Chapter 25 – Childhood Friend Seo Yerin, Leashed Bitch Play Review / Milk Cow Reservation

The moment I opened my eyes in the morning, I headed out to the living room.

“......”

The living room was a disaster.

Of course, I'd used Clean on Yerin the second our play ended yesterday. The living room, too. But whether it was the late-night exhaustion or the leftover excitement, plenty of spots were still a mess, so I went over the floor once more, meticulously, casting Clean again and again.

It felt similar to running a vacuum cleaner—except that here, all it took was a sweep of the eyes.

“...Would've been nice if it had a dust-removal function too.”

Clean, after all, only cleaned up liquids. Cleaning was still cleaning, and that part I had to do myself.

And above all—

“...I really need to air this place out.”

The living room was thick with what could only be called the scent of Yerin's flesh. A smell that made my head run hot from a single sniff.

“......”

I shook my head and hurriedly opened the window. If I stayed buried in that scent any longer, I had a feeling I'd end up committing some kind of crime.

As the cold air streamed in, something like self-loathing and guilt washed over me anew.

...Even by my own standards, that was a bit much.

I'd made her soak the entire living room floor with her love juices, made her piss herself, and when even that wasn't enough, I'd kept pushing her after she passed out—until she stopped reacting altogether. Even I had to admit I'd behaved a little like the lowest scum alive.

When I got drunk on play, there were moments I could feel my own sanity slipping, too.

“Well, it's not like I went that far because I was out of my mind.”

There was a reason. A perfectly rational explanation for why I'd pushed her hard enough that even my own retrospective made me wince.

Yerin had, twice in a row, posted ratings that came out at practically zero.

This was a review Yerin registered the day after I tormented her with two toys—she'd gone and masturbated all on her own. It was already down to one star.

And that wasn't the only problem.

And this one was registered on the first day I played with Lee Jieun—after I came home late and she'd masturbated yet again.

“...So basically.”

Because I neglected her, she masturbated by herself, got angry all by herself, and registered a zero-star review. Yerin simply could not stand being neglected.

“...Thinking about it, it's honestly mind-boggling.”

Truly mind-boggling.

Her being pissed about being neglected because I came home late after teasing Lee Jieun's ass—that I could understand. Right, come to think of it, that day I'd said I'd be home by seven and strolled in late. On top of that I'd skipped play entirely, so the zero-star review was fair enough.

But then what the hell was this?

This one wasn't even neglect. How does someone masturbate alone, get angry alone, and dock it a star......?

“I wasn't out gallivanting without her—I was at school. And in the meantime she masturbates on her own, decides she doesn't like it, and gives it one star...?”

My mouth hung open in disbelief; I half expected drool to leak out.

How? How could a girl like this exist? What kind of girl even does this...?

“Yerin... what am I going to do with you... masturbating on your own and dropping my scores...”

“......”

“Should I put you in a chastity belt......?”

I called out to Yerin blankly from the living room, but of course there was no answer. She'd be half-unconscious in her room. I had deliberately kept my voice down to a whisper, just in case she might hear.

“...Anyway.”

Anyway—because Yerin kept pulling this stunt, masturbating alone and stewing herself into handing out zero and one stars, the system had issued a warning.

In the end, I'd had no choice but to satisfy Yerin properly this time around.

So as I ran a session built to fill every one of those walls, I naturally ended up pushing a little harder than usual.

“......”

Not that I hadn't gotten a bit worked up myself, but......

I lowered my head, took care of this and that, and knocked on Yerin's door.

—Knock, knock.

“Seo Yerin. You awake?”

In place of an answer, something thudded softly against the door. She'd probably hurled a pillow or the like at it—but the sound was pathetically weak.

“You okay?”

“......”

No answer, but I didn't push. I didn't need to look to know what state she was in.

She'd spent the small hours leashed like a dog while I toyed with her nipples, and came so hard it was as if every drop of liquid in her body had been wrung out—there was no way she'd be functional. ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠I had cleaned her up with Clean right after she blacked out, but stamina was the issue. If I drove her to the point of passing out every single night like this, Yerin's body wouldn't hold up.

“Hmm.”

I opened the app and pulled up Yerin's info window.

I spent points to raise her stamina stat. Her appearance and sensitivity stats I left untouched.

With appearance, even just three tiers was enough to make someone unrecognizably attractive—a fact I knew from personal experience. Seo Yerin had acted like she barely recognized me, and the iljin pack who used to treat me like some kind of worm had looked at me like I was an entirely different person.

“....”

But I left them alone. Something about messing with Seo Yerin's appearance felt off, somehow. And as for sensitivity—

“She's already a pervert. Crank her sensitivity on top of that and there'd be no handling the results.”

That was why.

The moment I pressed confirm, the app whirred to life.

When I'd done it, it had definitely taken twelve hours or so. The application time was a bit shorter than it had been for me.

“A level-difference thing?”

I'd jumped mine from 1 to 3 in one go, while Seo Yerin's only went up to 2.

Well, level difference or not, even with her stamina restored she wouldn't be crawling out of that room right away. The stimulation her body remembered would still be there. Her nipples, tortured without mercy into hypersensitivity, would surely react to the mere brush of the blanket.

“Mmm...”

Thinking about it sent something surging up inside me again. I shook my head and shook the arousal off.

—Tap, tap.

—Bubble, bubble.

Before leaving for school, I made egg soup and a few simple side dishes and set them on the table.

—Knock, knock.

“Seo Yerin. Yerin?”

“......”

“Yerin? Food's on the table—come out and eat. I'm heading to school.”

“......”

As expected, no answer—but at least there was no growling, either.

I left my apartment and checked my phone. It was just about time for her review to come up.

—Ding!

Sure enough, a notification was waiting. I opened the app right away.

“Let's see what she wrote...”

I scrolled down—and froze. From the very first line, it was ominous.

“......”

“.........”

“Gah.”

I flinched in horror and swept my eyes around me.

“Y-Yerin. Sh-she's not here, right?”

“......”

The people walking nearby gave me looks that said what's wrong with this guy and ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠smoothly drifted a few steps away.

“......”

I couldn't bring myself to scroll down any further. I couldn't face reading whatever might be written there.

“...I'll read it later.”

Later—for today, I'd just skim the star ratings.

“...Oh no.”

I was done for. This was bad.

Sure, I'd definitely gone overboard. But to have the ratings buried this deep? I'd satisfied every last one of Seo Yerin's walls—and the ratings were still this crushed?

It felt unfair. It felt infuriating.

“How could you do this to me...?”

—Ding!

The system kept refreshing the screen.

“...There's still a chance. Let's see... uh......”

Reading what came next, I felt myself go a little numb.

“...Why are these so high?”

Had I perhaps... put my hands on something I wasn't supposed to touch?

Right. The other things—the four-star entries—I could understand. But why...?

Yerin. You cried because you wet yourself. You sobbed about how you didn't want to pee—so why five stars? Why did you give it five stars?

“Five stars means a perfect score, you know, Yerin...”

Don't tell me she likes pissing herself? After crying like that?

“...Doesn't seem like it.”

There was a conditional tag attached to it. It didn't mean it was fine to just make her come—it meant it was only fine under specific circumstances.

“...Let's move on for now.”

Setting the piss aside, the other one was a serious problem too.

“Yerin...... why on earth......”

Why on earth did you like blackout play? What was your reason? Didn't you once nearly fill the entire review box writing that you'd kill me if I ever did blackout play again?

Just in case, I paged back through the old reviews.

“...See?”

It said right there: blackout play, and she'd kill me. And yet somehow it had happened again. So why was the rating high this time too? It was even higher than last time—back then it was five stars plus one; now it was five stars plus three.

“Yerin. What on earth is wrong with you......”

Why did this girl have such bizarre walls? Did she like being treated like a toy because she reviewed toys?

“Did new walls get added in the meantime?”

Half suspecting, I opened up Yerin's wall list.

“It's not there......”

There was no wall for blackout play. So why?

“Why do you like it that much......”

What on earth was blackout play to Yerin? Why did she love it that much?

“......”

It felt like something was on the tip of my tongue, hovering at the edge of my mind, but it just wouldn't surface.

“...Whatever.”

At least the satisfaction had registered high—that was a relief. If I hadn't done it properly this time, Seo Yerin might have been deregistered for good.

—Ding!

The app kept chiming.

I didn't really need to check every one of those entries. But still—five hundred points for a first piss.

“Can't tell if that's stingy or generous.”

Well, it was bonus-tier money either way. The problem was the next entry.

“...How many times did she come?”

Eight basic climaxes. Thirteen special ones. Twenty-one climaxes in total.

“...Don't tell me I nearly killed her?”

If a man fired off twenty-one loads, he'd die of cardiac arrest. Women were built a little differently, supposedly, but......

—Ding!

The app kept refreshing the screen.

“......”

Impressive, Yerin. Truly.

I haven't read your review, but judging by the payout, you clearly wrote about yesterday's session at great length and in exhaustive detail. And no matter how long and detailed it is, I still won't be reading it.

“Because it's terrifying.”

When the very first sentence announces you're going to kill me, the sensible move is to watch your back.

“Later. I'll read it later.”

It would be perfectly fine to read it later. This was absolutely, in no way, because my conscience was pricking me for pushing too hard.

I swiped to the next screen.

Yerin had earned me a mountain of points. My balance had gone from 1800 to 4300.

Feeling flush, I flipped breezily through the purchase catalog.

The list ran on for quite a while below that, but I stopped right there.

“...Breast development? A milking device?”

In other words—grow her breasts with the development cream, and then use the milking device to......

“Turn Seo Yerin into a milk cow?”

That, I figured, would be quite the sight worth seeing.