The seasons changed.
Spring quietly gave way to summer.
The cherry blossoms that once covered the Kensei estate had long since fallen, replaced by lush green leaves dancing beneath the warm breeze.
Nearly six months had passed since Ryuu found the old notebook.
His routine never changed.
Before sunrise...
He woke.
After helping his mother prepare breakfast, he quietly made his way to the dojo.
Swing.
Step.
Breathe.
Again.
Again.
Again.
The old dojo, once silent for decades, was once again filled with the rhythmic sound of a wooden sword cutting through the air.
Swish!
Swish!
Swish!
Every strike carried purpose.
Every movement was deliberate.
Ryuu no longer counted his swings.
The numbers had become meaningless.
Instead...
He focused on perfecting a single movement.
One swing.
One correction.
One improvement.
That was enough.
...
One morning, while practicing a downward slash, he suddenly stopped.
"..."
Something felt wrong.
His grip.
It wasn't uncomfortable.
It simply...
Didn't feel natural anymore.
He lowered the wooden sword and examined it.
The handle had become too small for his growing hands.
"I've outgrown it."
The realization made him smile.
Not because he needed a new sword...
But because it was proof that time had passed.
He wasn't the helpless newborn who had arrived in this world.
Step by step...
He was moving forward.
...
That afternoon, Ryuu found his mother repairing a wooden fence outside their home.
Without saying a word, he picked up another hammer and began helping.
She looked at him in surprise.
"You don't have to help."
Ryuu smiled.
"But I want to."
For a while...
Neither of them spoke.
The rhythmic tapping of their hammers echoed through the quiet estate.
After several minutes, his mother finally broke the silence.
"Ryuu."
"Hm?"
"Why do you train so hard?"
The question caught him off guard.
He thought for a long moment.
Why?
Was it because of his previous life?
Because he admired swords?
Because he wanted to become strong?
In the end...
He simply answered honestly.
"I don't want to regret anything."
His mother stopped hammering.
"...Regret?"
Ryuu nodded.
"In my... dreams..."
"I often see someone who always said, 'I'll do it tomorrow.'"
"He never chased what he truly wanted."
"I don't want to become like him."
He couldn't tell her the truth.
That person...
Had been himself.
His mother smiled gently.
"I think..."
"Whoever that person was..."
"They'd be proud of you now."
Ryuu looked away, hiding the faint moisture gathering in his eyes.
Perhaps...
She was right.
...
That evening, after dinner, his mother entered the dojo carrying a long cloth bundle.
"I have something for you."
Ryuu's curiosity immediately rose.
She carefully unwrapped the bundle.
Inside lay another wooden practice sword.
Unlike the previous one...
This one was beautifully crafted.
Its balance was perfect.
Its handle fit comfortably within his small hands.
"Did you make this?" Ryuu asked.
His mother gave a soft laugh.
"You've grown."
"It's time for a proper practice sword."
Ryuu accepted it with both hands.
The moment his fingers wrapped around the handle...
An indescribable feeling spread through his body.
Not power.
Not chakra.
Simply...
Comfort.
As though the sword naturally belonged in his hands.
His mother stepped back.
"Show me."
Ryuu nodded.
He took a deep breath.
Closed his eyes.
Raised the wooden sword.
Then—
Swish!
A clean downward slash.
Smooth.
Balanced.
Controlled.
His mother watched in silence.
The movement wasn't extraordinary.
Any experienced shinobi could perform it better.
Yet...
For a child barely four years old...
It was remarkable.
Not because of speed.
Not because of strength.
But because every movement lacked hesitation.
There was no wasted motion.
Only intention.
She smiled.
"You've learned well."
Ryuu lowered the sword.
"I still have a long way to go."
His mother nodded approvingly.
"Never lose that mindset."
"The day a swordsman believes he has reached the end..."
"...is the day he stops growing."
Those words engraved themselves into Ryuu's heart.
...
Late that night...
After his mother had gone to sleep, Ryuu returned to the dojo one final time.
Moonlight spilled through the open windows.
He stood before the ancestral tablets.
Quietly.
Respectfully.
Then...
He bowed.
"Thank you."
"I don't know whose notebook it is..."
"But I promise..."
"I'll continue walking this path."
Silence answered him.
Or so he thought.
Far beneath the dojo...
Hidden behind ancient seals that had remained untouched for decades...
A faint pulse echoed through the darkness.
Thump.
Like the beating of a distant heart.
The pulse was weak.
Almost imperceptible.
Yet it was real.
Deep within the sealed chamber...
The dust covering an ancient black sheath shifted ever so slightly.
A single grain of dust drifted to the stone floor.
The forgotten legacy of the Kensei Clan had sensed its heir.
Not because he was powerful.
Not because he possessed talent.
But because...
For the first time in generations...
Someone had walked the path of the sword without seeking anything in return.
The time was approaching.
Very soon...
The Sword Heart would answer its rightful bearer.
End of Chapter 6