Yeonseo's Secret Surveillance
It was a certain summer day right before the first break.
For the sake of Yeonseo, who would soon be heading to the US, Yuchan had come out for an overnight stay after a long time and was lost in a deep sleep.
Lying next to him like a corpse was Yeonseo, sleeping soundly....
Swipe. Suddenly, her eyes slyly opened.
“……”
She had been waiting the whole time for Yuchan to fall asleep.
Glance. Confirming his steady breathing, Yeonseo slowly raised her body.
No tossing or turning—he wouldn't wake until morning at this rate.
‘…So cute.’
Smack. Kissing Yuchan's forehead, Yeonseo carefully slipped out from under the blanket.
She grabbed Yuchan's phone, which was charging, along with her own, and headed to the living room....
Yuchan's phone lock screen blocked Yeonseo.
“…….”
Of course, that wasn't enough to stop her.
Swipe. Swipe. In an instant, she unlocked it, then fiddled with her own phone to install something on Yuchan's.
It was a surveillance app she'd used before.
[Installed.]
She quickly erased all traces, committing the perfect crime. Yeonseo secretly returned Yuchan's phone to its original spot and came back out to the living room.
Now it was time to peek into his private life without worry.
‘This is all your fault.’
If he hadn't made her anxious in the first place, she wouldn't have to do this.
He hadn't dropped out when school split them apart, and he'd thrown a tantrum refusing her calls? And the phone he proudly "saved up for" was some beat-up old used one.
Yeonseo thought he should be grateful she was holding back this much.
‘Let's see what we've got.’
She calmly scrolled through the call log from top to bottom.
“…?”
Yeonseo paused at a strangely frequent unfamiliar name.
‘Han Yeoryeon?’
No matter how generous you were, it didn't sound like a guy's name.
“…….”
After a moment's thought, Yeonseo opened the messenger and searched for Han Yeoryeon.
Sure enough, there were recent chat traces....
‘…A girl.’
Her profile pic showed a woman's face.
“Hng….”
Her face chilling, Yeonseo glanced toward the master bedroom where Yuchan slept, then dove deep into the chats with Han Yeoryeon.
She soon uncovered a few shocking facts.
The previous owner of the used phone Yuchan had "bought separately" was none other than Han Yeoryeon.
From the day the phone changed hands up to today, they'd been in near-daily contact.
Yet Yeonseo had never once heard the name ‘Han Yeoryeon’ from him.
“…Kang Yuchan….”
Realizing Yuchan had been hiding Han Yeoryeon's identity, Yeonseo ground her teeth.
A massive sense of betrayal made her head spin; she wanted to storm into the room and beat him until he snapped out of it....
But she quickly shifted her anger elsewhere.
Why had Yuchan hidden Han Yeoryeon's existence?
From their recent messages, ‘Han Yeoryeon’ knew about ‘Ma Yeonseo’s’ existence.
In other words, she knew Yuchan had a girlfriend but kept contacting him anyway.
That alone was enough for a death sentence, but she even subtly trashed Yeonseo's reputation.
She seemed just waiting for them to break up.
‘This fucking bitch dares...’
Yeonseo easily saw that Han Yeoryeon had feelings for Yuchan.
The frequency of their contacts was solid proof.
Nine out of ten times, Yeoryeon messaged first, and she made overwhelmingly more calls.
She was blatantly flirting, and clueless Yuchan was eating it all up like an idiot!
‘I should've forced him to change it back then.’
Yeonseo bit her lip, regretting indulging his whims.
The one silver lining: Yuchan didn't seem to feel anything beyond friendship for Yeoryeon yet.
It was barely a relief. If it had gone that far....
“…Haa….”
Yeonseo pressed her hand to her forehead, admitting she'd been too complacent.
She should've assigned someone to watch him as advised, or kept him from school entirely.
‘…No more leniency.’
Hardening her resolve, Yeonseo decided Yuchan needed a firm reminder too.
That the only one right for him...
Was Ma Yeonseo alone.
It was a weekend with break just around the corner.
After spending from Friday night through the whole weekend with Ma Yeonseo, I'd come home to rest before school tomorrow.
‘That girl. Isn't she secretly a succubus or something?’
For some reason, she'd been even more ferocious than usual.
Like someone pissed off—rough and violent, you could say.
She'd sucked every last drop of my energy, leaving me too drained to even twitch a finger.
‘Early bed tonight...’
As I sank into languid exhaustion, trying to recover...
Bzzz— Bzzz—
A message suddenly came in.
‘Who is it.’
I reached out lazily and checked my phone.
‘Han Yeoryeon?’
She often messaged out of the blue, so I opened the chat without thinking....
“?!”
My sleep vanished at the two photos on screen.
She'd sent mirror selfies.
Not just any—but full-body shots in a bikini.
Turns out she wanted me to pick the prettier one of the two.
‘Is she nuts?’
My face heating up, I hurriedly replied.
Tongue-tied for a sec, I sent a question mark emoji.
Not wrong, exactly.
Bikinis are cuter than rash guards....
‘N-No, snap out of it.’
Shaking my head, I said firmly.
No reply for a while—I thought she'd given up.
After all the pretty this and that, this was the real reason.
Scratching my head at her plight, I reluctantly agreed to help this once and calmly compared the photos.
‘Guy tastes, huh...’
The first was a safe beige bikini design.
A bit less than Yeonseo, but it nicely highlighted her model-worthy killer figure.
The second, though....
‘...Isn't this just underwear?’
Even at a glance, it was super risqué.
Much less fabric up top and bottom, intense color drawing eyes straight to the goods.
My taste was #2, but #1 was definitely right.
After some thought, Han Yeoryeon thanked me.
I'd gotten a good look anyway, so I hoped her love life went well.
...No need, really.
Back to weekdays.
“Yuchan! Walk home with me!”
“Fine by me. Your friends?”
“Ah.... Told 'em to go ahead.”
“Okay?”
Today, I was walking home with Han Yeoryeon again.
I vaguely sensed she wanted to go together on purpose, but no reason to refuse.
Walking home with a friend wasn't a big deal.
“So, what do guys usually do on dates?”
“Dunno. I just follow my girl's lead.”
“Ooh, caring guy?”
“Caring? Nah, just habit now.”
Since helping with the bikini, Han Yeoryeon had been super into dating talk.
She hadn't cared when younger, too busy as a trainee to think about it, but now with some free time, she wanted to try it out.
Not weird, but watching from the side, it was a bit frustrating.
She shot down every guy who approached.
This one's meh, that one's whatever—even rejecting hot ones.
So picky.
‘She got a crush or something?’
With my 100% intuition, odds were high she liked someone specific....
If she really wanted, she'd go for it herself.
‘She'll figure it out.’
We chatted casually toward the school gate as usual.
“Yo, super hot girl at the gate.”
A group of passing guys' chatter caught my ear.
“How hot?”
“Tall, killer body. Like a celeb.”
“For real?”
“But scary as hell, they say.”
“Huh?”
Yeoryeon heard it too, obviously.
“From another school?”
“Here for her BF maybe.”
“Whoa! Your girl?!”
“Nah, why would she come here.”
We bantered idly toward the gate.
“Y-Yuchan. That person over there, isn't she...?”
“...Huh?”
Soon we spotted the rumored girl.
“!”
Ma Yeonseo. She was really standing at the school gate.
‘Why the hell is she here?’
The moment we saw her, her eyes turned our way.
Undeniably. Precisely. Staring right at me.
‘Busted.’
Remembering Han Yeoryeon beside me too late, I tried to send her ahead first.
“Hey, Yeoryeon. Sorry, you go on...”
Right then.
“…!!”
Yeonseo was suddenly right in front of us.
With a face scary enough to send chills down your spine.
“Y-Yeonseo! What brings you here?”
I subtly blocked Yeoryeon with my body, playing it natural.
“You said you were at school earlier...”
But Yeonseo peered past my shoulder at Yeoryeon.
“So you're the slut who seduced my Yuchan.”
“...What?”
“Y-Yeonseo! It's not...”
SMACK---!!!
No time to stop her—she swung her hand full force.