Sonyaroid
"Haa… haa… hnn…♡"
In the absolute silence that settled after Luce's departure, only Sonia's ragged, feverish breathing stirred the air of the room. Even the dust motes that had drifted free during the cleaning had long since settled. Within that stillness, the drumbeat of Sonia's heart rang out with unusual force and clarity.
Just below her navel, a digital barcode hologram shimmered across the sleek latex surface of her skin, casting a faint green glow into the darkness. Why a payment identification code linked to her personal credit card should materialize over so intimate and obscene a place remained a mystery whose true purpose she still could not fathom.
One fact, however, was beyond dispute. The bodysuit's daring V-cut — which only barely covered her pubic bone and sex — was playing a decisive role in soaking the fabric ever wetter with the sticky fluids seeping from Sonia's filthy fantasies.
A radical design that left her chest completely bare, without so much as a scrap of fabric. A costume that exposed, in place of an ordinary soft navel, the cold hard metal of a neural connection plug socket. To have cleaned her entire room in that state — already thoroughly aroused, grinding her own juices into the bodysuit…
Now that Luce was gone, Sonia stood before the full-length mirror and studied her reflection. Faint traces of dampness that had dried left shameful stains across the pure white latex.
"…Wearing a bodysuit like this straight against bare skin doesn't make me a… pervert… does it…? It's common knowledge that you don't wear underwear under a bodysuit. Putting on something this tight over a bra would be… a crime…"
Sonia's voice trembled faintly as she muttered the desperate excuses to herself.
The cleaning had taken a considerable amount of time, and throughout it Luce had lounged comfortably on the sofa, staring at her communication terminal. Exhausted, she had begun nodding off before Sonia could even offer her something to eat. Sonia had carefully scooped up the young adventurer, carried her to her nest in the neighboring building, laid her gently in bed, and come back.
In the end, what Luce had wanted was extremely simple. With her party members away, she wanted to join a pickup party — but going alone was frightening, so she had begged Sonia to be her companion. The gift she had brought both as persuasion and as an excuse to spend time together was a peculiar folk remedy popular among porters: a method of maximizing self-suggestion as a cheap substitute for expensive painkillers. Luce had used that technique to manufacture a "Sonyaroid" for the purpose of cleaning Sonia's filthy apartment.
Every step of the process had ultimately originated from the deepest recesses of Sonia's own mind. Everything the Sonyaroid knew, everything it could perform, had already been latent within Sonia's heart…
Thinking of it that way, the fact that she herself had plastered every kind of lewd flesh onto the setting Luce had casually tossed out — The Sonyaroid is a robot made by remodeling Sky City's hero Sonia! — was entirely her own doing. Among the many personalities inside Sonia, it was the most depraved and masochistic one — the other Sonia who hungered for modification and humiliation — that had slyly grafted those details on. The result had simply delivered the subject herself the most exquisite satisfaction imaginable.
In the full-length mirror, the damp stains on the lower half of the white bodysuit had already faded to near invisibility. This was no cheap cosplay costume. As high-performance combat armor issued by the Association, the cutting-edge hero bodysuit had absorbed Sonia's fluids in an instant, evaporated them, and restored the soft, smooth texture of glossy latex to perfect condition.
"…If I'd known it would be like this… maybe I should have chosen black… Black wouldn't show the stains…♡"
Luce was safely home. No one would come calling at this hour. Living on the first floor, Sonia locked the veranda door firmly and drew the thick blackout curtains with meticulous care, just in case.
"…"
She glanced left, then right — scanning her surroundings even though she was certain no one was there. That long-standing habit of this timid hero was always the clearest evidence that she was about to do something that pricked her conscience or filled her with shame.
"…Just a little… only a tiny bit…♡"
Slowly, Sonia's fingers drifted downward — toward that part of the bodysuit that had been wet and was now dry again, yet somehow still seemed to carry the ghost of a stain.
"Sonyaroid… Sonyaroid, of all things… something like that…♡"
Sonia hesitated, looking down at her own body. From this overhead angle, the lush valley of her unprotected upper chest filled her entire field of view. The spots where the spider's legs had pierced her had healed without a single scar, thanks to a hero's resilient physique.
When she slid her fingers upward and touched her navel, she felt not the familiar soft give of flesh but something alien — hard and cold. A cybernetic implant. The navel-type neural plug port.
If she had possessed a dedicated connection cable, she might have been surfing the web right now, moving a mouse cursor with her own neural signals. As it was, Sonia was nothing more than a filthy pervert pushing her fingers into her own navel.
"Ehek…♡ Ah?! Nngh…?! Nn…! Hek?!"
She shoved a finger sheathed in smooth latex deep into the modified navel — into the plug port. Crack. Crack-crack! Detecting the intrusion of a foreign object that was not a proper plug, the implant discharged a powerful neural-error pulse as a defensive mechanism.
Sonia was repeating this dangerous act for the sake of a pleasure so intense it bordered on pain.
Crack… crack-crack…!
A violent electrical signal shot up her spine and straight into her brain. Sonia's green irises flickered blue like a machine detecting an anomaly — bright green to yellow, then back to their original color. Her pupils shifted ceaselessly in time with the waves of ecstasy.
"…Hngoooooh…? Nn… nhaah…?!"
The deeper and harder she drove her finger, the more brilliantly her eyes flared. The gentle Sonia who had kindly laid a sleeping Luce in her own bed and even toasted bread for her to eat in the morning was gone. All that remained here was a filthy pervert gouging out her own navel plug port with her fingers, drool dripping down to wet the valley of her breasts.
"Munch munch…"
The next morning, as fresh sunlight poured over Sky City, a short-haired teal-haired girl who had been sleeping like the dead — leaving faint drool marks on the mattress — slowly opened her eyes to the smell of crisply toasted bread. Luce felt strangely refreshed. Birdsong outside the window announced a peaceful morning.
"Munch munch… gulp gulp… pahyaah~"
As a D-class adventurer temporarily separated from her party members for various reasons, Luce had no fixed schedule. No different from the D-class freeloader hero who lived two doors down, she leisurely enjoyed her breakfast. It was obvious who had prepared it, but on the table sat crispy toast and a glass of fresh milk just pulled from the refrigerator.

(This month… at this rate, I might come up a little short…)
Thanks to Sonia's advice, her rent was waived under Sky City's adventurer support policy — but water, electricity, and the rest of the bills still added up. Luce's wallet, thinned by every investment she had made to grow stronger, was far from flush. Running the numbers in her head, she concluded that if she kept lounging around like Sonia, she would have to give up even the small happiness of hunting down good restaurants every day.
"This is a problem…"
At this rate, until her party members returned, she would be surviving on convenience-store lunch boxes managed by Humanoids permanently sold to the corporate headquarters. Of course there were low-level dungeons she could clear alone, but even a small chance of something going wrong was too much, the experience was meager, and she had no luck with good items from treasure chests. More than anything, what tormented Luce was the restless itch of an adventurer's burning passion — the hunger to enter a dungeon.
"Munch munch… not bad…"
Chewing her toast as she surveyed her room, Luce's eyes landed on the dust piled in the corners. She remembered Sonia's apartment from yesterday — spotless, not a speck of dust, all thanks to the Sonyaroid. The Sonyaroid…
The Sonyaroid is a cleaning robot that Miss Luce made by remodeling Sonia!
The Sonyaroid is a robot that Miss Luce made!
That Miss Luce made!
The cheerful voice of the Sonyaroid rang vividly through Luce's mind. As the teal-haired adventurer chewed her toast, a brilliant idea took shape.
(…The one who made the Sonyaroid was… Miss Luce… and that Luce is me… so it's fine if I use her a little too… right?)