Kazuki was confident in temporarily boosting the strength of his close ones, much like how Hagoromo could grant power-ups to Naruto and Sasuke in the future.
Of course, the reason they could directly receive power-ups was due to the Indra Chakra and Asura Chakra within their bodies. Hagoromo mostly just stimulated their original latent powers.
After all, what's wrong with a father passing power to his son?
As for Mikoto, Rinka, and Kushina, they were all descendants of the Sage of Six Paths, with quite high bloodline purity, considered top talents in their respective clans.
Mikoto's bloodline was actually quite pure, her ancestors had produced Mangekyo Sharingan before, and both her grandfather and parents were very strong.
It could be said that among the younger generation of Uchiha, Mikoto's bloodline potential ranked among the top five.
Now, with Kazuki's guidance, Mikoto's strength was improving rapidly, not at all inferior to Nawaki, and even subtly stronger than him.
Mikoto had now also awakened her Sharingan to the three tomoe stage, which was quite remarkable for a thirteen-year-old. If she were any younger, Mikoto's body might not be able to keep up.
Rinka's talent was among the best in the Hyuga clan, possessing one of the purest Hyuga bloodlines.
The main family couldn't all be useless. In fact, their bloodlines were superior, and combined with the Hyuga clan's heritage, Rinka might very well reach Kage-level in the future.
As for Kushina, she was essentially a young Mito. Even Mito herself admitted that Kushina's talent was no less than her own.
As long as Kushina steadily got stronger, her future was promising.
If she could become the Nine-Tails Jinchuriki in the future, with Kazuki's assistance, controlling the Nine-Tails' power would likely be much easier than it was for Mito.
After all, Kurama now posed no threat whatsoever. For true powerhouses, Nine Tails offered some amplification.
The future Naruto, relying on half of the Nine-Tails and some Chakra from other Tailed Beasts, along with the Sage of Six Paths' gift, could become an overwhelmingly powerful statistical anomaly.
Honestly, the more one thinks about Naruto's performance in his battles against Kaguya and Madara, the more they feel that Naruto is truly powerful.
As for Sasuke, he was more of a tactical fighter, but he encountered Kaguya, who was stronger than him, so his performance was mediocre.
Once outside, after his Susanoo absorbed the Chakra of the Tailed Beasts, he gained the power to contend with Naruto.
This means that during the battle with Kaguya, Sasuke was very likely not Naruto's match yet.
Kazuki felt that he might need to research how to help Kushina, Mikoto, and Rinka with their bloodline powers.
If he could enhance their bloodline, or even enable them to revert to their ancestral forms, their future strength would be limitless.
Actually, if possible, Kazuki didn't want Kushina to become the Nine-Tails Jinchuriki, even though becoming the Nine-Tails Jinchuriki would make Kushina a top-tier existence below the Six Paths.
Of course, the prerequisite for everything was that the Nine-Tails could cooperate with Kushina, but becoming the Nine-Tails Jinchuriki would cause Kushina to be targeted by the Ōtsutsuki.
Not just the Ōtsutsuki, Madara was also not someone Kushina could easily contend with. Even with the Nine-Tails' cooperation, it would be no exception.
Kazuki could indeed help Kushina, but he couldn't protect her all the time, could he?
As for the so-called Nine-Tails Jinchuriki, do they even stand a chance against Madara? Isn't that something that can be resolved with a single glance?
For the true wielder of the Rinnegan, the Nine-Tails holds little significance.
However, with his current pure Ōtsutsuki bloodline, if he possessed the byakugan, could he awaken the Tenseigan?
Or could he merge the powers of the Rinnegan and the Tenseigan?
Or perhaps an eye could open on his own forehead, just like Shibai, who had the Byakugan, Rinnegan, and Black Eye?
Kaguya had the Rinnesharingan on her forehead.
This thing seems to be related to the Ten-Tails, but Kazuki wouldn't know since he hadn't eaten the Chakra Fruit.
"You seem to have undergone some changes. I feel a strong craving for your Chakra." Rinka said, hesitating for a moment before looking at Mikoto beside her, then at Kazuki.
As for Kazuki's Chakra, Rinka usually didn't look at it. Looking too much made her eyes hurt, she had never seen anyone with so much Chakra. This was simply not the amount of Chakra a normal person should possess.
Kushina and Nawaki's Chakra was already quite abundant, but it was probably less than one percent of Kazuki's total Chakra pool.
Speaking of which, perhaps even the Nine-Tails' Chakra wasn't as much as Kazuki's?
"Chakra?" Kazuki raised an eyebrow, this was something he hadn't considered.
He knew this might be related to the Ōtsutsuki clan's physique.
"It's an instinctive craving. I can't describe the specific feeling." Rinka said, looking at Kazuki with a subtle expression.
"I'm afraid the Hyuga clan will have a different feeling when they see you from now on."
"It might be related to the bloodline, right? I just awakened the Rinnegan, and my bloodline has undergone some changes."
"The Hyuga clan is descended from Hagoromo's brother, Hamura, and the eyes he possessed were essentially a mutated version of the Byakugan, Tenseigan."
"Theoretically, it's on the same level as the Rinnegan."
Kazuki pondered for a moment before sharing this information with Rinka.
"Tenseigan? Is it that eye?" Rinka frowned, quickly thinking of the legendary eyes in her clan.
"It should be. I heard Grandma Mito mention this before. It's highly likely that some methods were used to create the Tenseigan, but due to poor physical constitution, it led to a backlash."
"Just like our Uchiha clan, awakening the Sharingan too early isn't always a good thing. If the body can't keep up with the eyes, it will drag the body down. Many Kekkei Genkai illnesses come from this." Kazuki nodded slightly.
"Even if the Tenseigan is weakened, it's not something an ordinary Hyuga can withstand."
Rinka fell silent, and upon careful thought, it indeed seemed to be the case.
Those were eyes on par with the Rinnegan.