Chapter 5: Sohyun's Bare Secrets
I got home and cranked my focus to max.
"No matter how I think about it, that's the only thing that makes sense."
The one thing that had changed between me and Sohyun was simple.
Lending her the money.
I rewatched the video carefully.
-I'll pay interest every day too. So, please...
Interest.
"Yeah. It's the interest."
The day after I lent it to her.
Sohyun gave me a soda as "interest."
I hadn't even thought about collecting any, but she offered it up on her own.
And then, after the Weekly Altered Common Sense system activated.
"That's when she first showed me her cleavage."
By unbuttoning her shirt.
I still remembered that black bra and the deep valley between her breasts.
"It said correct answer derivation is once per day."
By the time to clock out, it was already past midnight.
Since it had come to this, I'd confirm it tomorrow and nail it.
The next day.
I headed to the PC bang for work as usual.
Evening hours were busy as always.
After 10 PM, things quieted down a bit.
I could tell it was time when Sohyun started glancing around.
"U-um, oppa. Today..."
"This is about the interest, right?"
"...I'm too embarrassed to say it myself."
She turned her gaze away, looking shy.
'She won't tell me the answer first until I guess it.'
I'd felt it before, when slapping the boss's cheek.
The system was kind to me.
But until I guessed right, it was hard to hear the answer from the other person.
"Hang on. I gotta hit the bathroom."
I decided to state the answer somewhere private first.
Staring into empty space, I said it.
"Derive correct answer."
Then a white window smoothly materialized in the air.
Do you wish to derive the correct answer?
"Sohyun fulfilling whatever I want instead of paying interest on the loaned money is the new common sense. That's this week's altered common sense."
I felt a bit tense after saying it.
Correct Answer Match Rate: 87%
Failure. Did not exceed 90%.
"...Huh?"
So it counts as failure if it doesn't hit 90%.
"What was wrong?"
87% was basically spot on.
"Guess I need to be more precise."
I decided to go confirm it directly.
"Sohyun."
"Y-yes?"
"Uh, can we do something else for today's interest?"
"..."
Her face reverted to its usual blank expression at my words.
"Like what?"
"Not showing me something..."
"Showing's the only option."
"Got it."
Perfect.
Satisfaction outweighed any disappointment.
Now I knew the exact answer.
It wasn't "fulfilling whatever I want"—it was specifically "showing" something.
'Like before, whether I guess right or wrong, the altered common sense sticks for the week.'
That meant I could demand she show me something instead of interest for the remaining four days.
'What to see today...'
Staring at Sohyun's killer body stirred some dark urges.
My heart pounded.
Sweat beaded my palms.
'Yesterday she sat in the chair and spread her legs.'
Pretty much showing everything.
'Go bold.'
The system was on my side.
Any guy with a dick knows to take advantage.
Today she wore a sky-blue butterfly tie, white shirt, and a skirt without stockings.
Her bare white legs looked stunning.
Her ample chest strained against the shirt.
'Those tits for real...'
Sohyun had a pretty face, sure.
But those breasts were the star.
"Alright, Sohyun. Sit in the chair first."
"...Pervert oppa. Making me spread my legs again?"
"Ahem. Wanna try?"
"..."
A blush crept across Sohyun's face.
But it wasn't disgust.
I'd sensed it from the start—she didn't hate me at all.
She sat in the chair and parted her legs slightly.
A glimpse of pure white panties, innocent and alluring, peeked through.
'Holy shit.'
Fucking hot.
The black stockings from yesterday were great.
But these smooth, firm, fully exposed thighs hit different—insanely arousing.
Insane. Totally losing it.
'Those thighs...'
Does she work out?
Getting squeezed by them would be...
"That enough?"
"No. Hold on."
Couldn't end here.
"...What else here?"
"One more favor."
"...Nothing too intense, okay?"
I flinched.
Was about to ask her to pull the panties aside and show her pussy.
'Too much?'
As my gaze locked there, she started closing her legs.
"Don't imagine weird stuff. I'm not showing that."
"..."
Bummer.
"What's with that disappointed face? You actually expected it?"
"Guess not."
"Duh, obviously."
"Why not?"
Some weird stubbornness kicked in, and I kept pushing.
"That's obviously... Ugh. Give me time to think."
Huh? Wait.
'Is it actually possible?'
Sohyun bit her lip lightly.
"Sigh. Not now. But..."
She undid two or three shirt buttons.
A perfectly matched white bra came into view.
'So thin!'
My nose twitched.
Nosebleed incoming.
I stared wide-eyed, flicking between top and bottom.
Those slutty, imagination-fueling tits.
Smooth thighs and that barely-there thin fabric over her pussy.
Too damn hot.
'Driving me crazy.'
If this didn't get you hard, you weren't a man.
'Huh?'
But.
Sohyun's white panties...
'What's that?'
No way... wet?
Excited from showing me?
"S-stop."
Embarrassed by my blatant stare, she hurriedly fixed her posture and clothes.
"..."
The cloud-like arousal scattered.
I smacked my lips in thick regret.
"Today's... good enough, right?"
"Today's?"
"...Whatever."
Sohyun shot up and headed to the bathroom.
"Whoa..."
Thump. Thump.
Heart still racing.
I replayed the image in my head.
Sohyun got wet right in front of me.
'Getting soaked just from showing that much.'
Maybe that meant...
She saw me as a real man?
I thought she just viewed me like a sex doll or something.
'Hold up.'
I recalled what she'd said earlier.
'She said "not now."'
Why say that?
'Didn't want to show the wet spot.'
She covered up when she noticed the wet panties.
Which meant she didn't want to show a soaked pussy either.
'Then tomorrow...!?'
My lips curled up.
"Heh heh."
I grinned like an idiot without realizing.
"...Why the dumb smile?"
Sohyun was back, eyes narrowed.
"Nothing. Just."
"You embarrass me and look all happy about it."
"Embarrass how?"
Confidence surged.
Just seeing a bit of Sohyun's skin had me feeling bold.
"You call that nothing...?"
"I didn't steal a peek or anything."
"No, but staring like that? Your eyes were glued."
"Should I have closed them?"
"Ugh, seriously. Can't even talk to you."
"I just collected my rightful interest."
"..."
"You were embarrassed, huh."
"..."
"Sorry."
Her scary glare shut me up quick.
But the smile lingered.
Even boiling instant spaghetti.
Even cleaning.
No fatigue at all.
"Boss here?"
"Shit, you scared me."
"I'll work hard today too."
"...Uh, yeah."
Grinning even at the boss meant I was definitely hyped.
"Sohyun. Why's he acting weird?"
"...Dunno."
"And why's your face red?"
"It's hot. Hot. Boss, turn up the AC."
"...Fine. You handle it."
Midnight hit, and I left with Sohyun.
'Once I get the money back, this alteration ends.'
Does that mean no more peeks at Sohyun's skin?
Day 4 today.
Three more to go.
'Gonna see that pussy.'
Sohyun fidgeted beside me.
"U-um, oppa."
"Yeah? Sohyun."
"About the interest."
I hadn't guessed it right yet.
But now that I'd started guessing, she was opening up.
"Yeah."
"Nothing too embarrassing, okay?"
Her blank, cold tone suggested she didn't want to lose the power play.
'Can't back down.'
I wanted to look good to Sohyun.
But miss this chance? When else to see her pussy?
'Gotta stand firm.'
I stared straight into her eyes.
"Collecting interest is common sense, right?"
"True, but still..."
I cut in.
"I like living by common sense."
Damn, solid line.
I impressed myself.
"...Sigh."
Sohyun went quiet.
Didn't want to seem un-common-sense, I guess.
"See you tomorrow."
"...Yeah."
I clenched my fist.
This was working.
Tomorrow couldn't come soon enough.
Sohyun turned first.
I headed home.
Grabbed the side dishes from the first-floor lady, stashed them in the fridge.
Slept. Classes. Back to the PC bang.
Today, Sohyun rocked a black V-neck tee and skirt—elegant vibe.
The deep V-neck plunged into her cleavage, extra sensual today.
Work as usual, then past 10 PM.
I spoke first this time.
"Sohyun. Seems quiet now."
"...Sigh. Fine."
"Just that today. Exactly that. Promise."
"Total pervert..."
"Sit and spread. Show me."
She sat cautiously, parting her legs.
Sensual black panties hit my eyes first.
Her small, delicate hand trembled, grabbing the thin fabric.
She slid it aside.
"Whoa. Wow..."
Breath caught.
There, in the displaced fabric.
Pretty, petite pink flesh fully exposed.
The visual impact crushed me.
Pale skin contrasting black lingerie, red slit parted in the center.
Thump! Thump!
Shiver—
A chill raced up my spine.
Hairs standing on end.
Heartbeat thundering.
"Wow. So pretty..."
The words slipped out.
