The yin and yang of the Nine-Tails were like having life of their own.
Such chakra properties were beyond the comprehension of Minato and even the entire ninja system.
So, after noticing these qualities, he thought of another question.
Where did the special life forms with powerful chakras, such as the tailed beasts, come from?
Whether it was humans or other creatures in nature, they all had more or less "tribes" or families.
But the nine tailed beasts, although they were essentially similar in some ways, were all unique.
Perhaps if these questions could be answered, they could understand how the special chakra properties of the Nine-Tails formed.
Minato looked at Naruto in Kushina's arms.
The child's blonde hair and blue eyes were naturally inherited from Minato, but his facial features were very similar to Kushina's.
However, Naruto had three small whisker marks on both sides of his cheeks.
Just like the whiskers of the Nine-Tails.
Minato guessed that this feature on Naruto's face was caused by the Nine-Tails' chakra in Kushina's body.
This demonstrated the extraordinary nature of the Nine-Tails' chakra.
It not only transformed Minato's body but also affected the life conceived by the female Jinchūriki.
"How do you feel?"
Minato asked with concern. He had split the Nine-Tails in half and re-sealed it. Now, there was only half of the Nine-Tails in Kushina's body, so there would be no problem with physical suppression.
But since she had noticed these changes, it also meant that other aspects of the seal had been affected.
"I just feel that the Nine-Tails' chakra has become colder than before."
Kushina said. In fact, after the other Minato's soul had merged into his body, Minato also felt this a little.
Because the Nine-Tails in his body was also split into two halves through the Shiki Fuujin.
Seeing concern in Minato's eyes, Kushina smiled and said, "But you also know that the Nine-Tails' chakra is only half what it was, so now it can only remain dormant in my body."
She winked at Minato playfully. With the ability inherited from the Uzumaki clan, even the complete Nine-Tails could be suppressed by Kushina, not to mention the Nine-Tails that now had only half of its power.
"That's good."
Minato said, then took off his white Hokage robe, draped it over his arm, and said, "I'll be responsible for cooking tonight. You just stay with Naruto."
"I'm fine."
Kushina shook her head quickly, but Minato put his palm on her shoulder and said, "Just listen to me and stay with Naruto."
Today's re-sealing, although relatively smooth, had still required the Nine-Tails' chakra to be pulled out of Kushina's body, and she had to suppress the Nine-Tails during the process.
Even with her amazing physique, it wasn't so easy to recover from mental exhaustion.
It was like when Minato once used Flying Thunder God to kill hundreds of enemies in a row. Even if his chakra could be restored by the Nine-Tails in his body, the mental energy consumed couldn't be replenished so easily.
"Okay." Seeing that she couldn't persuade Minato, Kushina had to nod.
She lowered her eyes and looked at Naruto in her arms.
After so many years under Kushina's guidance, Minato's cooking skills weren't exceptional, but they were still acceptable.
He prepared a table of rich and delicious dishes for Kushina and himself.
After dinner, Minato continued observing Naruto's condition.
The child was still too young, but with him and Kushina there, and the strength of the Eight Trigrams Seal, there would naturally be no problems.
Kushina accompanied Naruto and slept together. After seeing that the two were asleep, Minato closed the door quietly.
He temporarily stayed in the room where his parents had lived before they died.
After entering the room, Minato didn't fall asleep immediately but set up protective barriers throughout the entire space.
Then, Minato sat down cross-legged and slowly closed his eyes.
As his eyes closed, all his energy focused inward.
Minato was surprised to find that he could now use his mental power to observe the flow of chakra in his body. At a subtle level, he could even perceive individual cells.
This ability wasn't uncommon in Konoha, because both the Sharingan and the Byakugan could do this.
But for ordinary ninjas, this was an ability that was difficult to acquire through hard work alone.
The power of kekkei genkai was reflected in this.
At this time, Minato could observe himself through mental power, though he couldn't do the same with others.
Gradually, he finally noticed some changes in his body.
After a period of observation, Minato saw that the activation of his own cells had reached an amazing level.
For ninjas, cell activation directly affected the body's reaction ability, strength, and speed.
The secret technique of the Cloud Village's Night Moon Clan was to stimulate the activation of body cells through lightning chakra to strengthen these three abilities.
However, using that secret technique required a strong innate physique; otherwise, it couldn't be endured.
Moreover, this activation was only temporary.
But now, the activation of Minato's cells seemed to have infinite energy, with no sign of weakening at all.
This explained why his own chakra volume had doubled in such a short time.
Through this cell activation, Minato's physique was rapidly strengthening.
At this time, in terms of physical strength alone, Minato was no less powerful than the Third Raikage of the Hidden Cloud Village.
The Third Raikage was the person with the strongest physical prowess among all the ninjas Minato had encountered.
If Minato hadn't developed techniques that could touch the power of time and space, it wouldn't have been easy to defeat the Third Raikage.
With Minato's current physique, he could completely heal from ordinary injuries in a short time.
The strong vitality in the Nine-Tails' chakra was something Minato hadn't paid enough attention to before.
With this powerful vitality, chakra could be quickly refined.
Although the chakra of the tailed beast was powerful, it wasn't truly infinite.
The surprises that the power of the Nine-Tails brought to Minato were more than just these.
After pondering for a while, Minato slowly opened his eyes.
He felt something stir in his heart, and his mind focused slightly.
"Hmph!"
At this moment, a cold snort came from the Nine-Tails deep in Minato's consciousness.
Deep red chakra flowed out from Minato's pores, forming a thin film coat with chakra bubbles surrounding his body.
This was the same tailed beast cloak as the Eight-Tails Jinchuriki, Killer Bee!