Chapter 25. My Own Little OO (Younger Sister)

My oppa is an idiot.

He wanders around outside without a shred of caution, so hopeless that his own little sister has to look after him. Yesterday he even ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠vanished without a word. He claimed he was going to school — honestly, who knew what might have happened to him?

'Idiot. Why do you keep making me worry like this?'

So I told him to text me every time he went out. Unnie was busy with work, so someone had to keep an eye on him. ...And in the end, my oppa obeyed exactly as I'd told him to.

Today he'd been gaming with his friends at the PC bang since morning, when his phone started buzzing.

Reading the texts, I felt the corners of my lips curl up. I should praise him for it, one of these days.

'Hmph. You'd better be thankful I'm your little sister.'

After all, he deliberately used the PC bang closest to home, and he kept his phone right in front of him so he could bolt the second anything happened.

Even mid-game I kept sneaking glances at the phone like that, until my friend asked,

"Dami, who're you waiting for?"

"...No one."

Me, waiting for my oppa? As if. I blew a raspberry and shoved the phone off into the corner, then turned back to the monitor and tried to lose myself in the game again.

But then.

"Ugh..."

"What?"

"...Nothing."

My posture was awkward. The mouse kept snagging for no reason and I couldn't concentrate at all. I reached to let go and shift in my seat—

While my eyes had wandered, the game had collapsed on us.

The moment the gray defeat screen came up, we both slumped at the same time, sinking back into our chairs.

"Dami, why are you so bad at this? Heh heh."

"Aargh..."

Feeling like something was stuck in my throat, I grabbed the cup beside me and downed it in one go.

I knew Yang Dajun had gone out, but the very sense ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠of an empty house — no trace of anyone home — felt suffocating. I ruffled my once-neat bob into a mess and bit my lip hard.

"...Fine, I'm heading out. For real this time."

"Why?"

"Sorry, I'm going home early."

I was tossing the game aside and getting up when my friend grabbed my arm.

"Nothing's wrong, right? You did this yesterday too."

"No, I just want to head in early."

Waving it off like it was nothing, I left my seat behind.

'Yang Dajun, you idiot.'

I walked so fast the wind whipped my hair back, and by the time I got home I'd shaved a good chunk off my usual travel time.

'Looks like someone's home.'

Unlike earlier, I could feel signs of life inside, and even as I opened the door I couldn't help hoping a little. He said he was going to study — maybe he'd come back earlier than expected. Maybe Yang Dajun would even be there to greet me.

...But the person who greeted me wasn't my oppa.

"Uh, unnie?"

"Oh, Dami's home."

It was my unnie, Yang Dahee.

Clunk.

The old front door banged open loudly. It was the sound of Yang Dajun coming home.

'You're late, idiot.'

Even as Yang Dami thought that, she was the first one to dash for the door. She ran so fast that a breeze swept through the spot she'd just left.

'Uh...'

But the person greeting Yang Dami was not the Yang Dajun she knew.

'Your hair... it's different?'

It changed him so much he looked like a different person. She'd turned down countless confessions, but if it hadn't been 'her oppa,' she might have swooned too.

'But who did you get your hair done for?'

The longer she stared at Yang Dajun, the more her lips pouted out. Did he want to impress some other family's girl that badly? If he'd just come home early instead... Yang Dami whipped her head away and marched straight back into the house.

"Hey, hey, Yang Dami..."

'Hmph.'

Yang Dajun's voice chased her from behind, but she didn't even want to acknowledge it.

And a little while later, Yang Dahee came back too — cheeks puffed out, lips pursed in a sulk.

"Hmph..."

To think he'd sour even the unnie who'd been fussing over him like that. Yang Dajun really was an idiot.

'Well, that figures.'

He was such an idiot that he might be sulking himself half to death right about now.

'Hmph, you'd better be grateful. I'm only letting it slide because I'm your little sister.'

It seemed best to strike up some conversation — ask what he'd been studying, why his hair looked like that again.

So she turned her head to say something... only to find Yang Dajun hovering around their unnie instead.

"Noona, you must be so tired."

'...'

"I could give you a massage, like yesterday—"

"I don't need one."

Idiot.

Watching Yang Dajun fuss and flutter beside their unnie, Yang Dami clicked her tongue inwardly.

'And I'm his real little sister...'

Wounded, she shot sidelong glances at the two of them. She wanted him to pay a little more attention to her. She was even debating whether she had to act sweet the way their unnie did.

'...How could he.'

Yang Dami had a cold look about her, much like her unnie's. So she simply kept staring straight at her oppa.

"Wh-what..."

Did she really have to say it out loud? Hoping he'd figure it out on his own, she held his gaze for a long, pointed moment.

"..."

But Yang Dajun was oblivious. She couldn't even get the words out, just fidgeted in silence — and that made her angry.

"Hmph."

"Wh-why..."

"Yang Dajun, you idiot."

"Ah, uh..."

Yang Dajun hunched his shoulders and fled to his room. That displeased her too, and she clicked her tongue yet again.

'Hmph... nothing gets done if I just sit here.'

At the same time, without her even realizing it, the corners of her mouth had lifted softly.

A little while later, dinnertime.

Even while eating, Yang Dami kept stealing glances at Yang Dajun.

'He keeps checking the unnie's mood.'

Yang Dajun did nothing but gauge their sullen unnie's expression.

'Ah, he looked at me.'

Whenever he glanced her way now and then, she'd almost feel warm and fuzzy inside — then it would wilt just as fast.

'...And he's looking at unnie again.'

She didn't even wish for an oppa who belonged to her alone, but somehow it stung. If he was going to keep this up, she wouldn't have hoped for anything in the first place. Yang Dami was stabbing peevishly at her rice bowl when—

'Aargh, why is he so obsessed with her mood?'

Yang Dajun was working hard to soothe their unnie, telling her not to worry since he'd only been studying.

Watching that, she almost felt he deserved the resentment for rushing home in the first place.

"Hmph."

"Wh-what..."

Yang Dami pushed out her lips and snapped at him.

"Why don't you just live there, then? Why'd you even come back, idiot?"

But Yang Dajun's answer was unexpected.

"Because I missed you and Noona..."

'Huh?'

She stared at him, eyes wide, nearly opening her mouth without meaning to — had she really heard that right?

Her heart was hammering, but thankfully Yang Dajun was looking at their unnie.

'A-anyway... what did he just say?'

Thanks to that, Yang Dami managed to steady her trembling eyes and glare at him properly.

"Hmph, quit spouting nonsense..."

The corners of Yang Dajun's mouth dipped a little. Her mocking snort had deflated him, apparently.

Even with that wounded-puppy look, his face was actually pretty easy on the eyes.

Ba-dump, ba-dump.

Her heart was still racing, and embarrassed by it, Yang Dami quickly ducked her head.

'Idiot, idiot, idiot...'

To look nonchalant, she sped up her chopsticks. If she ate slowly, it would give away how flustered she was. If she ignored her food and kept staring at Yang Dajun, the tiniest flicker of happiness might show on her face.

Feeling like everyone was watching her, Yang Dami blurted out whatever came to mind.

"...I want beef bulgogi."

It was her unnie, Yang Dahee, who indulged the whim.

"Hehe, you're right. I want some too."

Yang Dajun, true to form, just kept eating his rice.

'Ugh, seriously. Am I the one who has to step up...?'

"Ahh, I'm stuffed."

I flopped face-down onto my bed.

During dinner I'd had to mind both women's moods, but the moment I returned to my room, all that tension drained away. And naturally, other thoughts came flooding in.

'Met a lot of people today, huh.'

I hadn't known where I was going was the Chae family hair salon. Chae Gayeon included, the sisters were both stunning — looks-wise, neither lost to anyone.

'Yurim's gorgeous too, though.'

It was hard to say who was prettier. Conveniently, both had great personalities as well. Still, she was my childhood friend — my heart leaned toward Yurim.

'Her little sister is a whole different story, though.'

Not that Lee Yeryeong's personality was bad, exactly — she was just anything but ordinary.

She'd shed the demure little girl I remembered from childhood and turned into a woman who smiles with her eyes like she's out to seduce every man in sight.

"Hnnn..."

I remembered Yeryeong blowing air into my ear. The inside of it tingled, and I hunched my shoulders and dropped my head without meaning to.

'She was insanely forward.'

The most aggressive of any woman I knew. Of course, when I got home, 'Noona' had wrapped me in her arms and gone around sniffing me too.

'That was dangerous...'

Even knowing she was my noona, even knowing she did it out of sisterly affection, the moment Yang Dahee hugged me, my heart pounded fast.

A beautiful woman burying her face against me and rubbing her cheeks all over — that's not something even actual couples do.

'Her chest was huge, and she smelled so good...'

From her looks down to her figure, purely as a woman Yang Dahee was the kind you'd want to wrap yourself around on the spot. And that 'noona,' going about the house like always... I caught myself picturing her half-naked body, and before I knew it I was hard.

'It's freaking huge...'

Even out on the street earlier, women's eyes had kept drifting my way.

By a woman's standards it would count as an enormous chest, and this area was short on men — the attention was inevitable.

"Pretty amazing, honestly."

Muttering that, I picked up my phone.

For the first time, I kind of understood the feeling of people who post pictures of their own bodies online.

'Proud of it, huh.'

I ran my hand along my cock, then snapped a photo.

How would people react to seeing this? I was curious how it would land in an internet world dominated by women.

So I blurred out the background enough and made my post.

Cool, understated content. The tone was 'Yang Dajun'-like but not manly in the least.

Not a single aegyo move — just the bare hint of "I'm a man," nowhere near enough to draw attention on its own.

But the cock pic I'd attached was apparently stimulating enough for the women, and the comments came pouring in.

I read the comments and murmured under my breath.

"Show me yours too, unnie..."

"It really is mine, though. Heh heh..."

"I want you two to pounce on me together..."

'Huh, so there are other people who post like me, huh.'

I kept refreshing and checking the comments.

'Seriously though. Why isn't it getting deleted?'

On a male-dominated board this would have been nuked within minutes, yet it was still up even after everyone had read it.

Anyway — watching women curse at me made my chest flutter, almost like I really was being swarmed by them.

Savoring the reactions of those faceless unnies, I kneaded my cock in my hand.

"Hnnnngh."

A spine-chilling rush of exhilaration sent shivers crawling up my back.

Even though I'd already done it once before dinner, the dull ache down below was begging to be relieved.

'Nobody in this house goes to bed early, so porn is out of the question.'

What about a novel instead? I found myself getting curious about this world's web novels.

A 100-won promotion happened to be running, so I signed up on the spot. Cheap enough that even our household budget wouldn't feel it.

The plan was to find something decent and kill time until bed, using it as fresh spank bank material.

"Oh."

While deep-sea diving through the free serials, I found one that matched my taste. A bottom-tier author, but rare — a writer of male-oriented fiction.

'Probably a woman, judging by the author's gender. Hm... better than I expected, though.'

One chapter, two chapters... the premise hooked me, and before I knew it I'd caught up to the latest update.

I went to browse the comments and found I was the only reader.

'Then I should cheer them on.'

It was time to shower the author with affection.

And while I was at it, one more.

...This is harder than it looks.

But I had to endure it.

Raising my own little serial — my very own 'me-novel' — meant accepting a fair amount of spiritual suffering along the way.

Hoping to give the author strength, I went so far as to deploy the aegyo emoticons.

And finally.

"Yaawn..."

I let my arms flop ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠down and tossed my phone aside.

Staring at a screen for so long had left my eyes dry and my arms aching. ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠I was getting a very real lesson in how out of shape I was.

'Should I hit the gym?'

I'd get to meet women who work out there, too. I let out a hollow laugh at myself for thinking about meeting women again — right after getting off to lewd stuff, seriously...

'But it's hot, isn't it?'

Just today, three different women had shown interest in me. Yurim, Yeryeong, Chae Riji. And Noona... well, Yang Dahee had hugged me too.

Of course, if three women were going to devour me, stamina would matter.

'On that note — bedtime.'

I turned off the light and stretched out on the bed.

I'd pulled the blanket up and closed my eyes when the sound of a keyboard drifted in from outside.

'Working, probably.'

I let myself drift off, little by little.

· · ·

"...?"

A tingling at the tip of my nose opened my eyes again.

Even under the blanket, a chill filled the room and my body shivered uncontrollably.

"Brr, it's freezing."

Sniffling, I pushed myself up out of bed.

Our house was old, sure, but Yang Dahee had just turned on the boiler earlier — something was off here.

Rubbing my sleepy eyes, I stepped outside and went looking for Yang Dahee.

"Noona..."