Pain no longer slowed him down.
It guided him.
Kang Joon-Ho woke up before sunrise.
Earlier than usual.
Earlier than necessary.
But necessary… for him.
His body still ached from the previous night.
Bruises hadn't healed.
Muscles still stiff.
But he moved anyway.
Step by step.
Ignoring discomfort.
Accepting it.
Using it.
"Status."
"Physical condition: Recovering."
"Fatigue level: Moderate."
Joon-Ho stretched slowly.
Carefully.
"…We train today."
"Recommendation: Proceed with caution."
A faint pause.
Then—
"Noted."
He stepped outside.
Cold air hit his face.
Sharp.
Awakening.
He started running.
Not fast.
Not aggressively.
Just steady.
Consistent.
Each step grounded.
Each breath controlled.
This wasn't about speed.
This was about discipline.
At the office, nothing had changed.
But Joon-Ho had.
He worked faster.
Cleaner.
More precise.
No wasted movement.
No wasted thought.
Even his typing felt… calculated.
Lee Min-Kyu noticed.
Of course he did.
"You're doing it again," he said during lunch.
Joon-Ho didn't look up.
"Doing what?"
"That thing," Min-Kyu replied. "Like everything around you is just… background."
Joon-Ho took a bite of his food.
Chewed slowly.
Then—
"It is."
Min-Kyu frowned. "We're not background characters, Joon-Ho."
Silence.
Then—
"That depends."
Min-Kyu leaned forward.
"On what?"
Joon-Ho looked at him.
Calm.
Unshaken.
"On whether you matter."
The words weren't harsh.
But they hit harder than anger ever could.
Min-Kyu leaned back.
Speechless.
For the first time—
He didn't argue.
Evening came.
And Joon-Ho returned.
Not home.
But to the same place.
The gym.
The air felt familiar now.
The sounds.
The rhythm.
The impact of fists against flesh.
He stepped inside.
No hesitation.
The trainer noticed him immediately.
"You came back."
"I said I would."
The man smirked slightly.
"Most people don't."
Joon-Ho didn't respond.
He stepped forward.
"Same drill."
The trainer nodded.
This time—
No introductions.
No questions.
Just a silent understanding.
Joon-Ho stepped into the ring again.
A different opponent.
Taller.
More aggressive.
"Ready?" the man asked.
Joon-Ho nodded once.
The fight started.
Faster this time.
Sharper.
The first punch came—
And Joon-Ho moved.
Not perfectly.
But better.
Cleaner.
He blocked.
Adjusted.
Countered.
Still rough.
Still untrained.
But improving.
Rapidly.
"Combat Adaptation active."
"Response speed increased."
A punch grazed his shoulder.
Another missed completely.
Joon-Ho stepped in—
And struck.
More controlled.
More accurate.
The opponent stepped back.
Surprised.
"…You learned fast."
Joon-Ho didn't reply.
He kept moving.
Focused.
Watching.
Every movement.
Every pattern.
Every opening.
The fight continued.
Longer this time.
More balanced.
Less one-sided.
Until finally—
"Stop."
The trainer's voice cut through.
Joon-Ho stepped back.
Breathing heavy.
But steady.
The opponent nodded slightly.
"You're not normal."
Joon-Ho didn't respond.
He stepped out.
The trainer crossed his arms.
"…You're improving too fast."
Joon-Ho wiped the sweat from his face.
"Is that a problem?"
A small smile formed.
"For your enemies… yeah."
Joon-Ho didn't smile back.
Because this wasn't about impressing anyone.
This was about preparation.
"Tomorrow," the trainer said, "we start basics properly."
Joon-Ho nodded.
"I'll be here."
As he walked out—
The system activated.
"Combat efficiency increased by 27%."
Joon-Ho's steps remained steady.
"Not enough."
"Progress within optimal range."
A pause.
Then—
"Phase One nearing completion."
Joon-Ho's eyes narrowed slightly.
"How long?"
"Estimated: 5 days."
Perfect.
Everything was aligning.
Training.
Preparation.
Revenge.
All moving toward the same point.
The same moment.
The same day.
As he walked through the quiet streets—
His reflection appeared in a dark window.
Different.
Not just physically.
But completely.
The kindness was gone.
The hesitation… gone.
All that remained—
Was purpose.
And control.
Joon-Ho stopped for a moment.
Looking at himself.
Then spoke quietly—
"Soon."
A single word.
But heavy.
Final.
Because the man who once endured everything silently…
Was no longer waiting to be hurt.
He was preparing to hurt back.
And this time—
He wouldn't stop halfway.