Bonus: No obscene content whatsoever

Note
This is just a bonus and contains no obscene content.
Still, since this is a TS possession story, not including this part would’ve felt dishonest.


I was—without a doubt—facing the greatest crisis of my life.

Yesterday was chaotic in many ways, and I hadn’t really done much physically, so I just slept it off without even sweating. But today wouldn’t be so forgiving. I’d been out in the blazing heat all day, walking around and shopping like mad. In the evening, I even joined Kamijou for the bargain-bin battle royale. More importantly, my modern-day human instincts were screaming: “Two days in a row is a no-go.”

In other words—what I had to do now was…

“……………………!!!!”

—Take a bath.

And what I had to confront… was this body. This girl’s body—Reicia-chan’s body—that was far too developed for someone supposedly in her second year of middle school.


Prologue: Aftercare Is Everything — For_starters...

Bonus: No obscene content whatsoever


Taking a bath.

Motivated by that resolve, I headed to the washroom, which doubled as the changing room. But it was there that I realized—the battle had already begun before stepping into the bath.

Right in front of me stood a massive mirror.
To my left, a laundry basket.
Reicia-chan’s “knowledge” told me that if I placed my clothes in that basket, the staff would take care of the laundry later.

But... to do that, I had to take them off. These clothes that I’d changed into earlier—while distracted by everything going on, I’d been able to rely on “procedural memory” and slip them on without thinking.

…Now, you might be thinking: Then why not just zone out and rely on that same procedural memory to get undressed?
But try imagining this:

If someone told you, “Hey, just do that thing you always do—oh, but don’t think about it at all while doing it,” how would you respond?

Even if you tried to do it by muscle memory, your brain would inevitably focus on it. Not thinking about something while doing it? That’s impossible.

That’s exactly where I stood.

Still, I had to undress.
There’s no way—after wandering around in the summer heat all day—I could just not take a bath. As a girl, that’d be fatal.
Sure, someone with a scent fetish might rejoice, but unfortunately, I wasn’t that far gone. And even if I was, dragging Reicia-chan into it would be the act of a complete scumbag.

Slip...

I peeled off the summer sweater (I’d changed into Tokiwadai’s uniform before returning—if the dorm supervisor found out I’d been in casual clothes, I’d be in trouble).

The soft rustle of fabric made me feel like I was doing something terribly wrong, and my heart began pounding. But just as I tried to calm down, it ramped up again—for an entirely different reason.

…Lifting the white shirt, I clearly saw the curves.

I hadn’t noticed them under the sweater, but now, sweat had soaked through just enough to reveal the black bra underneath. Black. Of all things, it had to be black!

This morning, I’d changed automatically, barely aware of anything. But now? This was just too... mature.

In the mirror, Reicia-chan was staring wide-eyed and red-faced at her own chest. Ugh… What a shameful sight. But I mean, c’mon. The person inside is just some regular guy. Of course I’d look.

“…!”

But I couldn’t stop here. Until Reicia-chan’s own consciousness returned, I was the one responsible for taking care of this body. As its temporary caretaker, I had a duty.

Yes—this was for Reicia-chan’s sake too…!

Clinging to that logic, I slowly brought my hands to the buttons of the shirt...!!

Eventually, from the gap in the shirt, it revealed itself in full glory—

Black. Elegant. Mature.


Please stand by.

…You know how surgeons can slice into people without feeling like they’re hurting them?
This is completely unrelated, of course.


“Haaah… Haaah…!!”

I was completely drained.

As I stood there in just black bra and panties, I felt like I’d catch a cold if I didn’t hurry. But moving beyond this point would take… significant resolve.

Even in just underwear, this body packed a ridiculous punch.
In the mirror, Reicia-chan was already wide-eyed and breathing hard.
I apologize for how unsightly I look.

“Kh…”

Struggling, I reached behind me with both arms.
Thanks to Reicia-chan’s procedural memory, I still remembered how to undo the bra, even through all the tension.
Click. A small sound.
The pressure on my chest immediately eased.

…Is Reicia-chan’s bra getting too tight?

I slipped it off and dropped it into the laundry basket.

That meant I now had to directly face her bare chest—a suicidal move—but… I’d learned something.

—If you close your eyes, you can’t see anything naked!

What a revelation!
Even with my eyes shut, I could still rely on procedural memory to undress properly. As long as I didn’t open them, the muscle memory would take over and I’d be fine. Human bodies are amazing.

With that decision made, I quickly slipped off the panties and tossed them into the basket too. Success.
Eyes still shut, I groped around for the bathroom door, opened it, and stepped in.

Closing the door behind me, I felt around for the showerhead and turned the knob to start the water—

“C-cold!?!?”

Yep. Cold water.

I nearly opened my eyes from the shock but stopped myself just in time.
I twisted the shower away from my body. That was close…
My heart nearly jumped out of my chest. Cold water really hits you in this season.

After a short wait, the water warmed up, and I let it wash over my body.

“Ahhhhhh... That’s the stuff...”

I almost said it out loud, but restrained myself. Saying that with Reicia-chan’s body felt too inappropriate.

After rinsing off lightly, I moved to dip a foot into the bathtub—only to be blocked by the cover.

…Well, of course. I’d been heating the water, so naturally, it was covered.

Fumbling around to remove the bath cover with my eyes closed probably made me look like a pervert, but luckily, there was no one around to see.

...Come to think of it, there’s something called the “Taikū Kaisen Underline” or whatever, but… well, unless you’re someone like Kamijou-san, there’s no way they’d be watching a regular student like me. So I’d say there’s no real need to worry. Even if I did meet Kamijou-san today.

……………………I-It’s fine, right?

I mean, even if someone saw me right now, it’d just be endlessly humiliating for me—nothing actually dangerous... probably.

Setting aside that looming anxiety, I slid the cover off the tub, set it aside, and dipped my feet in. The warmth seeped deep into me. Cold baths in the summer? Absolute heresy. Summer is precisely when you need hot water. That’s the good stuff.

Before fully sinking into the water, I gathered up my long hair—down to my back—with a hair tie wrapped around my wrist, and tied it up. It was such a practiced motion that I didn’t even need to look.

Ahhhhhh~~~~I feel alive~~~~.

Man… things have gone way too smoothly so far. There’s practically nothing interesting happening. I feel bad for Aleister-san watching via Taikū Kaisen Underline—nothing but a boring bath scene of a beautiful girl. My apologies.

Splashing around in the bath, I basked in the bliss. Now that I noticed, there was a faintly elegant fragrance tickling my nose.

Probably bath salts or something. I didn’t prepare anything myself, but it’s Tokiwadai, so maybe it’s automated? Or maybe someone set it up for me while I was out? Honestly, both are totally plausible. What a ridiculous elite school.

No seriously, this is amazing.

In my past life, the only bath additives I ever used were maybe a handful of those cheap fizzy bath tablets from the drugstore. And this stuff? Clearly a whole different league. Price tag’s probably three digits off. Maybe even four.

Utter bliss... Honestly, I wouldn’t mind just living here forever...

A few minutes passed, my expression relaxing as I sank into heaven with my eyes closed.

...It’s starting to get a bit hot.

If I soak too long and get lightheaded, that’d be dumb. I should probably wash up and get out soon...

Thinking the exact opposite of earlier, I stood up from the bath.

...And now, a slight detour.

From cooking, I’d discovered that “procedural memory” from myself carried over too.

The cooking skills I’d picked up while living alone in my past life had transferred over just fine. And what’s more, they activated without conscious thought. In other words, my own procedural memory and Reicia-chan’s were both stored in the same brain—they weren’t overwriting each other.

…So this brings up one question.

What happens if Reicia-chan and I each have different motor habits for the same task?

For example—bathing.

My habit was to relax, close my eyes, and let out a slow fuuuuu sigh. That’s something etched into me physically—stored as procedural memory.

Reicia-chan, on the other hand, doesn’t do that. You could say she has a “habit of not having habits.”

Until now, we were dealing with things like “changing into girls’ clothes,” something I had zero prior experience with. But what happens when my own procedural memory does overlap with hers?

“……………………Ah.”

Answer:
Sometimes, I just move on reflex, based on my procedural memory.

In other words… I had this habit—whenever I get into a bath, I close my eyes and let out a deep sigh. It’s kind of an old-man move, so I consciously held back from doing it.

But afterward, as I started to relax, I stopped thinking about my actions. As a result, my habits kicked in on autopilot.

…Yeah. I accidentally opened my eyes out of routine—because that’s just how I normally move from a “closed eyes” state back to normal.

The bathroom I saw with my own eyes for the first time was… unexpectedly neat.

The entire space was tiled in warm tones, spotless and polished without a single trace of mold or grime. I hadn’t noticed before, but the bathwater was milky white, with a few petal-like pieces floating on the surface—kind of rose-scented.

And near the shower, for some godforsaken reason, was a mirror—coated to prevent fogging.

I made eye contact… with a naked girl inside that mirror.

She had the perfect “huh?” kind of dumbfounded expression on her face.

Hair tied back with a scrunchie, she had her hands on the edge of the tub, in the middle of getting out of the bath.

Her lower half was still underwater, so it wasn’t visible—but as for her upper body, especially those prominent breasts… they were fully exposed.

I saw the girl’s cheeks suddenly flush red, bright and burning.

Then, the eyes that had been staring at me slowly drifted downward… to her own chest—


—The footage is currently unstable. Please stand by.


…Man, bathing was a real boss fight.

After accidentally staring at myself in the mirror, I was nearly killed by the sheer embarrassment and guilt—but somehow, I pulled myself together and managed to wash my entire body.

Yes, it was… intense. Even while washing, there were—let’s just say—sensitive areas that made things complicated. But thanks to procedural memory, I never ran into a “wait, how do I wash this part?” situation. In the end, I completed the mission… more or less successfully.

As a result… I think I’ve grown numb to it.

I’ve already experienced a lifetime’s worth of shock, shame, and regret. At this point, I think I’m good. I’ve obtained a strength that won’t lose to anyone.

Wearing the ordinary pajamas I bought today, having mostly finished stemming the bleeding, I can now say:

…But still, I feel like I’ve lost something important.

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