The Nine-Tails wasn't very interested in genjutsu games. Even games like Fruit Ninja, where it could fight in its original form, didn't hold much appeal.
At best, it was just rampant destruction. It might feel like "freedom," but even that was limited.
For the Nine-Tails, there was little true attraction.
Which made sense—games made for humans naturally wouldn't appeal to a Tailed Beast.
But Uchiha Kei wasn't about to let such a prime source of emotional value go untapped. If genjutsu games didn't work, what about more traditional ones?
Most importantly, the sealing space was already a unique domain—a variant of a consciousness realm.
Here, with the help of the spiritual network and various tools from the system, perhaps something incredible could be accomplished.
Kei had long wanted to test this theory—and now that the Nine-Tails was pacified and posed no immediate threat, it was the perfect time.
Soon, Kikyo was brought into the sealing space as well. With the Nine-Tails no longer resisting, the presence of "outsiders" was no longer forcibly rejected.
So, under the curious eyes of the three humans and one fox, Uchiha Kei began his great experimentation project inside the seal.
Side note: the chains of the Adamantine Sealing Chains were now removed from the Nine-Tails. Kei had proposed this, saying that if they were to work toward reconciliation, they needed to start with mutual trust. He believed the Nine-Tails wouldn't act out again—and hoped Kushina could believe in it too.
After some hesitation, Kushina agreed, out of trust for Kei.
Once freed, the great fox gave a proud snort and deliberately shifted its body to startle Kushina and Minato.
Seeing them tense up, it lay back down smugly and said, "Don't lump me in with you deceitful humans. You're always lying, always breaking promises. But I've given my word to that brat Kei—unless you wrong me again, I won't cause trouble."
This genuinely surprised Kushina and Minato. They were beginning to realize how much the Nine-Tails differed from their assumptions.
Kushina laughed, "Nine-Tails, you're actually not that hard to talk to! Why did you always yell at me before whenever I tried to talk to you?"
The fox scoffed, "I don't talk to idiots who don't know what's going on."
Naturally, the Red-Hot-Blooded Habanero immediately exploded. Her hair practically turned into Nine-Tails mode on the spot.
It took Minato's signature awkward-but-polite smile and a full-body hug to restrain Kushina—and prevent the Nine-Tails from ending up chained again.
Really, it wasn't unjustified that the fox kept getting bound by two generations of Uzumaki women. Being tsundere and foul-mouthed was a recipe for disaster.
In any case, that was the situation. The Nine-Tails' current position was quite similar to its future state post-reconciliation with Naruto. The space was peaceful, and it wasn't bound—just so long as it behaved.
Kei now made his move. He tried pulling out a can of system-brand soda—and succeeded. Due to the sealing space's nature, the things summoned here were both real and illusory. Meaning the impossible... could become possible.
Like enlarging the soda can.
There were limits, of course. But Kei took a 230ml can and enlarged it into a 23,000-liter mega cola without it bursting from pressure. Absolutely absurd. Physics didn't apply here.
He then asked the Nine-Tails to try it, to see if the taste and effects matched those in the real world.
For the Nine-Tails, a 23,000-liter drink wasn't huge—but it was big enough to hold and sip using its massive, dexterous claws.
Kei's antics stunned the three humans and one fox. No one could figure out how he managed it—even in a space this strange, it was insane.
After all, this space belonged to Kushina's body. Yet Kei's conjurations were simply beyond words.
All they could do was echo Minato's stunned admiration: "Only Kei could pull off something none of us could ever imagine."
Classic blind praise—but in this case, justified.
Kei had successfully linked the spiritual network directly with the sealing space. Only then could he pull in system-generated items.
These items, though tangible, were fundamentally "imaginary constructs" created by the idiot system.
And because they were constructs of fantasy, pulling and modifying them inside the seal became theoretically possible. Kei had just turned theory into reality.
The Nine-Tails tried the soda. Its eyes lit up. It gulped it all down in one go, burped loudly, and declared it delicious—unlike anything it had ever tasted. It even felt its energy recovering slightly.
While the effect wasn't major for a Tailed Beast, what worked on humans worked on it too.
Truly—"system-made, quality guaranteed."
Kei then pulled out other system foods and drinks—giant versions—and had the others try them as well.
For them, it was just for flavor. The side effects didn't kick in. Only the Nine-Tails benefited.
Still, for a being that had never tasted good food, even that alone brought tremendous joy.
For the first time, it thought, "Being sealed isn't so bad after all."
Next, Kei pulled out a flat-screen TV and game console—both system-made—and through a mix of spiritual network functions and sealing-space voodoo, modified them with pure idealism.
The result? Success. They could now run on chakra.
Kei loaded the console with classic mini-games—Tetris, Super Mario, King of Fighters, and more.
No custom work was needed. The spiritual network already had modules for these games. He just used them.
He handed the controller to the Nine-Tails—a massive one sized perfectly for its paws. The TV was giant too.
And soon, the fox that couldn't care less about genjutsu games… became addicted.
Especially to Tetris. Simple, intuitive, and satisfying—it captivated the Nine-Tails instantly.
Sure, it might like other games later, but right now, Tetris was life.
Its verdict: "The game's alright."
Very nonchalant.
But Kei could see the truth—emotional value skyrocketed, and even a golden spirit point dropped. The fox was just being tsundere again.
Success.
The Nine-Tails was hooked.
It wasn't a genjutsu game, but opening a new lane for special characters was perfectly fine.
Even Minato and Kushina were intrigued.
Sadly, those consoles couldn't be modified this way in the real world. They'd need to log into the spiritual network to play. Kei would just extract and construct the mini-game modules for them.
Still, genjutsu games held more appeal for humans. The reverse of the Nine-Tails' preference.
And with that, the Nine-Tails matter was settled.
Kei gave both Kushina and the Nine-Tails their own login ports for the spiritual network and briefed them.
Kushina was instantly interested. After leaving the sealing space, she immediately logged in—and succeeded. Soon after, the Nine-Tails followed.
But in the network, the towering Nine-Tails shrunk—down to roughly Minato's height.
Still huge by fox standards, but far smaller than its true form.
Kushina blinked in surprise, then grinned: "You're kinda cute like this, Nine-Tails. Makes me wanna cuddle you."
The Nine-Tails scowled: "Get lost. Don't treat me like some cute pet!"
Then Kei, Minato, and Kikyo logged into the shared spiritual network—and saw the current Nine-Tails.
After a moment of shock, their eyes sparkled.
"So cute!" they all said.
The Nine-Tails turned crimson with fury. Its pride as the mightiest Tailed Beast had been deeply offended. It immediately rage-quit the spiritual network, vowing never to return—unless Kei found a way to restore its original size in that world.
That was its vow. Its challenge.
Kei saw it clearly: the fox now looked like a general in a stage play, bristling with flags.
And with that, everyone returned to the real world.
Seeing that everyone was fine, the Uchiha guards breathed a sigh of relief and withdrew.
Minato and Kushina offered their heartfelt thanks. Only they knew just how much Kei had done for them tonight.
Words like "grateful" didn't begin to cover it.
If one day Kei ever needed their lives, they would not hesitate.
To Kei, this was incredibly fulfilling. Not only had he turned the Nine-Tails into a golden-point-generating machine, but he'd also changed the Namikaze couple's fate.
Given the Nine-Tails' current state of mind, even if Obito still tried attacking during Naruto's birth in the future, it would be impossible to extract and control the fox.
More likely, Kushina would immediately go golden mode and slap him silly—or the Nine-Tails would pour its chakra into her, creating a Tailed Beast Cloak beatdown.
The greatest crisis the Namikaze couple would face had already been resolved years in advance.
For Kei, this was the happiest and most fulfilling moment since his transmigration.
After all, Minato was the kind of friend who, in modern times, would scrape together 500,000 for his surgery bill without hesitation.
Thus ended tonight's operation.
Kei returned home, awaiting the next day.
That same night, Shizune returned to the Hidden Leaf, supporting a devastated Tsunade.
And at the border of the Land of Fire and the Land of Wind, the Sand delegation preparing to return encountered trouble.
Their number two, Sasori, vanished under cover of darkness.
Elsewhere, deep underground, Uchiha Madara glared in frustration.
He had just used up his last Fruit Ninja scroll.
Every time he challenged the hidden boss… he failed.
For the proud Uchiha Madara, this was a humiliation.
Simply put—he'd tilted. Hard.