Authors notes: As always, I don't own the original characters of Yu Yu Hakusho, but I do however own the characters that I came up with. And really, you don't want to steal any ideas that come from my warped brain, really you don't. They will turn on you , I promise, the little bastards.

So Anways, what Im trying to say is don't sue me.

As always I thank those who reviewed, infact there is a formal thank you at the bottom of this.

As for those of you who didn't review….get off your lazy ass!

Just kidding, ^_-

Ps, sorry about the tags, I know their annoying.

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The Doctor was unlike anything that Keiko had been expecting.

Since Hokin had told her that the Doctor had wanted to see her, she had envisioned an ugly little imp like Dr. Itchigaki from the dark tournament to walk in with an evil instrument in hand.

So she was completely at odds with what had actually come through that door.

The Doctor was in his late forties, had a shy smile with dimples, warm brown eyes and reminded her of someone's nice guy uncle.

"Excuse me miss, My name is Doctor Kamiya and I am going to administer a check up on you to make sure that you are suffering no ailments." He said kindly.

Dumbfounded, Keiko didn't resist or utter a word as the Doctor checked her pulse and then her blood pressure.

Ailments? What would he call being strapped almost naked to a table against her will? Even though this guy may have seemed harmless, if he was willing to go along with something like this without flinching than Keiko knew that she had to be on her guard around him as well.

"I know this may seem a bit childish for someone your age, but I would like to check your throat, so please open your mouth and say aaaaghhh."

Keiko dutifully opened her mouth but did not say aahhhhh, and the Doctor pushed one of those Popsicle sticks onto her tongue as he checked her throat.

This is just too weird, Keiko mused as the doctor removed the stick from her mouth and turned to a small table that he had wheeled into the room with him.

Upon turning however, the Doctor caught sight of the blood that had dried around her ankles. Pausing, he stared at them for a moment before turning back to his table to grab something.

Keiko felt her heart surge with hope. Maybe the Doctor wasn't apart of this like she had originally thought; maybe he could help her!

Turning back to her injured ankles to administer some disinfectant to the wounds, Keiko took her opportunity to speak.

"Doctor Kamiya?" Keiko asked quietly, almost afraid to speak.

The Doctor remained quiet, focusing on cleaning the cuts on her right ankle, and Keiko involuntarily hiss at particularly nasty sting she felt due to the chemicals that she was using.

Immediately the Doctor looked up at her and his eyes held something that Keiko had a hard time placing.

That look…. It was almost like he felt like chiding her for what she had done to herself…. Like it was her fault that she was in pain.

Only further proving her theory, the Doctor again spoke as he put away the cloths he had used to clean her cuts.

"You really shouldn't injure yourself like that. It causes unnecessary pain that could have otherwise remained uninflected. So do not continue to do things that could damage your otherwise perfectly healthy body."

"And what they would do to me, the people that would supposedly buy me, that would be ok?" Keiko asked, shocked at Doctors response.

The Doctor clucked in admonishment, his back still turned to her.

"That is something that you have no control over and therefor cannot be helped. However, what you do to yourself can be. So do yourself a favor and spare yourself any unnecessary pain."

Keiko swallowed the bitterness that rose in her throat at the Doctors words. He had just basically told her to just accept what was going to happen to her and to not make it any harder.

Any harder! Keiko would love to see him still hold that view if he were the one strapped to the table.

Even so, why was he doing this?

"Doctor Kamiya," Keiko asked firmly, "Why are you helping people like this? What do you get out of it?"

"That is an interesting question…."

The way he answered sent shivers of apprehension down Keiko's spine and as he slowly turned to face her, she could tell that something about him had changed.

In his hand he held an empty syringe and was placing a new disinfected needle tip into it.

But he was looking at it like it was a toy; his eyes were now alight with an almost childlike pleasure and then he turned that gaze to Keiko,

As he spoke his voice was still warm, still a nice guy kind of voice, but his eyes told a different story with the manic excitement held in them.

"You see young lady, working for such people allows me to practice my greatest passion, which others who have been blind to progress have abhorred."

Closing the distance between himself and the table, the Doctor lost his smile and frowned at her.

"Now I need to draw a sample of your blood," he began and instantly Keiko tried to jerk away from his touch, causing him to frown deeper in exasperation. " Now it is not a large sample, but I am going to take it from the main artery in your neck, so if you struggle than you could run the risk of me rupturing your vein and causing you to bleed to death."

This statement caused Keiko to go achingly still and she watched in horrified fascination as he brought the syringe to her neck.

"Now your going to feel a slight sting, but don't worry it will all be over soon." He soothed.

Keiko clenched her eyes shut as the needle pinched into her vein and the blood began to flow. She hated needles, but didn't dare move for fear of the Doctors threat, but she couldn't help but let out a small whimper in fear. Yusuke had always laughed at her when she would get nervous about going to the doctors…. She wondered if he would laugh at her now.

A moment later Keiko opened her eyes when she felt the needle being removed and firmly replaced by soft cotton gauze that the doctor held securely with medical tape.

"There now, it wasn't all that bad was it?" The Doctor asked smiling.

Keiko could feel herself becoming light headed and she wondered just how much a small sample really was. Cautiously she looked up at the Doctor and even though he was partially turned from her she could still see part of his face and what he was doing.

The Doctor was mixing what appeared to be her blood in a large flask of clear liquid, and his expression was one of fierce concentration.

This made Keiko extremely uneasy as she realized that he was waiting for something, and she found herself also staring at the flask, hoping that whatever he was expecting didn't happen.

After a minute or two of strained silence Keiko watched the Doctors shoulders sag and utter disappointment settle into his face.

"Another failure." He murmured tiredly.

Keiko closed her eyes and inwardly heaved a huge sigh of relief. She had never thought that she would be so happy in her whole life to be called a failure!

Feeling happy that at least one thing had gone in her favor, Keiko decided to rub it in his face.

"Its what you deserve you know. Working with monsters like this, helping them make slaves out of people, it serves you right that whatever sick plan your working on doesn't work!"

Feeling a little satisfied, Keiko enjoyed the silence that followed. I'm was going to make it out of this, she resolved. I'm going to-

"kukukukukukukuku"

Wha-what was…!

The Doctor was laughing.

Alarmed, Keiko opened her eyes to see what had caused this change in him and what she found made her heart stop cold.

The flask that had once been clear had now turned a shade of almost electric purple. Remnants of her blood continued to swirl slowly inside, but as Keiko watched the blood itself dissolved into the liquid and also turned purple.

Keiko knew that this was really, really bad news.

The Doctor started to laugh even harder and Keiko felt an overwhelming urge to scream in horror.

Because he was now looking at her like he had his syringe, his eyes burning with insanity and triumph. Keiko was his new favorite toy and the Doctor was finally going to be able to play.

Suddenly Keiko realized that she would have been safer with Hokin. The slave trader would have molested her; maybe even raped her….

But this man, she knew, was going to do much worse.

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Hiei stopped silently in a tree, the ranch rustling slightly under his weight. A second later two other forms stopped a little distance away on both sides of him.

How long before we reach the compound sir?

The message had been sent telepathically and Hiei turned his head in the direction of the one who spoke.

Two hours. Move silently through the compound and mask your ki. If there are any demons with the humans I don't want to alert them to our presence. Our objective is to capture the leader Hokin and Dispatch any demons you find. Koenma has requested that we leave all humans alive. Pity, it would mean less mindless filth in the world.

What about the human captives sir? The other demon asked.

Hiei smirked.

I suppose if you find any than you can toss them into a closet or something until this is finished. I don't really care.

And with that Hiei began dashing through the forest once more, is blurred figure blending in with the night.

Soon Riosuke, soon…

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The Doctor's whole demeanor had changed. The false warmth and shyness that she had seen had been replaced by insane glee.

Currently he finished filling another syringe with that clear liquid again, and from what Keiko could see it was a rather large dose. Then he set it down and pulled out a cell-phone from his lab coat and proceeded to call someone.

"Hokin, we have a match. Inform Riosuke that she will be ready to see within two hours."

Riosuke, is that who they were going to sell her to? That fast?! How am I going to escape in one hour? What did he meant the found a match and what exactly is this Freak Job going to do to me?

Keiko felt the urge to break down, but she resisted. She had to be strong if she wanted to survive. It would probably only make things worse for her if she cried.

But what she wouldn't give to see Yusuke and his friends come through that door and kick everyone's ass.

Just then the door did open, but it wasn't Yusuke who walked though.

It was Hokin.

"Well, Well, Well, aren't you a lucky girl." He said smoothly as he moved to stand next to the Doctor.

Keiko felt her anger returning and drew upon that as she silently glared at him.

"No really, you should be happy." He promised. "Most of the girls that I sell go to demons who can't tell between a piece of ass and piece of food. But you're fortunate, because thanks to your blood, you're going to be sold to Riosuke."

Hokin moved to Keiko's side and leaned down to whisper in her ear.

"I guarantee that Riosuke knows exactly what category you fall in. You're going to have so much fun."

Kieko felt the blood leave her face as she digested his words.

Demons. She was going to be sold to a demon as a sex slave.

Suddenly Hokin straightened himself and with an evil grin pushed her head forcefully to one side. Keiko cried out at the rough treatment to her poor neck. She couldn't see anything since Hokin and the Doctor were both on the other side of her, and that suddenly sent a new surge of fear through her.

"What are you doing? Let go of me!" she cried.

The Doctors voice, a little above her, is what answered.

"You have very special blood. Because of a recessive gene that has been carried through your ancestry, I am finally able to complete my experiment, and my greatest vision."

"What do you mean, recessive gene?"

"I mean, my dear girl, that there is demon blood somewhere in your ancestry. A very specific kind of demon blood, but too old and dormant to manifest itself into demonic traits. So essentially, even though you carry this recessive trait, you are human through and through. But I am about to change that.

You see my passion has been to create a specific type of demon out of DNA and Gene therapy . Through years of toil I have been able to create a process that is almost instantaneous, but I also found that only humans carrying that specific gene can be altered."

Here the Doctor sighed before continuing. "However, I was quite disappointed to find that the amount of humans who possess this trait is virtually nonexistent, and it seemed as though my work would go unrealized."

"Then Riosuke contacted the good Doctor and myself, offering to become a sponsor to us both if I were able to find a specific girl for the Doctor to use." Hokin added.

"I was kind of nervous for a bit, working with a demon as powerful as him. I mean, the guy can burn you to a crisp just by looking at you! But he's supplied me with some really good female demon submissive's that have sold for top dollar to my human clients and he is gonna pay a lot for you. I knew that you were going to make me a lot of money the first time I laid eyes on you." Hokin purred as he stroked her jawline with the thumb that held her head in place.

"Oh, but you probably had no idea that Demons even exist! That must come as quite a shock, knowing that your going to be sold the boogey-man and believe me honey, they are every bit as scary as you think they are."

"You have know idea." Keiko said softly.

"What was that?" Hokin asked, confused.

"I said that you have know idea how evil those Demons are. I do. I also know that Riosuke will kill you when he realizes what an awful pick you brought him. Because I promise that I won't do anything he wants. I would rather die first." She stated boldly through her trembling.

Hokin chuckled, "On the contrary sweetheart, Riosuke likes it when they struggle. He likes to break his girls, I know because I have supplied him with a few temporaries while we were looking for someone like you. They never lasted long, and what he did to them…damn! He's going to enjoy breaking you in and you will be amazed at how much you'll be able to take without dying after the Doctor is finished with you."

"If you turn me into a Demon, than theoretically I could develop powers like one, and use them to destroy you!" Kieko threatened.

"In a few days, after your first inoculation, I would inject you with another serum, that would suppress any Demon powers that may arise. You would essentially be as helpless as you are now, just no longer human and graced with a long life-span and an incredible endurance to pain." The Doctor informed calmly.

"I hope that King Enma of the spirit world has both of your souls tortured in Purgatory for all eternity you sick bastards." Keiko said hotly a she started to struggle. She may not have been able to hardly move, but Keiko was not about to let them have an easy time of it.

"Pray to any god you like, it won't do you any good." Hokin sneered as he forcefully held her head in place.

"Hold still and this will hurt less." The Doctor instructed her coolly.

"FUCK Y_"

Keiko was unable to finish as a needle was suddenly plunged into her throat and she gasped as she felt something being forcefully injected into her blood stream. It felt thick, like it was too much for her vein to hold, and Keiko couldn't help but whimper softly.

"There we go, know just relax and don't fight it." The Doctor said as he slowly pulled out the needle.

Keiko felt the hand holding her neck in place release its hold.

"What now?" Hokin asked the Doctor,

"Now we wait a moment." He answered.

Keiko blinked as the room went into hyper-focus. She could see everything in perfect detail as if she were looking through a high powered microscope. Turning her head quickly to the other side to escape the picture, she immediately felt a rush of nausea slam through her. Groaning, Keiko clenched her eyes shut and coughed as she struggled not to gag.

"What have you done to me?" She asked groggily.

And then she felt it.

The first prickling of heat started in her chest and slowly moved out ward with each beat of her heart. It grew stronger, and as the heat increased it soon became uncomfortable and then painful. Soon her entire body felt like it was engulfed in flames from the inside, and Keiko began to writhe on the table in agony.

She couldn't take it…it was too hot…make it stop…Yusuke…YUSUKE!!!!! She tried to work her throat to form his name but no sound would come out. The heat and pain continued to increase as it pulsed through every part of her body and Keiko screamed inside of her head as every part of her felt like it was being stabbed with a heated knife.

Keiko felt her body arch in the pain, but she wasn't able to realize that her body had bent so far that it had broken the two straps across her midsection. All she could sense was the heated pain and the sound of her own unnaturally rapid heartbeat in her ears.

"Hokin hold her down!!" The Doctor cried as he struggled to hold her spasming body.

"Shit!" Hokin swore as he forcefully used all of his weight to force the girl back onto the table. Her face was contorted into a wordless scream and he was sure that if she could have found her voice it would have made his ears ring for days.

Suddenly Keiko stopped bucking and she sank onto the medical table, letting the darkness consume her.

Hokin let out a breath as he sank against the table, surprised at how much strength it had taken just to hold her down.

"Shit Doc, It looked to me like that transformation almost killed her! Do you realize what would have happened it she died after I had told Riosuke that we had found a girl for him?!"

"Yes," the Doctor breathed, panting from his exertion to hold Keiko down. " He would have killed us. But she is not dead, I assure you."

Turning back to his table, the doctor withdrew another sterile syringe and proceeded to take another sample of Keiko's blood from her right arm. Placing a small culture of the blood onto a clear disk in the high powered microscope that he had brought with him, the Doctor began to study it closely.

"WELL?" Hokin grunted impatiently.

"Well, come see for yourself." The Doctor replied coolly.

Settling himself in front of the microscope, Hokin observed what appeared to be red blood cells. But while some blood cells were normal looking, others were darker and oddly shaped, and they were attacking the normal cells by absorbing them and increasing their number.

Confidently, the Doctor spoke from behind him. "The demon cells are taking over her entire body, forcing her human ones to mutate until her entire body has changed and adapted."

"You really are a genius." Hokin murmured as he continued to watch in fascination, as Keiko's demon cells battle with her human ones.

He stayed until every last cell had been taken over, and then he turned to look at the girl still unconscious on the medical table.

The girl who was no longer human.

Hokin felt a smile slowly form across his face.

Post note* I would like to formally thank all of the reviewers who have been nice enough to give me their input. You guys are awesome! ^_^

Hiei's –Dark-Angel

Mimiru

Forest Dweller

Katzztar

Rogue Solus ( hey you, update!!)

Walkingbarefoot

Midnight Lilly

And special thanks goes to Miyako14, who has been nice enough to review all of the chapters that I have put out so far. You Rock!