Author's Note: I decided to take down my other fic and put this one up. I didn't like where that was going. It was a little too mary-sueish. (is that a word?) Anyways, um, what was I going to say? Don't flame me for the name of my character. I'm really bad at names, and American and English names bore me. (Trust me, I have the most boring, unoriginal name under the sun. I don't want my character to have the same curse.)

I do NOT own YYH, or Hiei *starts to cry in self-pity* and we all know that. Is everybody clear? Good.

If this is a mary-sue, please let me know and I'll fix it straightaway.

Oh yeah, someone explain to me the difference in youko and youkai. I don't know and everyone else does! I think Kurama's a youko, and Hiei's a youkai…is that right?

Chapter 1

~*~*~*~*~

Deep in a dark forest of the Makai, a bleeding form fell to the ground with a thud. (cliché!)

"Mercy!" it begged. (cliché, huh?)

High, cold laughter greeted this request. "I don't think so." A sword flashed once, beheading the unfortunate demon.

"Good work."

"Whatever. What I don't understand is why bother waste your time and money on such a low-class."

"I…have my reasons. A personal grudge. Here's your pay."

The figure snorted, and began sifting through the bag.

"Its all there."

"I'm checking anyway."

"I have another favor to ask of you."

"Cut the small talk. What is it?"

"There is a group of four spirit detectives, known as the Urameshi team."

"I've heard of them."

"Naturally, what demon hasn't? I want them dead."

"I figured as much. Four, and all of them spirit detectives," it mused, "that's going to cost a lot. You have the money?"

"Of course."

"You better, unless you want to be next." With that, the cloaked black demon vanished into the shadows.

~*~*~

"Be quiet. You're making enough noise to alert the entire Makai of our presence."

"Shut up, Shorty. This is hard," Kuwabara whined.

"Hn," Hiei replied.

"Will you both stop acting like children?" Yusuke cried in exasperation. This had been going on for the past hour or so. The members of the Urameshi team were traveling in their own fashion, Hiei jumping from tree to tree, Kurama running lightly over the ground, and Yusuke and Kuwabara tripping over roots and vines while trying to keep up with Hiei.

In another part of the forest, another demon was running also. It was searching around for any energy signals (?) in the area, and finding none. 'This is really annoying. They must have a cloak or something, because this is the area they were rumored to be in.'

"Hey, guys, I think we should stop."

"What is it now, Kuwabara?"

"I'm getting a weird feeling around here. Like, it's not entirely bad, but not good at all, either."

Shortly after, the demon found what it was looking for. Four incredibly strong ki's, and right in front of it? The demon stopped short to observe. Yes, it was the Urameshi team.

"Right there!" Kuwabara shouted. The demon started. He shouldn't have been able to detect it, with the mild cloak it had put over its ki. Well, game's up.

"Hello, boys," it said, stepping out of the bushes. "Hate to say it, but you've all got an appointment with death, right now."

"Hold on a sec," Yusuke shouted. "Why do you want to kill us?"

"Nothing personal. You can fight me one by one, or in a group, whichever you want." The demon threw off its cloak.

She was as short as Hiei, maybe a little shorter. She wasn't thin; rather, she looked lithe and powerful, and compact. Her weird, cat-like, yellowish-green eyes shifted constantly, and she had frosty pink lips. She had a pale, almost ghostly complexion, no doubt from traveling and operating at night. Two furry black cat ears poked through her dark blond and brown streaked hair, which stuck out in crazy spikes from a simple ponytail.

She wore knee-high black boots and dark gray breeches, and a black belt. She had a tight black leather shirt, and through the v-neck, the detectives could see white bandage, wrapped like a boa constrictor around her chest. She wore black armbands on each arm for decoration, and her wrists and hands were wrapped for protection. But the most noticeable feature, to the fighters at least, was a black leather scabbard thrust through her belt.

"So what'll it be? One by one or the entire group?"

The team conferred quietly for a few seconds. "One by one," Yusuke announced.

"It's against my policy to fight girls," Kuwabara sniffed.

"That's not very wise, Kuwabara," Kurama said.

"And why not?"

"You're going to offend a lot of female demon fighters if you go saying that around here," Kurama answered.

"I'll fight her," Hiei said. The team looked at him strangely. Hiei usually didn't waste his talents until someone else had been beaten soundly.

"Good," she said. "Let's not waste time."

"Wouldn't want to." Hiei threw off his cloak (?) and lunged at her without another word. The cat demon was ready for him, but not ready enough. She had heard of Hiei's incredible speed, but she only narrowly avoided being cleaved in half by his downward strike. She responded with an attack of her own, which Hiei dodged. They fought like mad for a few more minutes, and then it became clear that Hiei had the advantage. He completed a complicated maneuver, and rested his blade across her throat.

"Hiei, that's enough!" Yusuke called.

"I know."

"What are we gonna do with her?" asked Kuwabara.

"I don't know," Yusuke said.

"You're not going to do anything with me," she gasped, struggling to escape from Hiei's grasp.

"I don't think so," he growled, pinning her on the ground with one foot resting on her back. The edge of his katana never left her throat.

"We should take her to Koenma," Kurama suggested.

"No!"

"Yes, let's do that and get this over with," Yusuke said. She was dragged, kicking, punching, and occasionally, biting, towards the Reikai. (?)

About halfway there, she stopped struggling and said, "Alright! I'll cooperate! Put me down!"

"Are you serious?" Yusuke asked incredulously. All that trouble, and she was just giving up?

The cat demon nodded her head.

"Put her down, Hiei," Kurama said.

Hiei dropped her unceremoniously. "Humph," she said, dusting herself off.

~*~*~*~

"Koenma, the detectives are here," Boton said.

"Tell them I'm busy."

"Well, they're still on the mission."

"Then what are they doing here?" Koenma shouted, exasperated.

"Well, apparently, there's some girl who tried to kill them, and they brought her here to see you," Boton explained.

"I'll talk to her later! Tell those boys to get back on the mission!"

"Right away, sir!" Boton hurried off to relay the message.

~*~*~*~ A few hours later ~*~*~*~

The cat demon was still sitting cross-legged outside Koenma's office. Boton had passed by every once in a while, and the strange demon had not moved at all. Boton doubted if she had even batted an eyelid.

"Alright, BOTON!!" Koenma cried. "Tell the girl I'm ready now!"

Seeing the cat-like form across the hall, he started and said, "oh, you're here. Come in, and don't try anything!"

'I won't' she thought. She followed the toddler into his office and sat across from the desk.

"Who are you?" he asked.

"That's a pretty broad question."

"What is your name?" Koenma could see this was going to be a very long afternoon.

"My name is Kai."

"What are you?"

"You can't tell? I'm a cat demon."

"Are you any important demon, like a princess or something?"

Kai laughed. "No. A lot of cat demons think they are, but none are anything special. I don't think cat demons even have a leader. We're pretty independent." That was possibly the longest statement she had said in years.

Koenma decided not to pursue the matter further. Now for the real questions. "Why did you try to kill the Urameshi team?"

She shrugged. "It was nothing personal."

"Did someone ask you to do that?"

"Yes."

"Was it a favor?"

"No."

"Did someone pay you?"

"Yes."

"Who is your client?"

"I'm not going to tell unless there's some kind of benefit for me."

"If you tell me, I will let you stay out of Reikai jail in exchange for this information and a little bit of community service."

The demon thought. "Okay. Actually, I'm happy to screw the ugly bastard over."

Koenma winced. "Language, please."

"Sorry. He's a demon businessman, don't like the guy, but I work with him, because he has money." Kai went on to explain all about her client, where he lived, when he was home, and so on.

A/N: It's not important, and I'm not feeling creative!

~*~*~*~

"This is what he calls a 'little bit of community service'?" Kai muttered to herself, seeing the four fighters before her. 'This is going to be living hell.'

The Urameshi team had just returned from a successful mission, and were looking forward to going home to relax. Koenma cleared his throat. "Yusuke, I have an assignment for you. Instead of sending her to jail, I decided to give this young lady a second chance and work with you and the team. She's on probation, so I suggest the team doesn't break up this time because you need to keep an eye on her."

Koenma was greeted by blank stares. "You want us to do what?" Yusuke asked.

"I already explained it. Yusuke, Kuwabara, Kurama, and Hiei, this is Kai," Koenma announced. Kai nodded.

~*~*~*~

"Do you think you could look a little more normal? I mean, we're going to Ningenkai, and the people there aren't used to seeing cat ears and fangs," Yusuke said.

"I could," Kai said crossly. She screwed up her face in a scowl, and altered her appearance so that she looked more human. (can they do that?) Her furry black ears disappeared and her fangs shrank. Even her eyes lost the strange yellowish glow.

"Much better," Kuwabara said.

She growled in response.

"And you can't wear that," Yusuke added.

"Why not?"

"Because you're going to school with Suuichi here," Yusuke smirked, indicating Kurama, "and you have to wear human stuff."

Kai temporarily forgot her unpleasant situation. "Suuichi?"

"My human self," Kurama explained.

"Oh, I didn't know that." She thought. "But why am I going to ningen school?"

"Because Kurama needs to keep an eye on you, that's why." Kuwabara answered. Kai glared at him. She was really starting to dislike the redheaded ningen.

"What's Hiei going to do? He can watch me," she said desperately. At least she knew he wasn't going to school.

"I'm going out. Alone," Hiei said, and left without another word.

"Well screw you," she answered. "Alright, I'll go."

"No demon stuff," Yusuke called over his shoulder.

"Whatever," she muttered. "So, Suuichi, where's your school?"

A/N: PLEASE REVIEW!!!!!!!! PLEASE, PLEASE, PLEASE, PLEASE!!!!!! Pretty please with sugar on top? Did ya like it? Yes, no, maybe? If the beginning part is cliché, don't tell me because I already know.