Bad Ending 001: Slave Walker Sonia 8
Cold synthetic voice echoed through the cylindrical interior, and several robotic arms emerged from the walls.
Most of the arms ended with sprayers filled with black liquid, but one arm with a gripper delicately moved, carefully gathering Sonia's dazzling blonde hair and lifting it upward.
It was a careful precaution to prevent the expensive suit's base liquid from staining her hair.
> SLAVE WALKER UNIT SUIT PROCESSING INITIATED
Again, the mechanical voice rang out. The moment Sonia heard the words "Slave Walker Waiting Posture 1", the information engraved in her mind reflexively made her body move.
Sonia naturally raised both arms overhead as if she had been trained for it for a long time. With her arms raised, her voluptuous breasts stood out even more, hanging upwards, and her smooth sides and armpits were completely exposed.
"Ah... Understood."
Before Sonia could finish her answer, the robot arms moved in unison, starting to spray the black liquid. 'Pssh, pssh...' Along with the sound of compressed air bursting out, fine black particles like mist poured down onto Sonia's naked body.
At first, the cold sensation touched her skin, but soon it transformed into a strange excitement.
Once, twice, three times... The spraying continued stubbornly. The fine particles stacked up, gradually dyeing Sonia's white skin black.
It was still patchy, but partially it already looked like she was wearing a perfect black bodysuit. A faint smell of rubber and chemicals mixed in the spraying liquid. Even that smell numbed Sonia's senses and excited her.
> SLAVE WALKER WAITING POSTURE 2
With a slender moan, Sonia took the next posture. This time, her legs were spread shoulder-width apart and her upper body was slightly bent.
The inner thighs and the lower part of her buttocks, still with some pinkish skin, were completely exposed. The robot arms precisely sprayed black paint onto those areas without missing.
The sound 'chik, chik-' regularly filled the enclosed space. Posture 2, 3... The machine covered every corner of Sonia's body with black latex according to the programmed sequence.
According to Peko's aesthetic taste, the work was done precisely only up to the neck. The face and hair were left as is to create an ambiguous scene of the 'unit' with no personality removed and the beautiful 'woman'.
> OPEN THE AREA FOR INSERTING THE CONTROL CORE FOR SLAVE WALKER UNIT CONTROL
Sonia hesitated for a moment, but that hesitation quickly turned into anticipation for pleasure.
Instead of shame, Sonia felt sweet humiliation and, following the instruction, spread her legs even wider and bent her waist forward. Her secret place was completely exposed in the cold air.
"N... Like this...? Hii... C-c-cold...♡"
The moment the cold metal touched her soft flesh, a cry escaped from Sonia's mouth. The guide device for inserting the control core unit was positioned at the correct spot.
It wasn't simple coldness. It was an electric pleasure that traveled along every nerve in her body and vibrated all the way to her brain along her spine.
How much time had passed? After all the spraying was finished, the black liquid wrapping Sonia's body slowly hardened and perfectly adhered to her skin. The initial stickiness disappeared, and a second skin of smooth and elastic texture was completed.

Surprisingly tough... not sticky at all...
Sonia looked down at the black bodysuit covering her body and sighed in admiration. The surface that reflected light faintly was like obsidian, clearly revealing every curve of her body.
Especially the erect nipple shape stood out clearly over the suit, clearly showing how excited Sonia was.
> SLAVE WALKER UNIT SPRAYING PROCESSING COMPLETED
With a 'wee-ing-' sound, the transparent cylinder that had confined Sonia rose back up. The robot arms also disappeared into the wall. Finally, the complete 'Slave Walker Sonia' appeared.
Just a few minutes ago, Sonia's body, which had only been shaved bare without any clothing, was now coated with artificial skin that extremely sensitively received electrical signals. It wasn't a simple bodysuit. It was a high-performance interface to immediately perform every master's command and a bondage that amplified pleasure.
Peko, arms crossed, looked at her new creation with satisfaction and smiled.
"Oh? Pretty? If you're done, sit there as is. Got it, 'Sonia'?"
Peko emphasized the name 'Sonia' deliberately, as if implying that it was the last time it would be called.
"Now, say goodbye to that name too. It's almost done. After this, I'll immediately go out again, so concentrate. Whether you know it or not, answer, Sonia."
"Uh... Uh... Yes, Master... I don't know what you're talking about... Understood..."
'Goodbye to the name...' Sonia mulled over the meaning of those words. It was confusing, but it was not allowed for a Slave Walker Unit to have its own will in response to the master's words. Sonia began to rationalize herself.
I wonder what Master is saying... Goodbye... Hmm... Is that the case? Soldiers were called by call signs... Will I be called that way from now on as Master’s dedicated Walker Unit... Really... Truly like a Slave Walker Unit... Ah... I am Slave Walker Sonia now... I almost forgot something important. I almost made a mistake as Master’s Slave Walker...
Looking at Sonia standing blankly, Peko frowned.
"What are you standing there like that for? Don't you know how busy it is right now? Sit down quickly. Sonia."
Sonia was startled by Peko's scolding and trembled. A sense of guilt like her heart sinking came as she thought she had disappointed her master.
The identity as a Slave Walker Unit was designed to feel the greatest joy when praised by the master and the worst pain when criticized.
"S-sorry... Sorry... Hic... Sorry!"
With tears welling up, Sonia apologized repeatedly. Without answering, Peko roughly grabbed Sonia's wrist and pulled her to sit on the metal chair nearby. It wasn't a simple chair. It was a 'Master Branding' device that permanently imprinted the master on the unit.
There was a reason for Peko's haste. Other pilots were also coming and going in the unit maintenance center. Peko felt clearly the greedy gazes of the others sticking to Sonia's sensual figure.
Especially the sister on the other side, smiling lewdly and peeking this way, was a target of caution. If they could, they would definitely try to steal this top-grade unit.
It would be easy for them to distract her by starting an argument while the other one 'accidentally' activated the branding device to steal the ownership. Peko had to finish all procedures before such a thing happened.
"Don't move. Sonia. It's an order."
"Yes, Master. Slave Walker Sonia will not move... Sorry... Sorry..."
Without hesitation, Peko firmly fixed Sonia's wrists and ankles with the leather belt attached to the chair.
On Sonia's forehead, she applied cooling film multiple times, and then drove a sharp insertion-type mental control crystal deeper. Finally, a visor with the letters [PK-02] flashing like lightning was placed over Sonia's eyes.
"Ah... Master... My head hurts... Strange..."
With her vision blocked and the light from the visor stimulating her brain directly, Sonia's consciousness began to blur.
"What you see, keep seeing it as is."
On the visor screen, the identification name [PK-01] briefly flashed by. Sonia instinctively realized that it meant Milli. Then PK-02 was...
(PK-02 is... me...)
"I am... PK-02... Master?"
Her head understood, but everything about the Slave Walker Unit was determined by the master's decision. The last remaining faint personality of Sonia threw a final question.
It was impossible for a unit whose personality was completely destroyed to think and ask questions on its own. That was the evidence that Sonia was a high-performance Slave Walker Unit.
(I am a Slave Walker Unit... I can't do anything without the master... The master is everything... The one who manages all of me...)
Peko pressed her lips close to Sonia's ear and whispered. Peko's hot breath tickled Sonia's earlobe.
"That's right~! From now on, your Slave Walker Unit identification name is PK-02. Remember it well. Got it? If you ever say any strange words like 'Sonia' again, I'll punish you. Instead... this is a reward. From now on, whenever you hear the word PK-02, I'll set it so that your mood gradually improves. From now on, you will live as PK-02."
"Yes... Master... I have forgotten the word 'Sonia'... I am not Sonia... I am Master’s Slave Walker Unit... PK-02... I am Peko-nim's dedicated Slave Walker Unit... PK-02... PK-02...♡"
As she repeated the word PK-02, a pleasant thrill spread throughout her body as per Peko's words. Pleasure substances were secreted in her brain, paralyzing all thoughts. The existence of 'Sonia' remained only as a faint memory remnant.
Watching that, the other pilots clicked their tongues in regret or let out deep sighs and left their seats. Peko, flaunting her victor’s ease, gently stroked the area near PK-02's right collarbone over the bodysuit.
"Although I can't do it now because I'm busy... After today's sortie is over, I'll personally engrave your new name here... Don't you look forward to it, PK-02?"
Peko's voice caressed Sonia's whole body through her ears. Peko stroked PK-02's head and added, 'Of course, it's a story about when you do well. You can do it, right?'
"G-g-gak... Thank you, Master! PK-02 will do her best to be able to receive Master's reward...♡"
...
Time passed. Now PK-02 had become Peko's most capable and loyal Slave Walker Unit. On the bodysuit that was almost transparently adhered to PK-02's skin, the identification name [PK-02] was clearly engraved in black ink near the right collarbone.
By chance, when the operation's performance was captured by a Sky City reporter's camera, PK-02 also began to act as a promotional model for the armored unit and Slave Walker Units. PK-02's perfectly controlled beauty captivated many, and as a result, there was a rumor that the number of voluntary Slave Walker Unit supporters had slightly increased.
Late at night after the operation ended, in the maintenance hangar. PK-02 was lying at Peko's feet, licking Peko's legs.
"Please... Touch the lewd Slave Walker Unit PK-02, Master...♡ For the lubricant needed for the control core rod that transmits Master's instructions... Haa... A little more... Touch me, Master...♡"
In the appearance of Peko's new Slave Walker Unit, PK-02, no longer could one find the D-class hero of Sky City.