Slave Walker
“…Sonia. Did you put on the maintenance sticker? You went quiet all of a sudden, so I figured I’d ask.”
The tremors that had been running through Sonia’s body only moments before no longer carried through the Walker’s outer armor. Peko frowned, puzzled, and called in.
“Yes, Miss Peko… I just… stuck the sticker on my forehead.”
“Right… Looks like it’s working even better than I expected. How do you feel? Itchy at all?”
“…No. I’m fine, Miss Peko.”
Exactly the obedient answer Peko had hoped for. The moment she heard it, a satisfied smile curved her lips.
Things were going far more smoothly than planned — and they were only going to get smoother.
If Sonia had started questioning every step of the procedure, answering her while simultaneously piloting the Slave Walker and shooting down the drones would have been nearly impossible.
“Nn… mmh… My body suddenly feels… so refreshed… It can’t just be because I took all my clothes off…”
It wasn’t because she had stripped every last scrap of clothing. It was simply the cool sticker pressed flat against her forehead, chilling her brain until everything felt crisp and clear. That was what Sonia decided to believe.
Slowly, the robotic arms gripping her limbs tightened their hold, locking her body even more firmly in place. The thought of resisting no longer even crossed her mind.
If anything, Sonia was beginning to dimly realize that her heart was pounding harder than before — precisely because her entire body had been restrained against her will.
Wh… why… is that… Why is my chest… racing like this…
Perhaps it was the first faint sprout of the lewd, self-destructive masochistic desire that had always lain dormant somewhere deep inside her.
Sonia simply listened to the cold mechanical voice echoing through the interior of the Slave Walker.
> Slave Walker Unit: mounting visual assistance module.
> Do not move under any circumstances.
“Yeees… I won’t move… Ah, right. This is a recorded voice, isn’t it… Ahaha…”
Like a drowsy afternoon when sleep pressed heavy on the eyelids, Sonia’s mind grew steadily duller. Beyond mechanically answering Peko’s questions, her brain refused any more complicated thought.
> Installing Slave visual assistance module.
> Open your eyes as wide as possible. Do not close them under any circumstances.
“Yeees…”
Under normal circumstances she would have complained. Instead, thanks to the sticker on her forehead, Sonia behaved like a perfectly obedient slave, rounding her beautiful golden eyes wide open exactly as the synthetic electronic voice commanded.
> Mounting contact lenses.
One robotic arm tore open a small sterile package and lifted out a thin lens floating in liquid. It was a contact lens of an artificial yellow far more intense than Sonia’s natural gold — a color that shone brilliantly, yet held no life at all.
Pik…! Patit… Psshhh…
Another arm roughly seized her blonde hair — hair that fell all the way to her waist — and yanked her head back.
Pressing hard against the control sticker on her forehead, mechanical fingers forced one of her eyelids wide. Without the slightest hesitation, it jammed the yellow contact lens straight down onto her golden iris.
“Uh… aah…?”
Pik…! Patit…
The lens seated perfectly against the surface of her eye with a soft pik, followed by the faint hiss of trapped air escaping.
The arm immediately moved to the other eye and repeated the same merciless process.
“Uh…? Uh…?”
When the robotic arms finally withdrew as if their task were complete, Sonia instinctively tried to blink. She couldn’t. Her eyelids refused to move, as though they had been paralyzed.
For a Slave Walker unit that had to constantly process external visual data, blinking was a fatal vulnerability — a split-second gap. Inserting specialized contact lenses that forced both eyes to remain open at all times was a natural and essential part of the system.
“I… I can’t see, Miss Peko! My eyes… my eyes…!”
Even with the powerful calming effect of the sticker on her forehead, the total loss of vision summoned a primal terror.
“Calm down, Sonia. You’re fine. I’m right here beside you, so don’t worry about a thing.”
“I… I can’t close my eyes… I can’t blink… I-I’m still normal, right…? And… I can’t see anything, Miss Peko! Hiiik…!”
“I told you to calm down, Sonia. I already explained that everything’s fine, didn’t I? You’re not completely blind. The whole world just looks yellow, right?”
“N-now that you mention it… Yes! Everything… it’s all yellow…”
“Just wait a second… There. How about now, Sonia?”
A soft click — the sound of Peko pressing a button on the control console.
> Camera video feed: enabled.
At the same instant the mechanical voice spoke, the yellow curtain filling Sonia’s vision peeled away, and the interior of the Walker came back into view.
It was different from before. Under the dim red emergency lamps, her vision had become so razor-sharp she could make out even the tiniest motes of dust drifting through the cabin.
“Hmm… We’ll leave it at this for now. Better to get moving quickly. You’re ready, right, Sonia?”
“Ah… I think… so, Miss Peko…”
The words “for now” told her there were more procedures still waiting, but Sonia no longer had the energy to ask questions.
Another click of a button, and the internal speakers announced the final step.
> Slave Unit: initiating neural link.
“A link? Uwah…?”
> Adjusting posture. Release all tension from your body.
“Eh… Yeees…”
The robotic arms began to move again. They locked onto the metal rings clamped around her neck and limbs, then — with irresistible force, yet with surprising gentleness — started correcting her posture.
Drawn by the slowly tightening rings, Sonia’s body naturally folded forward.
Her elbows and knees settled onto the soft shock-absorbing pads on the floor with a muted thup. Exactly like the beast she had first imagined when she saw this weapon. On all fours, pressed to the floor — a perfect posture of submission.
“Th-this is a really weird position… It’s the exact same pose the Walker makes when it’s standing… Does that mean it moves like this…?”
The sole cockpit of a four-legged war machine woven from cold metal and cable-veins. Trapped inside it, Sonia lay prone in a posture identical to that of the massive steel beast itself.
The robotic arms gripping her delicate wrists and ankles had already crushed every last shred of her will to resist.
Her naturally developed, voluptuous E-cup breasts yielded to gravity, hanging softly downward.
Thanks to the elasticity of her skin they didn’t sag unpleasantly. If anything, the two full mounds, rising with their sheer weight alone, seemed to assert the presence of a Sky City D-class hero with overwhelming force.
No matter what excuses she might make, the truth was simple: Sonia was naked, restrained, and down on all fours like an animal.
She still hadn’t clearly registered the subtle changes taking place in her own body. Beneath the faintly flickering red emergency lights, her nipples had already stiffened hard, as if drinking in the surrounding air. Between her slightly parted lips, rough, hot breaths escaped in short gasps.
Ordinarily the system would have proceeded to the next step — applying lubricant to ensure smooth insertion of the Slave Walker control unit.
The biometric sensors installed inside the Walker had already detected that Sonia’s body was more than wet enough without any additional preparation.
Aroused by this bizarre, perverse situation, the D-class hero’s body had long since rendered the system’s mechanical caresses unnecessary.
A single drop. It hadn’t fallen to the floor yet, but a clear, slick trail of arousal was slowly sliding down the inside of Sonia’s thigh. Only one process remained. Once every foreign substance was perfectly removed and the final component installed, this massive four-legged war machine would be ready to move again.
> Slave Walker Unit: initiating sanitation protocol.
Tssss…! Tssss…! This time a brush-like device tipped with a soft rubber nozzle appeared. As if trying to blow dust out of a computer’s internals, it began blasting cold air across the skin of Sonia’s naked, restrained body.
“Ah… cold… Uh… uuh?”
Sonia vaguely assumed the cold wind from the nozzle was simply clearing dust and debris from her skin.
She was half right. The system’s definition of “foreign matter,” however, differed slightly from her imagination.
This was a procedure to remove every organic substance that might interfere with the perfect performance of a Slave Walker unit.
Above all, when the control unit was inserted and made direct contact with the most sensitive parts of the body, eliminating every obstacle that could disrupt precise signal transmission took absolute priority.
The foreign matter the system had marked for removal: every kind of hair that naturally grew on human skin.
From the invisible peach fuzz to the finest body hair rooted deep in the pores — the special cold spray jetting from the robotic arm dissolved every last hair on Sonia’s skin without a trace.
Using the metal choker locked tight around her neck as the boundary, every part of her body below it — without a single exception — was swept by the nozzle as the depilation proceeded.
What it sprayed was not some gloss coating for a Humanoid or cyborg full-body chassis. It was simply an extremely efficient, fast-acting depilatory agent.
A light touch of cold liquid kissed her skin and vanished almost at once; the strong wind from the nozzle then scattered every last melted hair away.
“Hh… hnn…♡ Nngh…”
(It’s strange… it’s cold, but… the way it feels… is weird…)
Every hair on her body — even the final barrier that had protected her skin — was gone, yet Sonia felt no chill. If anything, the opposite sensation swallowed her whole.
She knew with her mind that something was wrong, but from deep in her belly, from the center of her chest, an unidentifiable heat was rising.