him.
Kazuki's taijutsu was very good. Even with just wielding a sword, he would be almost second to none in the Ninja World.
This refers to his Kenjutsu, or ninjutsu-taijutsu abilities, but in terms of pure taijutsu, Kazuki didn't consider himself the most outstanding.
Of course, if he chose to simply overpower his opponents, then there would be no one in the Ninja World who could stand against him.
Guy's taijutsu experience might not suit Kazuki, but it was a great supplement.
These taijutsu experiences could provide him with some valuable insights in the future.
After defeating Guy, Kazuki turned his gaze to the remaining four Six Paths level powerhouses. After a slight hesitation, he focused on Sasuke, who was probably the weakest among these four.
To say Sasuke was the weakest Six Paths level was not entirely true. The title of the weakest Six Paths level being certainly belonged to Obito.
Sasuke just had difficulty fighting powerful enemies whose 'mechanics' were superior to his own. But if he were to fight ninjas below the Six Paths level like Obito, he would definitely not lose.
Unlike Obito, who actually lost to Naruto and Sasuke, who were not Six Paths level at the time, and also the Allied Shinobi Forces.
Of course, Kazuki was also very much looking forward to a battle with Sasuke. He wondered whether this Six Paths Yin Power Sasuke or the Sasuke he had encountered before was stronger.
It should be his own son, Sasuke, who was stronger, right?
After all, his son grew to Six Paths level through his own strength, not by relying on a power-up from the Sage of Six Paths, activating Indra Chakra, and barely entering Six Paths level.
With a thought, Kazuki entered the combat arena.
Looking at the arrogant and haughty Sasuke, a smile appeared on his lips.
This was the Sasuke he knew. His son was just a similar individual.
However, let him witness the so-called Six Paths Yin Power. After all, this was the power of the Sage of Six Paths. It was also the power of the Sage of Six Paths after entering the Pure Land.
Let's see how much he had grown over these thousand years.
Sasuke had a cold expression. Upon seeing Kazuki, he charged directly towards him without a word.
Charging forward without a word was Sasuke's style.
He was very good at analyzing information during battle, and could be considered someone who fought with his brain, but he couldn't help but go wild once his strength increased.