Month: Mid April
Year: Taishō 13
Age: Akira — 7
Location: Azabu District (residential paths & outer clearing)
Combat Strength: ★★½☆☆ (endurance refinement phase)
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Akira noticed his breathing before Mitsuri noticed his sword.
That morning, the air felt warmer—spring settling in properly now. Birds were louder. The sky brighter even before dawn.
He inhaled.
Something felt… heavy.
Not pain.
Not fatigue.
Resistance.
He stopped.
> "Cumulative fatigue detected. Endurance approaching current developmental limit."
Akira frowned slightly. "Already?"
> "Child physiology prioritizes growth over sustained strain. Continued accumulation risks delayed recovery."
"So I shorten training," he said.
> "Recommendation: reduce duration by 18%. Maintain quality over volume."
Akira nodded.
He adjusted without complaint.
No extra swings.
No extra steps.
Just breathing—slow, deep, controlled.
He left the clearing earlier than usual, the sun only just beginning to rise.
---
Mitsuri had been awake.
Not because she planned to be.
She had simply… felt restless.
Wrapped in her blanket, she lay still, listening to the quiet. Then—faintly—she heard footsteps outside. Familiar ones.
She peeked through the window.
Akira.
He was already coming back.
"…That's early," she whispered.
Later that day, while they walked together through the district, Mitsuri finally spoke.
"Akira," she said, matching his pace, "can I ask something strange?"
He smiled faintly. "You don't ask normal questions."
She huffed. "Hey!"
Then, more softly: "…When you breathe in the morning… does it feel different from normal breathing?"
Akira glanced at her—surprised, just a little.
"…Yes," he answered. "Why?"
She pressed her fingers together. "Because when I tried breathing slowly like you—just to see—I felt like my chest was too full. Like my body didn't know what to do with it."
Akira slowed.
> "Observation: Mitsuri possesses high lung capacity potential. Natural affinity suspected."
He kept his voice neutral. "Everyone breathes differently."
Mitsuri nodded. "But yours looks… calm. Like it knows where to go."
She laughed awkwardly. "Mine just feels curious. Like it's asking questions."
Akira thought about that.
"…That's not bad," he said.
Her eyes brightened. "Really?"
"Curiosity is how you listen to your body," he replied. "Not how you force it."
She beamed—but didn't ask more.
And Akira didn't offer.
---
What Akira didn't know—
Was that Mitsuri had started waking early too.
Not as early.
Not every day.
Just sometimes.
She didn't follow him.
Didn't spy.
She simply stood in her own room, feet apart, breathing slowly the way she remembered seeing him breathe.
In.
Out.
Her posture wasn't sword-based. It wasn't anything yet.
But her body swayed when she exhaled.
Like a ribbon in the wind.
"…Why does it feel nicer when I move?" she murmured.
She didn't write it down.
She just remembered.
---
Meanwhile, Akira adjusted again.
His training shortened. His recovery lengthened.
> "Endurance refinement ongoing. Peak output unchanged; sustainable output increased."
"So I don't get stronger faster," Akira said one evening, stretching carefully, "but I last longer safely."
> "Correct. A flame that burns evenly outlives a spark that flares."
Akira smiled faintly at that.
He slept deeper that night.
---
A few days later, Mitsuri surprised him again.
They were walking home from the market when she suddenly said:
"Akira… when you stop training early… are you disappointed?"
He shook his head. "No."
"…Why not?"
"Because stopping is also part of training."
She absorbed that in silence.
That night, she tried breathing again.
And this time—
She smiled.
---
Spring deepened.
Two children walked side by side—one refining a flame he would one day wield, the other unknowingly tracing the outline of a ribbon that would someday dance.
Neither rushed.
Neither knew where it would lead.
And that was exactly how it should be.
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End of Chapter 13
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