Konoha Year 53,
Land of Fire, Konohagakure.
The six-year-old Kazuki carefully studied the scroll of Chakra Extraction before him, absorbing every word with unwavering focus.
As a transmigrator, he was well aware of the dangers lurking in the world of Naruto.
Without sufficient strength, one would be nothing more than cannon fodder—no different from those nameless shinobi who perished during the Third Great Ninja War.
Though still young,
Every spare moment had to be devoted to training.
Strength was the only means of survival.
And the first step toward becoming a ninja—chakra extraction!
Time trickled by, minute by minute.
Kazuki, lost in thought, carefully comprehended the method of chakra refinement, sensing the theoretical flow of energy within his body.
At that moment—
"Squeak."
The door to his room swung open.
A small girl peeked inside, her hair tied into two buns—a hairstyle reminiscent of Konoha's future weapons specialist.
She pouted, her voice soft and sweet:
"Brother, dinner's ready! Come eat!"
Kazuki paused his training and smiled.
"Got it, Tenten."
Standing before him was the future teammate of Neji Hyuga and Rock Lee, a girl who, despite her immense potential, would never achieve the same renown as her comrades.
She was cute—yes, but never a standout in combat.
Yet in this life, she was no longer just a supporting character in someone else's story.
She was his little sister.
That's right.
He had transmigrated into the Naruto world, but unlike many others, he wasn't an orphan.
Instead, he was born into an ordinary civilian family—one with loving parents, a stable life, and a cheerful little sister named Tenten.
Their family ran a ninja tool shop in one of Konoha's bustling commercial streets.
As merchants, their parents frequently traveled outside the village to procure quality weapons and materials.
This meant that for the past few days, only Kazuki and Tenten had been home.
Naturally, since she loved cooking, the responsibility of making meals had fallen to Tenten.
"Brother, taste it quickly! Is it good?!" Tenten's bright eyes sparkled with anticipation.
Kazuki, who had survived on instant noodles for days, looked at the steaming bowls on the table.
His eyes lit up in surprise.
"Ramen? Sis, you're amazing!"
The aroma of the miso broth, the delicate slices of chashu, the perfectly cooked noodles—it was nothing compared to Ichiraku Ramen, but after days of bland food, it smelled heavenly.
"I'm digging in!"
The room filled with the sound of slurping noodles as the two siblings ate heartily.
After dinner, Kazuki returned to his room,
unrolled the Chakra Extraction Scroll,
and resumed his training.
Under normal circumstances,
if one could train in basic ninjutsu while refining chakra,
their progress would be far more efficient.
However, there was a problem.
Kazuki's parents were civilians.
Their home had no ninjutsu scrolls, no secret techniques—
just weapons and tools.
In the world of shinobi, knowledge was power.
A single ninjutsu scroll could be a family's greatest treasure,
and for civilians, acquiring one was nearly impossible.
Before the Second Hokage, Tobirama Senju, established the Ninja Academy,
almost every shinobi hailed from clans—
commoners rarely had the chance to become ninja.
Fortunately, those times had changed.
And while Kazuki's family lacked ninjutsu,
they were in the ninja tool trade.
Perhaps that, too, would become his path to strength.
Although Kazuki's father was not a ninja, he ran a weapons shop in the Land of Fire and frequently interacted with shinobi, particularly those from Konoha's blacksmithing and supply networks. Leveraging these connections, he managed to acquire several scrolls detailing the fundamentals of chakra refinement, similar to those used by the students of the Ninja Academy.
After thoroughly studying the contents of the scroll, Kazuki sat cross-legged in the backyard, closed his eyes, and prepared to extract chakra.
In the world of Naruto, chakra is the vital energy that fuels all ninjutsu, genjutsu, and taijutsu. The process of refining chakra involves balancing two key forces: the physical energy drawn from the 130 trillion cells of the human body and the spiritual energy cultivated through training and experience.
Following the methods outlined in the scroll—reminiscent of the foundational teachings given to Academy students by instructors like Iruka Umino—Kazuki began to extract both physical and spiritual energy. He carefully attempted to merge them, just as the scroll described…
And then—finally!
A faint yet undeniable surge of chakra coursed through his body for the first time!
The entire process took less than three minutes.
Excellent.
Just as Kazuki felt a surge of excitement at his success, an unexpected voice echoed in his mind:
[Ding! Chakra detected—congratulations to the host for successfully activating the "God-Level Forging System"!]
[System panel opening…]
A translucent, holographic display materialized before his eyes.
[Host: Kazuki]
[Age: 6 years old]
[Forging Level: Beginner]
[Unlocked Weapons: None]
[Self-Created Weapons: None]
"God-Level Forging System?"
Kazuki's initial shock quickly gave way to contemplation.
"A system that aids in weapon creation?"
No—if the system was triggered by sensing chakra, then it likely dealt with far more than ordinary kunai and shuriken. Perhaps it could forge legendary weapons, akin to the Bashōsen (Banana Fan) wielded by the Gold and Silver Brothers, or the Six Paths' treasured tools like the Shakujō (Six Tailed Staff)!
His eyes gleamed with excitement.
As he pondered the system's potential, another notification appeared:
[Ding! Mission Released: Crude Iron (100g)
System Reward: Beginner Forging Blueprint – Clone Kunai]
"So simple?"
"Just 100 grams of crude iron to complete the mission?"
After a brief moment of doubt, Kazuki quickly reasoned that since the system had just activated, the initial task was bound to be straightforward.
Crude iron—one of the most common forging materials. Standard shinobi tools, such as kunai and shuriken, began as crude iron before being refined into battle-ready weapons.
Fortunately, Kazuki's family owned a weapons shop. In the storage yard, piles of unused crude iron blocks sat idle.
He grabbed a fist-sized chunk, estimating it would be more than sufficient to meet the requirement.
[Ding! Mission Completed!
System Reward: Beginner Forging Blueprint – Clone Kunai issued!]
A surge of information flooded into Kazuki's mind.
Instantly, he grasped the forging method for the Clone Kunai.
[Clone Kunai:
Forging Difficulty: *
Special Ability: Instantly activates the Clone Jutsu upon impact, creating a temporary material duplicate of the user.]
"What an incredible forging technique!"
Understanding the potential of this craft, Kazuki marveled at the possibilities.
His eagerness surged—he had to start forging this Clone Kunai immediately!
"Perfect! There's a small forge in the backyard. I can begin testing it right away!"