Looking at the restraint and expectation written all over Boruto's face, Tōno Katō thought to himself:
So Young Master Boruto can't accept the reality that the Seventh Hokage was defeated by an outsider… and wants to reclaim his father's honor in his own way?
Heh. Perfect.
A faint, almost imperceptible smile flickered across Katō's lips.
As a researcher, he had always longed for his scientific ninja tools to be widely recognized and promoted.
But ever since their appearance, these tools had challenged tradition.
The higher-ups believed they were harmful to the growth of the new generation.
As a result, they had remained lukewarm—never truly adopted.
Earlier today, when he heard that Naruto and Sasuke had been defeated by a man named Uchiha Akira, Katō had rushed to the hospital with his newest prototype, hoping to seize the opportunity and rise in one leap.
Yet after all his earnest persuasion, Naruto and Sasuke had dismissed him without hesitation, saying that Uchiha Akira was not someone such things could deal with.
Even Shikamaru, who had always paid attention to his research, shook his head and said he had come at the wrong time.
Katō had thought the opportunity was lost.
But Boruto's appearance gave him new hope.
He adjusted his glasses and quickly organized his words in his mind.
Then he said,
"That's right. As long as you're equipped with our latest scientific ninja tools, you can blow Uchiha Akira to pieces in a single exchange!"
Boruto frowned.
"In a single exchange? Isn't that way too exaggerated?"
"Even though I've never seen my dad at full power, he's still the Hokage—the strongest ninja in the village, right?"
"And Sarada's dad, Uncle Sasuke, is supposed to be the only one who can match him!"
"Even Dad and Uncle Sasuke together couldn't beat Uchiha Akira. And you're saying this thing can take him down instantly?"
Even with Boruto's limited understanding, he felt Katō was bragging too much.
But Katō merely smiled calmly and pushed up his glasses.
"Young Master Boruto, that's because you haven't seen much of the world."
"How about this—let's go somewhere open. I'll let you experience firsthand what these tools can do."
"…Alright."
After thinking for a moment, Boruto agreed.
Fifteen minutes later, they arrived at the training range behind Konoha's mountains.
Katō took out the wrist-mounted device he had shown Naruto earlier.
Instead of demonstrating immediately, he proudly began explaining.
"Young Master Boruto, this is the latest generation of scientific ninja tools."
"It uses chakra capacitor technology."
"By storing chakra inside, then loading ninjutsu sealed in miniature scrolls, the user can release the techniques at will."
"That means no chakra consumption, no complicated hand seals."
"As long as you know how to operate it, even civilians who can't use ninjutsu can cast powerful techniques!"
Boruto picked at his ear, unimpressed.
"I don't care about the theory. I just wanna know if it's really that strong."
"Hurry up and show me! I snuck out and risked getting yelled at by my mom for this!"
What an impatient kid…
Fine. I'll show you something impressive.
Katō put on the wrist device and rummaged through his pocket.
Among several thumb-sized miniature scrolls, he found one marked with a special symbol.
"This one."
He inserted it into the slot.
If the wrist device was a "gun," then these scrolls were its "bullets."
Click!
After loading, Katō raised his arm.
Click!
A spring-reset sound rang out as he flipped a switch.
Whoosh!
The miniature scroll popped out.
Katō caught it, braced his wrist, and formed a finger-gun gesture.
"Bang."
Whoosh!
A massive, blazing sphere appeared in front of his fingers.
Under Boruto's stunned gaze, it roared forward—
Boom!
It obliterated the target ten meters away, then continued straight into the forest behind it.
Trees were flattened in its path.
More than ten were destroyed in an instant.
Thirty meters away, a deep crater remained.
Katō thought smugly:
It can only fire in a straight line for now—that's a technical limitation.
But… Young Master Boruto probably won't care about such minor flaws.
Seeing Boruto staring blankly at the smoking forest, Katō felt deeply satisfied.
Yes. This is how it should be.
"A-Amazing!" Boruto clenched his fists in excitement.
"That was incredible! Can you do it again?!"
Katō pushed up his glasses proudly.
"That technique is called the Rasengan."
"It was sealed into the scroll by your instructor, Konohamaru Sarutobi."
"Unfortunately, I only have one left for now. I'll restock later."
"Konohamaru-sensei? He's helping you test this stuff too?"
"Of course. Not just him—Sixth Hokage Kakashi Hatake is involved as well."
Katō took out another specially marked scroll.
"This one contains his signature technique—an ultra S-rank treasure."
He loaded it, then took out more scrolls.
"These range from B-rank to A-rank."
"I can load them all at once."
As he worked, he continued,
"Once you master this chakra capacitor device, you'll be able to fire powerful jutsu like a storm."
"No matter how strong Uchiha Akira is, he's still flesh and blood."
"And no matter how fast his hand seals are, he can't compete with a machine that doesn't need seals and can fire continuously."
"So tell me—how could he withstand a barrage of A-rank and even S-rank techniques?"
Katō removed the loaded device and handed it toward Boruto.
"In other words, Young Master Boruto…"
"With this latest scientific tool, you can blow Uchiha Akira away in an instant!"
Gulp.
Boruto swallowed hard and reached out.
Just then—
Katō smiled meaningfully and pulled his hand back.
"Huh? What are you doing? Give it to me!" Boruto asked anxiously.
Katō clasped his hands behind his back.
"I can give it to you."
"But first, you have to promise me one thing."
"…What?"
Boruto asked urgently.
Tōno Katō said slowly, deliberately:
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