Disclaimer: I do not own Yu Yu Hakusho or any characters shown in the story, other than my OC's I've created: Yuki Matoke, Kai Sato, Daisuke Sasaki, and Jugo Takamura

Please note that my Fanfiction of Yu Yu Hakusho does NOT start at the beginning of the show, and that it skips the whole arc of Yusuke Urameshi becoming a Ghost Detective and the arc of Rando and his training with Genkai.

This story might make more sense if you've already read or watched the show.

Prologue:

After Yusuke Urameshi is hit by a car, he dies and becomes well aware of it. The so called "Fairy Man" Botan, gives him a chance to get his life back because his death was a surprise to both Living World, and Spirit World. Yusuke goes through challenge after challenge and finally is ably to be in his body again. Koenma gives him the job of Spirit Detector. He sends him on his first mission to retrieve stolen items from three thieves (Including Kurama and Hiei). Later he is sent after the Demon theif Rando and is trained under Genkai while Kuwabara trains at home on his Spirit Sword he acquired during Genkai's tournament.

After 3 months of Genkai's training, Yusuke is back home and begins spending some time with Keiko and Kuwabara when Botan informs Yusuke of another mission on the Four Saint Beasts whom are trying to escape from their prison; the City of Ghosts and Apparitions. They are using what they call Makai Insects to turn humans into their most violent stasis and control the city. Yusuke is sent to stop the Four Saint beasts and destroy the Whistle controlling the humans. Kuwabara joins along. Shortly after they arrive, Hiei and Kurama are sent as backup from Koenma and one by one, the Saint Beasts are defeated. Kurama kills Genbu, Kuwabara defeats Byaku, though Seiriyu kills Byaku for Humiliation. Hiei kills Seiriyu instantly,and they move on to Suzaku's watch tower. Yusuke goes on while the other three are left to fight off Cultivated Humans(Zombies pretty much).

End of Prologue

CHAPTER 1

Yusuke's breathing got heavier as he raced up the spiraling stairs of Suzaku's tower. All of a sudden, he sensed more spirit energy up ahead. He stopped immediately. What enemy now? Or is it Suzaku himself? Heh, no matter, I'll just knock them down, whoever it is, Yusuke thought to himself with a smirk, and continued traveling up the stairs. He stopped, this time facing a women sitting in the break of the stairway. About his age, she was petite, with long red hair, and yellow eyes. Her light blue lace top ended under her bust, but her sleeves flared out. She wore black shorts and black boots up to her knees. She looked at him with a tired, bored face, blinked twice, and stood up.

"You must be Yusuke." She said. She looked over his shoulder, then back at him. "No one following you?" He stared at her, an impatient look on his face. She nodded and stepped aside. "You are free to pass, Yusuke Urameshi." she said as she leaned her back against the left side wall with her arms crossed.

"Huh, thanks for the permission. Not that I was really going to ask." he said and then raced up the rest of the stairs. She looked at him as he passed. Then when she lost site of his figure, she sighed and slumped back down to the ground.

"How exciting..." she sarcastically sighed.

"Urrrrhhhhh! They never end!" Kuwabara shouted in frustration, as he swung his Spirit Sword at the many Zombies coming at him. Kuwabara, Kurama, and Hiei have been fighting the Cultivated Humans for the last fifteen minutes, since they helped Yusuke make his way to the tower. They still have yet to enter the tower with him.

"This is Hopeless. We'll never kill them all in time to back up Urameshi." Hiei stated.(Note, Hiei doesn't start calling him Yusuke until later.) The three looked at the rest of the zombies left, and more so coming.

"You are right, Hiei." Kurama said. "Which means," he looked at Hiei, "one of us will have to leave the group to catch up to him." He implied that to Hiei very clearly.

"Alright!" Kuwabara excitedly said grinning . "You guys clear me a path and I'll go to the tower. Urameshi, you better have left me some!" before he could start running, Hiei blocked him with his sword. Kuwabara flinched dramatically, stepped back, and glared at him. "W-what the hell, shorty?"

"Fool. Kurama was referring to me." He started his way to the entrance, slashing his way through Zombies, leaving the ones posing no threat to the other two. After making his way to the entrance, he looked back to see the other two. Kurama nodded to let him know that they had everything under control. Hmph, now that Yusuke will have my aid, this will be quite easy. He turned and headed up the stairs. It wasn't long before he too, sensed another energy. He quickly disregarded it as no threat, since it came from a human, and continued up the stairs.

He saw her, sitting down on the floor in front of the next flight of stairs. She looked so bored that it was almost as if she didn't notice him there. But she looked at him and slowly stood up. She didn't seem as tired now, or as bored.

"Well, what do you think you're doing?" she curiously asked.

"Move aside, Human, I need to get through to destroy this Demon." He demanded.

"Ha, well, I can't allow you to do that. You see, I've been put in charge of guarding the doors to Suzaku's chamber's and I was ordered not to let anyone in, alive, other than Yusuke Urameshi. I am to kill anyone who defies these orders." she answered back.

"I don't have time for your little game. Move," He demanded as he rested his hand on the hilt of his sword, "before I kill you."

She chuckled softly, and rested her hands at her sides now. "You underestimate me, Demon. That will be your first mistake." She smiled, and her hands started to glow blue. He glared at her, impatient to get past her. Suddenly he hears the sound of clicking. The air heated and snapped violently around her as the clicking got louder and louder, blue lightning emerged, surrounding her fists.

"Huuuaaaaaaaaa." she hummed out with her hands swiftly moving to her chest, making an X formation. Hiei's eyes widened at the sight of the mere human. She thrusted her arms out and the lightning was released towards Hiei. He immediately dodges the lightning and scoffs at his opponent.

"Is that all you can do, Human? Throw Lightning at me? Ha, you aren't so tough. You can even control your-" Hiei was cut off when he felt the lightning's energy to his side. When? When did it appear? The lightning caught his arm and was now trying to engulf the rest of him.

"I can't what, Demon? Control my lightning? Ah ha ha, you take me too lightly." The lightning attached to his arm was dissipating now. He dusted his arm and saw the burns it left, then he glared up at the girl. He pulled out his sword, readying himself again for battle. She looked at him, a little surprised.

"You won't back down?" She lifted an eyebrow. Hiei spat on the ground and swung his sword in front of him. "Mhmm, very well then. You'd better hope that someone comes to rescue you." she said cooly.

"Heh, don't get so cocky." He pulled his sword to the side and disappeared. She flinched at shock from his speed. Suddenly he was behind her, his sword swinging at her. However, to his surprise, she caught the sword in between her two hands. She huffed in relief that she was able to counter in time. She then grinned and began to charge her lightning.

"Hhhhaaaaaaaaaahhhhh!" She purred as the lightning coursed through her arms, to her fists, to Hiei's sword and finally catching onto him. The blue lightning crackled and whipped onto his body, he was submerged in her attack.

"My technique is not to be reckoned with! You will not get out of my hold now, your dead, Demon!" Hiei let out his painful howl as the energy took over. He growled and gripped the hilt of his sword, trying to gain control of himself. He twisted his sword and the blade snapped in half. Hiei was able to escape her grasp, though with the loss of yet another sword. He clenched his teeth as he tried to catch his breath. Steam flowed from his burned body as he knelt on the ground. The girl was also huffing somewhat after her charge on Hiei.

"Quite a punch it packs, huh, Demon?" she scoffed as she tossed the scrap of metal. "You're just lucky you were able to escape that one." She stood sideways as her left foot smoothly slid away from her body and she took up her X stance, however, with only her right arm this time, making only half of her X.

"What else will you be able to do without your little toy? Ha ha, that's a little sad." She started to charge her lightning in her right hand. "Another thing, your speed may be impressive, but that won't do much against lightning." She added with a cocky grin.

"Heh, you really are a fool, Human." Hiei stood up and tossed what was left of his sword to the side. "I can still kill you with just my fists."

"Oh, bring it on, Demon!" She exclamed as she released her lightning. It charged towards Hiei, though he barely dodges and charges after her. The lightning seemed to be following behind him. He payed no heed to the lightning, his target was her. His fist heated up and started to glow.

"Joa Ensatsu Rengokushou!(AKA:Fist of the Mortal Flame)" His fist was surrounded by flame and his hit was directly on target: Her waist. The blow sent her across the area and landing hard onto the stairs. However, the lightning did not stop with her broken concentration. It continued towards Hiei as he sprang up to dodge it again. The lightning slowly faded.

She stood up and spat out blood onto the floor, and wiped her mouth against the back of her hand. "I guess I underestimated you. That won't happen again."

"Don't kid yourself, Human. You've already lost."

"Uurrrhhh... Stop calling me HUMAN! That's really irritating!" She swung her arm, pointing at Hiei. "The name is Yuki. Y~U~K~I! Remember that." She rested her hands on her hips. "Not that you'll live when I'm through with you. Say, What is your name. Calling you Demon is getting old."

"Like that matters. Let me just kill you and get this over with." His fist started to glow like before when he used his Joa Ensatsu Rengokushou. He stepped forth.

"Like I'd let you hit me with that again. Look at what you did to my clothes!" She angrily pointed at the bottom of her half top shirt which was now shredded.

"Hmph, Baka." He charged at Yuki yet again with his Joa Ensatsu Rengokushou attack. Though she wasn't as fast as before, she was able to dodge. He lightning was already charged in her left hand. She released it as she jabbed the back of Hiei's neck. The Shock coursed through his entire body as the lightning grew bigger.

"This lighting is much more affective." Yuki explained as she escaped across the area after her planted attack. "You see, this lightning doesn't just hurt, it sucks away all of your Demon Energy, leaving you helpless. I'd like to call it... Kiseichu Kaminari(Parasite Lightning)" She slowly walked over to Hiei's body. He was on the ground on all fours, trying to hold back his screams of agony. He clenched his fists as she leaned over to get a good look at her victim.

"Can you feel it, Demon? Your life, slowly slipping away?" Suddenly, her expression went from satisfied to shocked in a split second. She stood up and looked up the stairs. She calmed her panicked nerves and slowly, the lightning dispersed. Hiei huffed heavily as he tried to catch his breath. Yuki started her way up the stairs.

"What's wrong. Can't finish the job?" Hiei huffed as he lifted his hands from the ground. Yuki looked at him over her shoulder. She closed her eyes.

"There's no point in killing you now. Not anymore." She started up the stairs again. When he lost site of her, he got up and followed. His body was still aching from her Kiseichu Kaminari. He slowly made his way to the top of the steps and in front of the entrance to Suzaku's chamber. Lying on the ground, was what was left of Suzaku, and a half dead Yusuke Urameshi. Yuki knelt on the ground next to Yusuke.

"I'm assuming you are the one who killed Suzaku." She looked at the half dead human and placed her hand on his chest. Her Lightning swarmed around him, illuminating his body in a blue light. Yusuke's breathing lightened and he rested easy now. Kurama and Kuwabara were just entering as she stood up.

"Well then, I'm leaving." She said as she headed towards the door. Hiei's fists closed.

"Just like that? And why aren't you going to try and avenge your 'Master'" Hiei asked, emphasizing the word master. She stopped, baffled. Then she laughed.

"Like I could take on three idiots. One's enough. Besides, Suzaku wasn't my master. He practically encased me here, and now that he is dead, I don't intend to stay here, let alone fight meaningless battles. Nice fight though, Demon." She said with a smirk. "You would have been a goner, had this loaf not killed Suzaku."

"You really believed you could have killed me? You're sadly mistaken." Hiei threatened. "I will prove right now just how wrong you are Hu-" he was cut off by Kurama.

"Enough. Let us just get Yusuke out of here already." Kurama implied as he let Yuki pass. Hiei watched her leave with cold eyes. Kurama and Kuwabara both grabbed Yuskuke. And just as they came, they all left.