"Flying Thunder God is already level four…"
Jin couldn't help but sigh softly.
The Flying Thunder God Technique was his primary investment target.
Even though he hadn't managed to loot many space–time ninjutsu for direct experience, sheer volume made up for it.
[Legendary Trait: Flying Thunder God Technique (Gold) Lv.4]
Instantly teleport between objects marked with the technique (maximum range: 400 meters).
Chakra cost per teleport: 90.
Note: Planting a technique mark consumes 10,000 chakra.
Four hundred meters!
Compared to the initial thirty meters, that was more than a tenfold increase!
If he planted marks all over Konoha, then with his current chakra reserves, he would truly be able to teleport at will.
With a thought, a small map slowly unfolded before his eyes.
Once expanded, it revealed Konoha Village in its entirety.
Countless green dots densely covered the display.
They blanketed nearly all the main roads of Konoha, as well as most areas along the Naka River.
As for the Uchiha clan compound?
It was practically airtight.
So green it practically glowed.
The 10,000 chakra cost per mark sounded high, but to him, it had long ceased to matter.
"Big brother… are you a ninja?"
Just as Jin was pondering this, Naruto—now full—suddenly looked up at him with sparkling eyes.
"Can you teach me how to train?"
"Teach you how to train?"
Jin blinked, and a faint crimson glint flashed deep within his black pupils.
Excitement.
A four-year-old Naruto making this request—wasn't that basically asking to be beaten?
Truly worthy of the Crown Prince. Even his actions were so considerate.
Jin had been wondering how to defeat Naruto properly, and here the kid was, delivering himself.
Smiling, Jin extended a hand.
"I won't teach you—but we can have a spar."
"You don't have to hold back. Don't worry about hurting me."
A spar?
At those words, Naruto's eyes shone even brighter.
Didn't all the stories say that fighting was the best form of training?
So after clumsily striking a starting pose, he charged straight in.
"Haha! Big brother, watch out!"
His speed wasn't fast—
But it wasn't slow either.
In Jin's eyes, Naruto's movements were no different from slow motion.
Jin easily sidestepped, reached out with one hand, grabbed Naruto by the ankle, and tossed him aside.
Splash.
The kid fell into the water.
But he didn't give up.
He scrambled up and charged again.
Punching.
Kicking.
Grabbing.
Biting.
A child that young had no concept of proper combat.
He only knew one thing—
That was how cats and dogs fought in the forest.
So he copied them.
And once again, he was tossed aside.
[Defeated Uzumaki Naruto. Attempting to copy trait…]
[Copy successful. Congratulations to the host for obtaining Legendary Trait: Nine-Tails Jinchūriki (Gold).]
Jin: ?
???
Nine-Tails Jinchūriki?!
This trait!
Saying he wasn't tempted would be a lie.
But… shouldn't a trait like this be impossible to copy?
Did this mean a Nine-Tails could also grow inside him?
"System, is this Nine-Tails Jinchūriki trait legit?"
[Confirmed.]
[Nine-Tails Jinchūriki (Gold): Allows borrowing the power of the Nine-Tails. Current usable power: One Tail.]
"So this Nine-Tails Jinchūriki trait only reflects the maximum power Naruto can currently withstand?"
"Does that mean if I copy the same trait again after Naruto grows up, its strength will be different?"
Seeing the explanation, Jin suddenly understood.
Wasn't this basically a growth-type trait?
The only difference was that the name stayed the same.
He nodded, suppressing his inner joy, and continued sparring seriously with little Naruto.
After all, this child's parents had given him a huge gift the moment they met.
That debt had to be remembered.
Of course, another reason was that the village was currently in chaos due to Kumogakure.
There was no spare attention to focus on a blond brat and a talkative teenager.
Time passed quickly.
2:30 a.m.
The night sky had grown oppressively dark.
Even the moonlight that once glimmered faintly had completely retreated behind the clouds.
Not a single trace remained.
Jin looked at the boy lying in front of him and smacked his lips.
"Heh… you actually exhausted yourself into passing out. You're quite something."
That's right—Naruto had fainted.
Of course, not from being beaten.
He had literally drained himself dry and collapsed from exhaustion.
Jin sighed and stood there hesitating.
He should leave.
But leaving Naruto here made him uneasy.
After a brief pause, he finally bent down, lifted Naruto onto his back, and slowly headed toward the village.
Weak Presence — on!
Swift Light Shadow — on!
Dynamic Sensing — on!
Byakugan — on!
Three-Tomoe Sharingan — on!
With all these traits layered together, everything within a hundred meters became a three-dimensional map in his mind.
Perfectly clear.
Then he stepped forward and vanished at speed.
Perhaps due to the late hour—or perhaps because of the Kumogakure incident—the ANBU that were usually everywhere in the village were now almost nowhere to be seen.
That made Naruto's return home unusually smooth.
As for the destination?
Even though Jin had never been there, he knew it by heart.
That distinctive two-story building stood out starkly from its surroundings.
Completely out of place.
Ten minutes later.
Creak—
Jin pushed open the heavy wooden door.
Inside, clothes and shoes were scattered everywhere.
Expired milk cartons covered the table, and the walls were stacked high with instant noodle cups.
A thick layer of them.
"…Sigh. A child with no one to look after him…"
Jin sighed softly.
"Doesn't anyone ever tell him that expired milk shouldn't be drunk?"
He turned to look out the window, his voice sinking suddenly.
"Don't you think so, Kakashi?"
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