Inside his home, Park Jison sat on the couch with his legs crossed and arms folded, posture deceptively composed.
He had already changed out of his school uniform. Now he wore a loose white shirt and half pants—casual, relaxed.
But his mind was anything but.
On the table in front of him—
His phone.
Placed carefully.
Screen facing upward.
And his gaze…
Fixed on it.
Unwavering.
As if sheer focus alone could force time to move faster.
Click.
The front door opened.
Min-ji stepped inside, casually slipping off her shoes before walking into the hall.
She immediately noticed him.
Sitting stiffly.
Staring at his phone like a man waiting for a life-or-death signal.
A mischievous smile crept onto her face.
"Brother… what are you staring at on your phone like that?"
Jison snapped out of his trance and looked at her, his expression shifting into something awkwardly neutral.
"Oh… nothing," he said, clearing his throat. "Just waiting for a call."
Min-ji's eyes narrowed playfully.
"Oh?" she said, voice laced with teasing curiosity. "Is she beautiful?"
"Yeah, she is beau—"
He froze mid-sentence.
Silence.
Then—
His face flushed red instantly.
"You witch—!" he snapped, half-angry, half-embarrassed. "How the hell did you know a girl was going to call me?!"
Min-ji covered her mouth, laughing softly.
"I just guessed," she said innocently. "But thanks for confirming it."
Jison clenched his jaw, utterly defeated.
"Tch…"
He grabbed his phone from the table and began scrolling aimlessly, trying to mask his embarrassment.
"Go get changed."
But internally—
His thoughts drifted again.
System said night…
His eyes flickered briefly to the time.
3:47 PM.
Still so fucking early…
Min-ji walked off toward her room, still smiling to herself.
Jison watched her leave.
Then—
A thought crossed his mind.
His eyes sharpened slightly.
[Peeking]
A crimson-black holographic screen manifested instantly.
---
Park Min-ji
HEIGHT: 136 cm
WEIGHT: 46 kg
STRENGTH: D
SPEED: D-
POTENTIAL: B
INTELLIGENCE: A
ENDURANCE: C-
---
Jison's entire body went still.
"…what?"
His pupils shrank.
His complexion drained of color.
For a moment, he looked like someone whose soul had nearly exited his body.
Every stat… D or above…?
His throat felt dry.
Strength, speed… even endurance…
And then—
Potential.
B.
Intelligence.
A.
His mind struggled to process it.
She's…
A single thought crystallized with terrifying clarity.
She's fucking monstrous.
Then suddenly—
Something clicked.
His expression snapped back into focus.
"Skill Info."
The system responded immediately.
---
[Skill Window]
1. Peeking (Lv-1) (Active Type)
2. Uppercut (Lv-0) (Active Type)
3. Low Calf Kick (Lv-0) (Active Type)
*Click On Skill For Skill Information
---
Without hesitation, he selected—
Peeking.
The interface shifted.
---
[Peeking (Lv-1)]
[Peeking skill can be used to know the information about the targeted person. It also can be used on user. It can't show the info of the target much more stronger than user.]
[Use (50/50) To Upgrade The Skill Level.] [Upgrade]
---
Jison stared at the glowing [Upgrade] option.
A slow grin spread across his face.
I knew it...
He exhaled lightly.
I only needed to use it just once to upgrade…
Without another thought—
He pressed it.
[Upgrade]
The screen flickered violently for a brief moment.
Then stabilized.
---
[Peeking (Lv-2)]
[Peeking skill can be used to know the information and weakness about the targeted person. It also can be used on user. It can't show the info of the target much more stronger than user.]
[Use (0/100) To Upgrade The Skill Level.]
---
Jison leaned back slightly.
His eyes gleamed with newfound interest.
Weakness…
That single addition changed everything.
This wasn't just information anymore.
It was advantage.
His fingers curled slightly.
Now this…
A faint smirk formed on his lips.
…is fucking useful.
A few moments later, the sound of a door creaking open echoed through the house once again.
Min-ji stepped out of her room.
And immediately captured Jison's attention.
She was wearing an oversized black T-shirt that nearly reached her thighs, paired with loose blue pants far too large for her frame.
More specifically—
Jison's black T-shirt.
Completely oblivious to the danger approaching her existence, Min-ji struck a dramatic pose in the middle of the hall.
Her left hand rose elegantly to her forehead, three fingers touching it lightly, while her other hand rested against her waist.
She tilted her chin upward proudly like a runway model.
"How am I looking?" she asked confidently.
The crimson system screen faded from Jison's vision.
Then he looked at her.
"…Huh?"
At first, his expression was blank.
Then—
Slowly—
It twisted.
Wait a fucking minute…
His eyes narrowed dangerously.
Isn't that my T-shirt?
The exact one he had spent an entire month searching for.
The exact one Min-ji had repeatedly claimed she "definitely didn't see."
His eyelid twitched.
Meanwhile, Min-ji noticed him staring and walked toward him with exaggerated confidence.
Leaning forward slightly, she smiled teasingly.
"Why are you staring at your sister so much?"
But Jison wasn't listening anymore.
A dark aura practically radiated from him.
"Isn't that…" he said slowly, voice disturbingly calm, "…my T-shirt?"
Min-ji froze.
"…What?"
For the first time since coming out, panic flickered across her face.
She unconsciously stepped back and quickly raised both hands defensively.
"N-no! I think you're mistaking this T-shirt for yours, hahaha—"
BOOM.
A loud impact echoed through the hall.
Moments later—
Min-ji crouched on the floor clutching her head, tears gathering in the corners of her eyes.
A massive bump protruded from the top of her head.
Meanwhile, Jison stood above her like a demon king who had descended to punish thieves.
His right eye twitched violently.
An imaginary crimson pressure seemed to radiate around him.
"Return stolen property," he declared coldly.
"You fucking goblin."
---
Several minutes later—
The siblings walked side by side through the evening streets.
An uncomfortable silence lingered between them.
Jison glanced sideways at Min-ji.
She was still visibly upset, cheeks puffed slightly as she walked with an offended expression.
His earlier anger had already cooled.
Now, guilt settled in instead.
Maybe I hit her too hard…
He awkwardly scratched the back of his head.
"Ah… well, Min-ji, sorr—"
"Hmph."
She instantly turned her face away before he could even finish.
Jison's eyebrow twitched.
"…Seriously?"
He shoved both hands into his pockets and looked forward irritably.
Why the hell am I even trying to apologize if she won't listen?
Still—
He understood why they were outside now.
After getting hit earlier, Min-ji had dramatically declared that emotional damage could only be repaired through food.
And somehow—
That had led them here.
"Tsk."
---
After walking for several more minutes, they finally stopped in front of a café.
Warm golden light spilled through the glass windows, creating a calm and inviting atmosphere.
Without waiting for Jison, Min-ji pushed open the glass door and entered immediately.
Jison sighed heavily before following after her.
The interior was surprisingly spacious.
Soft yellow lighting illuminated the café, giving it a cozy ambiance. Wooden tables were arranged neatly across the room while quiet music played faintly in the background.
A rich aroma of coffee, baked bread, and sweet cream lingered pleasantly in the air.
Min-ji quickly scanned the café in search of a seat.
The moment she spotted an empty two-person table near the corner, she marched toward it confidently.
Then, without even turning around fully, she waved one hand lazily at Jison.
"Go order."
Jison stared at her back for a few seconds in disbelief.
"…You're really treating me like a servant now."
But she ignored him completely.
Her grudge remained strong.
Another sigh escaped his lips.
Then he turned and walked toward the counter while muttering under his breath.
"What a troublesome little demon…"
As Park Jison approached the counter, the soft glow of the café lights reflected faintly against the polished surface.
Standing on the opposite side was a young employee.
Cute.
Elegant.
And undeniably attractive.
Her long hair was neatly tied behind her back, while the café apron accentuated her refined appearance. Even under the warm yellow lighting, her features stood out vividly enough to attract attention from several customers nearby.
Ordinarily, Jison would have felt awkward.
Nervous, even.
But after everything that had happened recently—fights, system quests, rooftop incidents—his tolerance toward beautiful girls had become strangely distorted.
At least externally.
Internally, however—
His heartbeat still betrayed him slightly.
He cleared his throat lightly and spoke in a composed tone.
"Two large cheese-corn pizzas, two chocolate milk, and one water bottle."
The employee smiled professionally and repeated the order.
"Two large cheese-corn pizzas, two chocolate milk, and one water bottle. Is that correct, sir?"
"Yes."
Her fingers moved swiftly across the keyboard as she entered the order into the system.
A second later, she rotated the POS terminal toward him, displaying the QR code.
Jison immediately took out his phone, opened his banking application, and scanned it.
9800 won.
He paid without hesitation.
The girl glanced at the screen and smiled politely.
"Sir, please wait a moment. Your order will be ready soon."
Jison nodded slightly before turning around and walking back toward Min-ji's table.
---
When he returned, Min-ji was completely immersed in her phone, casually swinging one leg beneath the table.
Jison sat down across from her and leaned back slightly into his chair.
Finally.
A moment of peace.
The atmosphere between them had softened somewhat, though traces of Min-ji's earlier grudge still lingered.
Several minutes passed.
The quiet background music continued flowing gently throughout the café while customers conversed in low voices around them.
Eventually—
Boredom settled in.
Min-ji lazily rested her chin against her palm.
Then suddenly—
She heard approaching footsteps.
Her eyes shifted instinctively toward the source.
A café employee was walking toward their table carrying a tray loaded with food and drinks.
Min-ji straightened slightly.
"Order's here."
Jison casually turned his head—
Then froze.
"…Seo-yeon?"
The girl holding the tray was none other than Lee Seo-yeon.
For a brief instant—
Both of them stared at each other.
Shock surfaced clearly in Jison's expression.
Meanwhile, Seo-yeon also looked visibly stunned.
But then—
Her gaze shifted.
Toward Min-ji.
Toward the girl sitting comfortably across from him.
And instantly—
Something changed.
The color subtly drained from her face.
Her expression flattened.
Emotionless.
Cold.
Yet beneath that composure—
A faint current of irritation was unmistakably present.
Still, she maintained professionalism.
Without responding to Jison's shocked voice, she calmly placed the tray onto the table one item at a time.
Pizza.
Chocolate milk.
Water bottle.
Every movement was precise.
Controlled.
Too controlled.
Then finally—
She looked directly at Jison.
A smile appeared on her lips.
But it wasn't genuine.
It was the kind of smile people wore when suppressing annoyance.
"Enjoy your food."
Her tone was polite.
Yet sharp enough to cut.
Then she turned immediately and walked away.
Leaving behind an atmosphere thick with confusion.
---
Jison stared at her retreating figure blankly.
"…What the hell was that?"
Meanwhile, Min-ji observed everything carefully.
First Seo-yeon.
Then Jison.
Then back to Seo-yeon again.
A slow realization surfaced in her eyes.
"…Do you know her?"
Jison finally looked back at his sister while pulling one of the pizza trays closer to himself.
"Yeah," he replied casually. "She's the girl I was talking about earlier."
Min-ji picked up her own pizza tray and placed it neatly in front of herself.
Then, after a brief pause, she spoke with complete certainty.
"I think she misunderstood us and got angry."
Jison blinked.
"…Huh?"
Min-ji took a sip of chocolate milk calmly before continuing.
"She probably thinks I'm your girlfriend."
Silence.
Absolute silence.
Then—
Jison's eyes widened dramatically.
"…WHAT?"
His voice nearly echoed through the café.
Several nearby customers glanced toward him briefly.