The dojo was quiet again.
Not silent.
Never silent.
Just… controlled.
Kaito stood alone in the training room from the night before. No students. No movement. Just space.
He exhaled slowly.
"…That wasn't nothing."
The presence from earlier hadn't faded completely.
It lingered.
Not around him...
Inside him.
Kaito clenched his hand slightly.
The movement felt normal.
Controlled.
Stable.
But...
There was something under it.
A faint disturbance.
Like something deeper had shifted.
"…That's new."
He stepped forward.
Took position.
No stance.
Just presence.
Then...
He moved.
A simple strike.
Clean.
Controlled.
Perfect.
But the moment his fist stopped...
A pulse ran through his arm.
Subtle.
Quick.
But there.
Kaito's eyes narrowed slightly.
"…What was that."
He reset.
Did it again.
Step.
Turn.
Strike...
The pulse returned.
Stronger this time.
Not pain.
Not weakness.
Just...
Reaction.
His body adjusted instantly.
Stabilizing.
Correcting.
But the sensation lingered.
"…It's not external."
Kaito exhaled slowly.
"…It's me."
Silence filled the room.
He lowered his hand slightly.
Watching it.
Not visually...
Internally.
"…The blood."
The words came quietly.
Not a guess.
A recognition.
Something inside him had responded.
To what...
He already knew.
"…That presence."
Kaito stepped back.
Rolled his shoulders.
The movement felt slightly off.
Not wrong.
Just...
Less stable than before.
"…That shouldn't happen."
His body was complete.
Infinite Breakthrough.
No internal limits.
No instability.
And yet...
Something had shifted.
"…So this isn't a flaw."
He straightened slightly.
"…It's a reaction."
Kaito closed his eyes for a moment.
Focusing inward.
Not on muscle.
Not on movement.
On the flow.
The alignment.
The structure he had built.
Everything was still there.
Intact.
Precise.
But beneath it...
Something else moved.
Faint.
Unstable.
Awake.
Kaito's eyes opened.
"…So this is what she meant."
"People like you."
"Blood that doesn't belong."
The words came back clearly now.
Not distant.
Not vague.
Real.
Kaito clenched his fist again.
The pulse returned immediately.
Stronger.
Faster.
His breathing didn't change.
But his focus sharpened.
"…It's reacting to them."
Not fear.
Not stress.
Recognition.
His body wasn't breaking.
It was...
Responding.
To something it understood.
Even if he didn't.
Kaito stepped forward again.
Moved.
Faster this time.
Testing.
Pushing.
Strike.
Turn.
Shift...
The pulse spread.
Not just in his arm.
Through his body.
Short.
Controlled.
But wider.
Kaito stopped.
Immediately.
"…That's enough."
He exhaled slowly.
Let the movement settle.
The reaction faded.
Not gone.
Just...
Quiet again.
"…So it's not constant."
Only triggered.
Only active when...
He felt them.
Kaito's eyes narrowed slightly.
"…That's useful."
Not dangerous.
Not yet.
Just...
Unfamiliar.
He stepped back.
Resetting fully.
Posture relaxed.
Breathing steady.
"…But it's not stable."
That part mattered.
A lot.
His strength depended on control.
On precision.
On consistency.
And this...
Was none of those things.
"…So I need to understand it."
Not suppress it.
Not ignore it.
Understand it.
Kaito looked down at his hands again.
Then...
Clenched them lightly.
No reaction this time.
The pulse stayed quiet.
Dormant.
"…Good."
He turned slightly.
Moving toward the door.
The room behind him returned to stillness.
But something had changed.
Not in the space.
In him.
He stepped into the hallway.
The dojo still calm.
Still grounded.
Still controlled.
But Kaito's awareness had shifted.
Not just outward.
Inward.
"…So this is part of it."
His strength.
His origin.
His target.
All connected.
Kaito's eyes sharpened slightly.
"…Then I'll figure it out."
No hesitation.
No doubt.
Just...
Decision.
Because whatever that reaction was...
It wasn't a weakness.
It was a piece of something he hadn't fully understood yet.
And in this world...
That wasn't something you ignored.
It was something you mastered.