The night after the battle was silent.
Jin Muyeon lay alone in the disciple quarters, his body still aching from Instructor Han's strikes.
Every breath hurt.
But pain was familiar.
He had lived through worse.
He closed his eyes.
"System."
A familiar blue screen appeared.
[Host Status Stable]
[Damage Recovery in Progress]
Then—
A new notification flashed.
[System Function Unlock: SHOP]
Muyeon's eyes narrowed slightly.
"…Shop?"
The screen expanded.
Rows of unfamiliar options appeared, glowing faintly.
[SKILL SHOP]
Basic Sword Technique (Demonic Grade) — 50 Points
Shadow Step (Movement Skill) — 80 Points
Blood Pulse (Temporary Strength Boost) — 120 Points
Aura Concealment — 60 Points
Muyeon sat up slowly.
So this is how power is bought.
Not earned through years of training…
But exchanged.
His fingers hovered.
He checked his status.
[Villain Points: 35]
Not enough.
He clicked his tongue.
"Tch."
Still too weak.
But then—
A second tab appeared.
[UPGRADE SYSTEM]
Available Enhancements:
Strength +1 (20 Points)
Agility +1 (20 Points)
Endurance +1 (15 Points)
Combat Sense (Passive) +30 Points
Muyeon's eyes sharpened.
This was better.
Much better.
Even small improvements meant survival.
He didn't hesitate.
[Purchase Confirmed]
Agility +1
Endurance +1
A sudden warmth spread through his body.
His muscles tightened.
His breathing steadied.
Pain dulled slightly.
Muyeon clenched his fist.
"…This is real."
He could feel it.
He was changing.
Then another notification appeared.
[Side System Function Unlocked: DAILY MISSIONS]
Defeat stronger opponents
Survive lethal encounters
Gain Villain Points through fear, domination, or killing intent
Muyeon exhaled slowly.
"So I grow stronger by fighting…"
A faint smile appeared.
"That's simple enough."
Suddenly—
A new sound echoed outside.
Footsteps.
Multiple.
Fast.
Muyeon stood instantly.
His eyes sharpened.
[System Alert]
[Host detected approaching hostility]
The door slid open.
Three disciples stepped inside.
Their faces were tense, but their eyes carried confidence.
Not fear like before.
The leader spoke.
"So it's true."
"You survived Instructor Han."
Muyeon tilted his head slightly.
"And?"
The disciple stepped forward.
"We don't accept that."
A faint pressure filled the room.
They were stronger than the ones from the courtyard.
Core-level disciples.
Muyeon's eyes flickered.
Perfect.
He glanced at the system.
Villain Points: 35
Not enough for a skill.
But enough for something else.
He entered the shop quickly.
Finger moved.
[Purchase: Shadow Step (Basic)] — 80 Points
A warning flashed.
[Insufficient Points]
Muyeon clicked his tongue.
Then shifted strategy.
He upgraded instead.
Agility +2
Combat Sense unlocked
His body warmed again.
Something inside his mind clicked.
The world felt… slower.
Sharper.
Clearer.
Muyeon looked up.
The three disciples had already started moving.
Too slow.
First strike came.
A fist aimed at his face.
Muyeon stepped sideways.
Not dodged.
Not reacted.
Just… already there.
The fist missed completely.
The disciple's eyes widened.
"What—?!"
Muyeon answered calmly.
"I see."
He moved.
A short step forward.
Elbow strike.
CRACK.
The disciple flew backward, slamming into the wall.
Silence.
The other two froze.
"…He's fast now," one muttered.
Muyeon exhaled slowly.
So this is what upgrading feels like.
Not power.
Control.
He looked at the system again.
A faint smile formed.
"I understand now."
The remaining disciples attacked together.
But Muyeon was already moving.
Not reacting anymore.
Predicting.
Left.
Step.
Right.
Strike.
BAM.
BAM.
Two bodies hit the floor.
The room went quiet.
Muyeon stood among them, breathing steady.
No excitement.
No panic.
Just clarity.
[Villain Points +15]
[Combat Experience Gained]
He looked down at his hand.
"…I'm getting stronger."
Then he glanced at the system again.
"This shop…"
A faint smile returned.
"…is going to change everything."
Outside the room, hidden in the shadows—
Someone watched.
And smiled.