Naruto: Unifying the Ninja World, Invaded by Naruto’s Team

"Strange?"

Imperial Kakashi was slightly puzzled.

"My self in this world, how can you be so wealthy?"

Ninja World Kakashi said with a hint of envy, thinking of the small apartment he lived in.

"Hmm? If I recall correctly, the earning potential of ninja and ordinary people should be vastly different. You're an elite Konoha ninja; your ability to make money shouldn't be weak. Why can't you live in a house like this?" Imperial Kakashi asked.

"Kakashi, in the ninja village era, wealth is controlled by the nobility. The pay for ninja missions isn't much—you should know this…" Imperial Sakumo said from the side.

"Sorry, it's been so long I kind of forgot. Never mind, let's not dwell on it. We'd better head inside."

Imperial Kakashi put his arm around Ninja World Kakashi's shoulder and walked in.

As Ninja World Kakashi stepped through the gate, he saw a neatly manicured lawn, a beautiful artificial waterfall, tall fruit trees, a swimming pool… and a grand, luxurious villa.

Among them, several servants moved about, watering plants and trimming flowers.

"This is really…" Ninja World Kakashi unconsciously touched his forehead.

The feeling that his counterpart in this world lived several times better than the Daimyo of various nations was infuriating! Living so extravagantly, wasn't he afraid his strength would decline?

'And… why were you born in the Empire while I had to be born in Konoha and suffer like that!'

'Why doesn't our world have a Senju Ryuji?'

Ninja World Kakashi thought with slight frustration.

The group soon entered the villa. Upon seeing two people sitting near the dining table in the living room, Ninja World Kakashi's expression froze.

"Rin…"

"Father-in-law, Kakashi, welcome back. Who's this person with you?"

Rin spoke gently to the group.

Beside her, a fair-skinned boy frowned:

"This new guy looks so much like Dad… could he be Grandpa's illegitimate child? My uncle?"

"Huh?" Ninja World Kakashi was stunned but quickly reacted:

"You're the son of my other self in this world?"

"This world?" The fair-skinned boy frowned.

"This is my counterpart from the world where the ninja village system still exists, as I've told you." Imperial Kakashi said, pausing before continuing:

"These two are my wife, Hatake Rin, and my son, Hatake Haruki."

"So you're Kakashi from another world! Welcome."

Rin immediately smiled, pulling out a chair and gesturing invitingly.

"Tch. Dad from another world? He's pretty tall, but why so skinny? And those clothes? Trying to act cool? At that age, still covering your eye?"

"We wouldn't do something so silly even at ten! And also! Why do you look so listless, so weak?"

Imperial Kakashi's son, Haruki, commented with a helpless expression.

"!"

Ninja World Kakashi's face twitched.

'This little brat!'

"Don't be so rude, Haruki!"

Imperial Rin gently patted her son's shoulder, scolding him.

"I'm just telling the truth! He looks super weak! I feel like he's not even as good as me!" Imperial Haruki said.

*BANG!*

A flash of lightning struck, and Ninja World Kakashi's vision blurred.

Imperial Kakashi appeared behind Haruki, smacking his head hard.

"You little brat! How many times have I told you manners matter!"

"I didn't say anything wrong! He really looks super weak! Someone like him in his world must be an embarrassment to the Hatake family! If he disagrees with me, let him beat me! Then I'll apologize!"

Haruki clutched his head and shouted, his face stubborn.

"You little brat!" Imperial Kakashi raised his fist again.

Ninja World Kakashi waved his hand and said:

"Wait! Let me fight him. I'm quite curious to see this kid's strength."

"This…" Imperial Kakashi hesitated.

"Not bad, Dad from another world." Haruki grinned.

"Huh? Why did it turn out like this… the food's just been prepared… we should eat first…" Imperial Rin said.

"Don't worry, Mom. I'll beat Dad from the other world in no time! The food won't even get cold." Haruki said confidently.

"Huh?"

"You little brat…" Ninja World Kakashi rolled his eyes.

◆━⊰✧⊱━◆

Outskirts of the Imperial Capital.

Ninja World Kakashi glanced at the open field around him and sighed unconsciously:

"I didn't expect your home to have a space-time ninjutsu formation. That's really convenient."

"It's nothing special. Many martial arts families in the Empire have such things, mainly to facilitate combat and training. After all, martial arts power is immense, and at high levels, the destructive force is too great. The Empire can't handle excessive damage." Imperial Kakashi explained from the side.

"Dad, step aside! I'm going to duel Dad from the other world!"

In the distance, Haruki drew the short sword from his back, pointed at Ninja World Kakashi, and shouted.

Hearing this, Imperial Kakashi quietly stepped to the side, joining Imperial Sakumo and Rin to watch.

Seeing this, Ninja World Kakashi pulled a kunai from his waist pouch and pointed it at Haruki.

"Dad from the other world! What's with this? As a Hatake, Grandpa's son! Where's your Hatake short sword? Or does your world's Grandpa not know about it?"

"No way… are you underestimating me?"

As Haruki spoke, his eyes sharpened.

Imperial Kakashi and Sakumo in the distance changed expressions.

Sakumo even frowned and said:

"My ninja world self… according to prior information, I died when Kakashi was 7. It's impossible I didn't teach him the Hatake swordsmanship by then…"

"Maybe he wants to test Haruki's strength." Imperial Kakashi said uncertainly.

After speaking, they fell silent, watching the two intently.

"You little kid, stop talking nonsense. If you've got skill, just beat me. I'll use whatever weapon I want."

Kakashi rolled his eyes, speaking reluctantly.

"Tch! How dare you underestimate me!"

Hatake Haruki's expression grew sharper.

Raising his short sword, he took a slow breath.

*SWOOSH!*

The next moment, a faint spark of lightning glimmered in his white hair.

"This!"

Ninja World Kakashi frowned.

"Huh…"

Another breath.

Lightning arcs began flowing over Haruki's body, his hair standing upright:

"Thunder Breathing Style! Third Stage! Next, Eight Gates! Gate of Closing, Open!"

With his final roar, Haruki's chakra surged violently, lightning arcs hissing sharply.

Even the airflow around him made Ninja World Kakashi's clothes, dozens of meters away, flutter.

"Truly excessive… just a kid, and this strong…"

Ninja World Kakashi sighed, quickly lifting his forehead protector to reveal his three-tomoe Sharingan.

"Hmph! Sharingan? Then try and see if you can really track my movements…"

As he spoke, Haruki turned into a lightning flash.

Left! Right! Left! Right!

The lightning flashed, appearing and disappearing, flickering back and forth.

Ninja World Kakashi's eyes tracked him.

The next moment, Haruki appeared before him, his short sword slashing.

Ninja World Kakashi's pupils shrank as he raised his kunai to block.

When the kunai met the short sword, something shocked Kakashi!

The kunai snapped like a twig!

The short sword headed straight for Ninja World Kakashi's throat.

"Is this all you've got?"

Haruki tilted his head and asked.

"You… win…"

Ninja World Kakashi paused, speaking with slight bitterness.

"Huh? Don't joke! Giving up just like that? Carrying the Hatake name, Dad from the other world, is this it?"

Haruki said, clearly displeased.

"My other self… you were careless. Haruki's short sword is a special weapon, extremely sharp and suited for lightning chakra and True Qi. When both energies are channeled into it, its sharpness and armor-piercing effects increase exponentially."

"An ordinary kunai can't possibly withstand it. Want to try again?"

Imperial Kakashi flashed to Ninja World Kakashi's side.

"Forget it. Even if we tried again, the result wouldn't change. Your martial arts are too strong. Though I've started learning, I'm far behind."

"Haruki's just a kid, but in the ninja world, his strength is Kage-level. I can't beat him."

Ninja World Kakashi conceded graciously.

"Giving up so easily… boring. Dad from the other world is too weak!"

Haruki sheathed his short sword and commented.

"You think everyone's as lucky as you?"

Imperial Kakashi smacked Haruki's head:

"លBefore His Majesty the Emperor unified the ninja world, we didn't have martial arts training. Back then, it was impossible for an 11-year-old Kage-level expert to exist. Your strength is thanks to His Majesty!"

"Be grateful for martial arts! Don't call people new to it weak! Got it?"

"Tch!" Haruki pouted.

*WHOOSH!*

A tearing sound rang out.

Imperial Sakumo appeared beside them, looking at Ninja World Kakashi and saying:

"Where's your White Fang Sword Technique? Forgotten?"

"Haven't used it in so long, I forgot…"

Ninja World Kakashi glanced at Imperial Sakumo.

"Interested in learning it again? And Thunder Breathing Style too?" Imperial Sakumo asked.

"Hmm? You'd teach an outsider like me?" Ninja World Kakashi was surprised.

"Outsider? My son from another world, is he an outsider? If you don't mind, you can call me foster father, little Kakashi." Imperial Sakumo said.

"…"

Ninja World Kakashi didn't speak, just stared at Imperial Sakumo.

After a moment, he said, "Thank you, Foster Father."

His expression was slightly awkward, thankfully hidden by his mask.

"Let's go." Imperial Sakumo's lips curved as he patted Ninja World Kakashi's shoulder.

"Huh? You're calling Grandpa foster father? Then what do I call you? Little Dad?" Haruki said.

"Whatever you want."

Ninja World Kakashi rolled his eyes.

Imperial Kakashi slipped a paper package into Ninja World Kakashi's hand.

"A gift from your big brother. Yamato told me you like this."

"Huh?"

Ninja World Kakashi froze, opening a corner of the package to see an image of a man and woman embracing.

The book's title, [Intimate Series: Teacher] Volume his face flushed, and he quickly closed it.

"What all did Yamato tell you guys!"

"Everything that needed saying… Brother! I get you, but… your body is a warrior's greatest asset. Take it easy." Imperial Kakashi said seriously.

Ninja World Kakashi stared at the sky, speechless.

His reputation was ruined! His weakness! It had nothing to do with reading that! Damn it!

◆━⊰✧⊱━◆

'Beep beep beep… Facial recognition complete, retina scan complete, blood verification complete, genetic verification complete… Welcome, Professor Orochimaru.'

At the high-tech underground metal gate glowing with cold white light, an electronic voice sounded.

The gate slowly opened.

"Finally, I get to see my other self's technological achievements… just thinking about it is thrilling…" Ninja World Orochimaru said, licking his lips.

"How amazing are Orochimaru-sama's research results in this world?" Ninja World Kabuto pushed up his glasses, his arms trembling with excitement.

"Hehehe… then look closely with your own eyes. Trust me, you won't be disappointed."

As he spoke, Imperial Orochimaru stepped through the gate.

Ninja World Orochimaru and Kabuto followed closely.

One by one, ten one-meter-thick metal doors opened.

Only then was everything inside revealed.

In upright nutrient capsules, non-human creatures wearing breathing masks were submerged in green nutrient fluid.

These non-human creatures had various bizarre forms.

Beside the capsules, white-robed scientists were constantly taking notes.

Seeing Imperial Orochimaru and Ninja World Orochimaru, they weren't surprised, merely nodding lightly.

"These… are cursed seal test subjects?"

Ninja World Orochimaru asked instinctively.

"Cursed seal test subjects? What's that?"

Imperial Orochimaru asked curiously.

Ninja World Orochimaru explained.

After listening, Imperial Orochimaru smiled:

"I see, mutant individuals absorbing natural energy? A remarkable experiment, as expected of my other self. If you put it that way, you could understand it like this, but these biologically modified humans are all carefully engineered with adjusted genes, so there are no unbearable side effects. Look over there."

Imperial Orochimaru pointed at a wolf-headed, human-bodied monster and continued:

"This is a werewolf. It has speed, strength, and recovery far beyond ordinary humans, and at night, all its attributes double."

"It can see in the dark and has combat power equivalent to a Jonin."

"Incredible… my cursed seal test subjects, only the best ones reach Jonin-level strength." Ninja World Orochimaru said, licking his lips.

"That's a Blood Clan. Similar to werewolves, not as strong but faster, and capable of blood-sucking to instantly heal all wounds, with slightly stronger overall combat power than werewolves."

"Truly beautiful…"