Sounds
Three days had passed.
After the shocking revelation of our rewritten relationship in this altered history, Jae-min had thrown quite a fit — but somehow we'd managed to set it aside as water under the bridge.
Pushing a problem off to the side doesn't make it go away, of course, but we'd decided not to dwell on it and just live as usual. Dump everything on our future selves. It'd work out somehow.
But if you asked whether life had truly returned to normal — of course it absolutely had not.
I like cooking.
Not that I have any certifications, and I've never properly studied it, so I can't compare myself to a real chef. More like... if it's something I want to eat and it isn't too much of a hassle, I can make it myself.
So over the past month living with Jae-min, the unspoken rule — the routine — had been that I cooked and Jae-min did the dishes.
But ever since that first day after the TS, Jae-min had locked herself in her room except at mealtimes, which meant the dishes had become my job too.
"……"
I had a pretty good idea why.
And that reason was also one of the reasons our daily life was nothing like usual.
……Hnn……nnngh……♥
"……"
One in the morning.
In the dark room, I ran one hand along the wall beside my bed.
Not the solid feel of thick concrete — the lighter texture of something hollow. Knock on it and you'd hear a hollow ring. The soundproofing was worse than I'd thought.
……Hiiik……♥
The inadequate soundproofing between our rooms, which I hadn't even noticed until a few days ago, had become a serious problem.
…Because ever since that day, those moans had been coming through at all hours — and I had no way to stop them.
This place is a three-room, 2LDK layout.

A fairly spacious living room and kitchen combo. One room with a balcony off the living room, another with a window. And one decent bathroom.
Jae-min, who'd signed the lease, had claimed the balcony room first, so the remaining room became mine by default.
The problem was that my room sat sandwiched between Jae-min's room and the bathroom.
In this room, the everyday noises Jae-min made — noises that had never even registered before she became a girl — now came through with brutal clarity.
And above all—
……Hnnngh……♥
This crazy bastard's masturbation sounds were coming through!
I'd always known that anyone who'd throw a thousand-yen bill at a shrine and ask to be TS'd couldn't be normal. But to actually get TS'd and then spend the entire day masturbating?
And when I say "the entire day," I don't mean figuratively — I mean literally every waking hour except for meals and sleep.
I'd heard that women don't have a refractory period, but still — doesn't this girl ever get tired? Or does she just pass out when she's done? I thought I could hear her going to wash up before bed…
The moans were a noise problem, sure. But the bigger problem was that I was a red-blooded guy in his twenties living under the same roof, with only a thin wall between us.
Yoo Jae-min had become a girl.
Exactly as she'd wished — the most beautiful girl in the country. No, even that description fell short.
Honestly, her looks, her personality — she was a total strike in my strike zone. It almost made me wonder if that god had used my preferences as a reference when TS'ing her.
Even just watching her walk around the house was intensely stimulating.
Jae-min had always lounged around the house in a T-shirt and boxer briefs. That had been fine. She was a guy then.
The problem was that almost nothing about that look had changed after becoming a girl.
After the first day, the T-shirt had become a hoodie — but down below, the boxer briefs had been replaced by women's lace panties.
The hoodie was loose enough that the panties didn't show much, but it still amounted to a no-pants outfit.
The decisive problem was that she'd started acting embarrassed.
On the first night after the TS, I'd heard her moans for the first time. I was trying to sleep when those sounds suddenly started, so of course I reacted. I didn't say anything out loud — just got up — but the bed creaked when I moved, and she must have heard it.
So she knew. She knew her moans were carrying through to me.
And she knew I'd used those sounds as fap material that night.
From the next day on, Jae-min's lifestyle had basically become that of a hikikomori. The only times she showed her face were when I called her for meals or when she needed the bathroom.
During meals she kept her hood pulled down, ears bright red, and barely spoke even when I talked to her. Technically she answered, but she was muttering to herself so quietly I couldn't make it out.
Did this otaku pervert not realize that acting all shy like this only made her hotter?
……Haa……haaah……♥
Was she done?
Those moans from next door had me jacking off more often these past few days too. Already four times today — if her session had gone on much longer, I might have needed all five fingers of one hand before I could sleep.
Seemed like she was finished, so maybe I could finally get some rest.
……Hnn……haahk……♥
Bang!
……Hik♥
"Ah, damn."
I'd hit the wall without thinking. Yeah… getting my libido constantly stimulated all day had built up more stress than I'd realized.
Should I just go one more round and then sleep?
……
Had she frozen up?
……
Suddenly nothing. Was she actually scared?
But the Jae-min I knew would get more aggressive if anything — she wasn't the type to quit over something like this.
She'd always had a complex about being short and small, and if anyone said anything about it she'd come out swinging.
While I was thinking that, a knock came at my closed door.
Knock knock.
What.
Had she come to complain that I'd interrupted her?

I opened the door, and there stood Jae-min, glaring at me.
"……What."
I looked her over as I said it.
Flushed red face, ragged breathing, that heated breath she was trying and failing to hide. The look in her eyes was almost like a beast gone mad with lust.
If I glanced down a little — moisture half-dried between her legs, as if it had been running for a while.
I already knew, but anyone could see it… yeah.
"Fuck."
"Why the hell are you swearing at me all of a sudden."
"Because of you, you fucking bastard!"
"I did that reflexively, okay? If you were doing it alone somewhere I wouldn't care, but listening to it all day long is driving me insane too."
"Nngh…"
"Look, I know you're a perverted otaku, but doing nothing but that all day long is a problem, don't you think?"
When I snapped at her, Jae-min made an aggrieved face and hung her head.
Hey, you can look as wronged as you want — this is hard on me too.
"…said…"
"What?"
She seemed to have said something.
I waited for her to answer properly, and suddenly she shouted at the top of her lungs.
"…What am I supposed to do if it won't work?!"
"What won't work?"
"Fuck, what do you think?! I've been going at it nonstop and I haven't cum even once!"
"Huh?"
"This fucking body — when I rub it the pleasure keeps building and building, but I've never once felt an orgasm!"
What the hell was she talking about.
"From the first day I've been trying to masturbate, rubbing my clit and my tits, and I just can't get there — I'm losing my mind…"
"Wait, so…"
From that first night until now — three days.
"You've been masturbating all day for three days straight and you haven't cum even once?"
"…Fuck."
"……"
Jae-min clutched her hood and pulled it down, looking utterly defeated.
That impression I'd gotten looking into her eyes when she came in — a beast gone mad with lust. Apparently I hadn't been wrong.
"Anorgasmia?"
"…It's not that I have no sensitivity. Touching feels good — I just can't finish."
"So what do we do? Go to a hospital?"
"……"
After a moment of silence, Jae-min suddenly lifted her head and met my eyes.
Dark, murky pupils. Completely consumed by lust. With that look, she opened her mouth.
"…You help me."
"Huh?"
"I feel like if you help me, it'll work. Help me."
Has she lost it?
"If you're just willing to try anything, how about using a toy?"
"A vibrator would take two days to arrive even if I ordered one now. I don't want a dildo. I'm not giving my virginity to some piece of plastic."
Virginity, from a guy who used to be a guy…
"Weren't you the one going on about wanting an onahole, or to switch to a dildo, or whatever?"
"That was just me being bitter I'd never gotten to use one! You can have the onahole — just help me."
"You don't think I'm some kind of saint, do you? I know you used to be a guy, but if those tits are bouncing right in front of me I might not be able to hold back."
"You crazy bastard! …Th-then I'll just use that onahole to jerk you off instead! So help me!"
With that shout, she suddenly collapsed into my arms.
I could feel those two soft mounds of breast pressing against my stomach.
This is exactly why I said I might not be able to hold back…
"…It feels good when I keep touching, but I just can't finish and I'm going crazy… P-please, hurry, touch me…"
…Jae-min's condition was clearly far more serious than I'd thought.
"I'm going to touch you however I want. Don't regret it, and don't complain later."
"I know, just—! T-touch my pussy… I feel like if you touch my pussy it'll work…!"
Hearing that, I pulled her close with my left arm and reached my right hand between her legs.
She wasn't wearing panties.
My right hand easily found that fully hardened clitoris.
"Hik…♥"
Just the lightest brush and her whole body shuddered, hot fluid seeping from her hole.
The two hands clutching me tightened, and the soft pressure against me intensified to match.
Hot breath against my chest where she'd buried her face, and I could feel the moisture slowly soaking into the shirt against her mouth.
"……"
This girl was definitely a guy.
No — had been a guy.
But I could feel my own body getting more and more aroused in response to her reactions. It was a physiological response, sure — but calling it purely physiological felt wrong when my mind was clearly flooded with desire too.
I felt a flicker of identity confusion, but first things first.
How was I supposed to do this? Just rub?
I started in earnest, flicking my middle finger against her clitoris.
And the reaction was intense.
"…Nngooooh♥?!"
The body in my arms trembled violently.
For a moment she shook uncontrollably, like she'd been hit by an electric shock — then all the strength left her legs and she crumpled into me.
Sploosh—
The next instant, a stream of clear fluid ran down between her legs.
"Hey? Jammin?!"
Passed out?
No way — this girl who'd been on the verge of losing her mind after three days without a single orgasm had a pathetic orgasm-faint from one touch to the clit?
"Hey, you okay?"
I supported her and shook her a little.
But she just trembled finely with the aftershocks of climax and didn't respond.
"No, did she actually pass out…"
I scooped her up and laid her on my bed, where she sprawled out with her legs still spread and didn't get up.
Looking extremely happy.
"You said you'd jerk me off, you crazy bastard…"
That was the monumental sight of Jae-min's first female orgasm.