Side Story: Devil Changer (Body Modification)
This chapter serves as a supplement to Episode 1 of Chapter 6, the Transformation Arc.
It also contains some violent content.
Please keep that in mind while reading. Thank you.
The beauty shop Devil Changer.
Yet very few people actually know the business by that name.
There is no signboard, the location is tucked away in a secluded, dimly lit alley, and they do absolutely no advertising.
Despite that, the shop is able to stay open thanks to its generous sponsors.
Cha Kang-hyuk is one of those sponsors.
In fact, he was the one who made the most crucial contribution to the shop’s founding.
Lee Bo-ram, the female owner of Devil Changer, had originally been a promising young dermatologist.
While most people associate dermatology with cosmetic procedures, Bo-ram had been far more interested in treatment.
She had left the hospital where she worked and opened her own clinic because she genuinely wanted to care for people who were truly in need of medical help—those who were injured or ill.
The hospital she had left had been heavily focused on cosmetic work due to profit concerns.
But the kinder a business owner is, the more likely they are to run into harsh realities.
That was exactly what happened to Bo-ram.
After accumulating heavy losses, her clinic faced closure after just two years.
It was then that Cha Kang-hyuk appeared.
Ironically, this world is structured so that the kinder a person is, the easier it is for them to be corrupted by evil.
Because they believe others would extend a helping hand without ulterior motives—just as they themselves would.
Bo-ram gladly accepted Kang-hyuk’s offer to clear her debts.
She sincerely believed his words that he could not stand by and watch the dream of such a good-hearted doctor crumble.
And he kept his promise.
Just as he had with the other victims.
Thanks to Kang-hyuk resolving her debts, Bo-ram was able to continue her business.
But she no longer had even the slightest interest in trivial medical care.
The childhood dream of becoming a doctor who saved lives—something she had nurtured while watching medical dramas—had been completely erased from her mind.
She had been persuaded.
Kang-hyuk had made her reconsider the direction of her practice.
He had helped her realize that her previous life held no real value.
And he had taught her how she should live from then on.
Funnily enough, as a cosmetic doctor, she had never truly understood what real beauty was.
She would never have realized it if that strong, wonderful man who had appeared like a comet had not shown her.
Beauty, Bo-ram came to believe, was the obscene corruption that bloomed as something radiant slowly blackened and decayed.
For example, like a sheltered young lady raised like a flower in a greenhouse, sold off in a political marriage, forced into love, and eventually stained by it until she became an obedient wife.
The true beauty, she decided, was the decadent sweetness that remained after the shining parts had been shattered into tiny pieces and scattered like sugar crystals.
The beauty shop Devil Changer was born from that very realization.
Following Kang-hyuk’s advice, Bo-ram decided to devote her life not to wasting time on insignificant medicine, but to defiling the purity of others.
Her first test subject had been herself.
Bo-ram had used her own body as a laboratory, testing the various drugs Kang-hyuk had procured for her.
Aphrodisiacs, lotions containing massive amounts of psychoactive substances, and all kinds of cosmetic products.
The result was that in just a few months, the once plain, pure, young, and beautiful female doctor had transformed into the princess of a brothel.
After repeatedly pickling her body in aphrodisiacs day after day, both her nipples and clitoris had become grotesquely enlarged and remained permanently erect.
Her pussy stayed wet twenty-four hours a day, making it impossible for her to wear underwear anymore. Every time fabric brushed against her skin, it felt like her clit was being stroked, sending waves of pleasure through her until she could no longer wear proper clothes.
Once her body had been ruined beyond the point where normal daily life was possible, Bo-ram realized it no longer held value as a test subject.
Around that time, Kang-hyuk gifted her two new assistants.
The two women were one year younger than him and had attended the same university. They followed him into the shop with innocent, unsuspecting faces.
Both were beautiful enough to be called stunning, with excellent figures. Despite their large breasts and fuckable asses, they carried no trace of the stench of semen—only a cloyingly sweet body wash scent that was almost offensive in how pleasant it was.
Both of them adored Kang-hyuk. Their eyes were filled with deep affection. They clung to him tightly, unwilling to let go.
The sight reminded her of her former self. Of the days when she too had been treated like his ‘lover.’ But Kang-hyuk had eventually grown tired of her and abandoned her. The few times he visited now were strictly business-related.
She felt jealous. She felt furious. At those two bitches who dared to fawn over her Kang-hyuk.
She could understand why Kang-hyuk had discarded her. She could accept it.
Kang-hyuk was like a noble prince. Or perhaps the crown prince of an empire of evil. Therefore, every atrocity he committed could be justified in his name. He was someone who was allowed to do such things.
But these two fucking bitches were different.
If it weren’t for you two, Kang-hyuk might have stayed by my side a little longer. If you hadn’t been slinking around him like cats in heat, rubbing up against him and acting cute.
Kind as always, Kang-hyuk gave her the perfect opportunity to vent the rage boiling inside her. He handed over the two presumptuous stray cats, telling her that since he was tired of them, she could use them however she liked from now on.
Aaaah♥ A gift♥ A gift♥ It was the first present she had received from Kang-hyuk since being abandoned. Filled with ecstasy, Bo-ram decided to give these two arrogant bitches a proper education.
First, she used a special tanning machine to turn their bodies a luscious bronze, then covered them in tattoos. The remaining empty spaces were filled with obscene phrases written in special ink.
This meant they could never set foot in a public bath or swimming pool again. Not that they would be able to anyway once she was done with them.
When the two woke from anesthesia and saw their transformed bodies, they screamed in horror. It was a sound that never failed to fill her heart with satisfaction.
But that was only the beginning.
She put them under anesthesia again and began the real body modification.
First came the mouth-pussy modification. She extracted all their teeth, then injected a special drug into their tongues to make them as sensitive as clits.
From now on, even chewing or drinking would be an ordeal. Of course, she had already done the same to herself. At the time, Kang-hyuk had found it quite novel and had been very pleased.
Next was the back-pussy modification. This process required actual surgery. The ultimate goal was to turn their rectums into something identical to a pussy.
While an anus had good tightness, it lacked the internal folds and pleasure spots of a vagina, so the person inserting would not feel much. This surgery was meant to fix that.
After the procedure, the back-pussy would become just as soft and textured inside as a real cunt. However, the constant open hole would cause severe issues with bowel movements.
That was why they would have to wear a back-pussy plug twenty-four hours a day, but that wasn’t her problem.
After slathering them with all sorts of drugs on top of that, the two were reborn as lewd, walking toilets who would gush pussy juice just from standing still.
As was usually the case right after the procedures, they showed sharp resistance. The two of them had cursed at her, demanding she return their bodies to normal.
Normally she would have ignored them since Kang-hyuk would handle it, but since these two would be working with her from now on, their personalities needed adjusting.
So she asked Kang-hyuk to conduct personality correction training on them. After they returned about a month later from their ‘lessons,’ both of them had become incredibly docile.
She later heard from Kang-hyuk that he had sent them to an acquaintance in Southeast Asia and made them sell their bodies. They had apparently spent their days getting their pussies fucked for eighteen hours straight, forced to take drugs, and generally had a very enjoyable time.
Perhaps because it had been so long since they had been back in Korea, their speech had become slurred. Or maybe it was because all their teeth had been pulled out. Either way, they looked much better than before. The way their bodies reeked of semen and cigarettes, the cigarette burns on their bellies, the bruises all over their skin, and even their half-lidded, trembling eyes were incredibly arousing. Judging by the dozens of injection marks on their arms—at least twenty by rough count—they seemed to be suffering from withdrawal symptoms.
Bo-ram welcomed the two much-improved women, washed them, and dressed them in new clothes. At first they feared and distrusted her, but they gradually opened their hearts.
The month of personality correction had given them something in common with Bo-ram ideologically: a lust for the obscene and filthy, and a jealous, corrupting desire that made them unable to tolerate anything pure.
And so, at last, two assistants worthy of the beauty shop Devil Changer were born.
Back in the present.
On the treatment table of Devil Changer lay a customer who had come after a long time.

Glossy red hair, enormous elastic breasts with no sag whatsoever, and soft pink areolas and nipples that retained their gentle color.
Her body carried the faint scent of flowers, and her tightly closed pussy looked so modest it would struggle to accept even one or two fingers.
She was clearly a woman who had lived a life completely untouched by any of the world’s filth.
That cleanliness. That innocence. That purity. That beauty. It ignited hatred in the hearts of the three women in the room.
Once, they had been like that too.
Once, they had lived lives ignorant of the ways of the world.
They had enjoyed the childish dream of purity.
That jealousy quickly twisted into wicked desire.
They wanted to defile her.
“First, what should we do about this skin? Just looking at something so clean makes me sick.”
Bo-ram said.
Her two assistants nodded in agreement.
Soon, one of them picked up her phone, typed something quickly, and showed it to her.
“That won’t do.”
Bo-ram drew the line.
“Kang-hyuk told us not to damage the body at all. He said he’ll be the one to ruin her himself. So unfortunately, we can only do ‘beauty treatments.’”
The two clicked their tongues in obvious disappointment.
“But even without destroying her, there are plenty of ways to fix her up.”
Bo-ram said as she brought over the tanning machine.
First, the skin. Then the dye job.
After giving her a thorough makeover, they moved on to the real work.
“Do you remember this? I applied it to your bodies too.”
Bo-ram said, holding up a container of chemicals.
Soon, sinister smiles spread across her assistants’ faces.
Inside was a special oil.
A mixture of powerful aphrodisiacs and perfume.
Once applied to the skin, its effects would last for at least a month.
It was a potent drug that could turn even the most solemn nun into a whore who thought only of cock the moment she saw a man.
“And this too.”
Next, Bo-ram pulled out a syringe.
Another familiar item.
It was the same drug she had used when she modified her assistants’ mouths into mouth-pussies.
It altered the taste buds so that semen would taste better than anything else in the world.
As a side effect, normal food would taste utterly disgusting.
“Shall we begin modifying this new onahole for Kang-hyuk?”
Bo-ram said with a chilling smile.
The two took the container from her and slathered their hands with the oil.
They were touching an ultra-powerful aphrodisiac with bare hands, yet their expressions remained completely calm.
After being used as test subjects and handling so many different drugs, something like this was hardly surprising.
Each taking one side—right and left—they began applying the aphrodisiac oil to the sleeping Ji-eun’s body.
“Hngh…♥”
Ji-eun frowned even with her eyes closed.
As the drug began to take effect, her once-modest pink nipples perked up stiffly.
Below, her clitoris had swollen dramatically, standing out far larger and harder than usual.
Seeing her chance, Bo-ram inserted the prepared piercings.
“Hngh?!”
Ji-eun squeezed her eyes shut and bucked her hips.
The reaction seemed less like pain and more like something else entirely.
Bo-ram slid her hand between Ji-eun’s legs, spread the wet pussy lips, and carefully applied the aphrodisiac oil around the entrance without touching her hymen.
“Hehe… Your first night after you wake up is going to be incredible♥ I’m so jealous.”
Bo-ram murmured as she stroked the face of the woman who looked like she was having a nightmare.
“I can’t wait to see how she reacts when she wakes up. Hehe♥”