Disclaimer: I don't own Hunter X Hunter or Nanatsu no Taizai

Summary: After escaping from her home after her people turned against her, Kai a former fairy queen decided that her new goal would be to pass the hunters exam and figure out what she wanted to do with her life. Killua X OC

Warnings: Slight crossover, don't need to read Taizai to understand. Violence and killing, because assassins ad knights and sins.


Chapter Eleven:


The reason for the "permanent death" rule having been found, the watches stared wide eyed at Ban's chest, and there was no more injury. Just masses of blood which were quickly drying up, the man didn't even bother to wipe it away, just left the life blood there.

"You know, it seems you're getting pretty comfortable here. I wonder if you would even come if the Captain asked anymore." Ban spoke in a completely serious voice as be bent down to grab some rocks.

Kai, who was floating several feet above her opponent, had a completely change of attitude. Her face went blank, "You're questioning my loyalty to the Captain?"

Ban just stared, blankly as she was and not even bothering to answer the question.

Making a jerky hand movement, Chastiefol flew toward Ban at top speed. It was clear in that moment that the mood of the battle had changed from a spar to a fight. The movements from Kai were nonstop, cutting into Ban at many points and slicing deeply into his skin.

Ban remained relatively unaffected; pain was something he was used to. If anything the man was getting faster, Killua was the first of the watchers to notice.

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.

Most of them were still stupefied by the idea of someone dying like that in front of them getting back up as if it were nothing. Even Gon wasn't exempt from such a surprise. Killua's next words snapped most of them out of it, "It's slow, but Ban is starting to move faster and Kai is starting to move slower."

Gon snapped out of his shock and looked closer, "Isn't Kai fast to lose power anyway? Remember the battle against the old man."

'The old man?' Leo-san and Kurapika thought to themselves.

"Yeah, but I don't think it's the same thing. Against the old man, she was using physical attacks; this is clearly not even in the same category of fighting. There is most likely something else factoring in here that we don't know about." Killua theorized, his eyes flickering along the battle with rapid fascination.

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'Tch' Kai thought, a trail of sweat coming down her face, 'He's using snatch on me.'

Snatch was Ban's magic power.

Magic powers on their continent matched the user's personality and, well not always powerful, they were in the case of the Seven Deadly Sins and most powerful knights.

Ban's power snatch fit him well. The former bandit, Ban stole for a living. Snatch stole the power of his opponent, adding it to Ban's own natural ability and making the opponent run out of juice much faster.

The ability Kai had was also useful, but not so much against Ban. Increasing or decreasing was her power on its most basic level. The ability to cause disasters, as the name indicated. Should she wound someone, she could make even the smallest paper cut a fatal wound. This wouldn't do much to Ban, who couldn't die or actually be fatally injured.

It put her at a disadvantage, but not one hard to overcome. Mainly, the fight just needed to end as soon as possible if she was going to win.

"This is dirty Ban, not only do you question my loyalty, but you push the rules of Captain's spar by using snatch." Kai spoke, not letting up on the constant attacks.

"You left the fled the country Kai. All the other Sins are still there in hiding, yet here you are living up a cushy life. It's no wonder you committed the Sin you did, Grizzly Sin of Sloth." As he finished, he chucked a rock in-between her attacks at an opening.

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.

Kurapika found all the confirmation that he needed with the words Ban had just spoken, "So it is true then… She is one of the Seven Deadly Sins… Some of the worst criminals ever."

Killua, Gon, and Leo-san quickly spun to look at Kurapika, who was scowling in the direction of the fight. Some of them were shocked to even think about something like that. Kai didn't seem the type to do crime, so they would never have thought…

Killua wasn't nearly as shocked. People didn't just take hits like Kai had been taking without having some experience in the field. Never mind the fact that she figured out his profession the moment he mentioned it – And had been putting it together far before that. Sometimes the way she looked, especially now, it all spoke toward a life of crime, or hardship.

Leo-san was panicking internally; someone so dangerous had been with them the whole time? However, it was Kai, cute, small, weak Kai. There was no way Kurapika was correct.

The only one that didn't really react in a predictable way was Gon, who actually gave Kurapika a hard stare, "Kai is our friend. What she did in the past doesn't matter anymore.

Killua gained a blush the moment those words left Gon's mouth, thinking back to the airship.

Kai tilted her head in thought before answering, "The way Kil-kun moves is so silent and purposeful, plus Kil-kun has very high ability even higher than Gon possibly. It's not easy to get that without training, and Kil-kun had that ability to sense Hisoka's killing intent. It fit all together once you mentioned assassination."

Killua couldn't help but stare at her wide eyed before asking, "Eh… And you're okay with it?"

Kai hugged Kil, who seemed a bit shocked still, before answering. "Kil-kun is Kil-kun, who his family is and what his abilities are don't matter. Not even what Kil-kun has done in his past matters. Now is what matters and now Kil-kun is one of my only friends."

Kai nuzzled at Killua, making him swallow nervously. He'd never had someone so close before, someone who seemed to except him for all sides of who he was. Both being an assassin and being the young teenager that he was, and didn't want to change him. A horse thank you escaped him before he could stop it.

Killua could feel his whole face heat up even hotter, especially when Gon shot him a weirdly knowing look. Gon's on and off again perceptive abilities were too much.

They all turned back to the battle soon after though, hearing something that made them wince

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The rock hit with a sickening sound, it almost sounded as if something had broken with the snap that echoed around the room. Instead Kai flew backwards, not of her own accord, but the force of the attack from Ban causing her to nearly go out of the arena.

Though she stopped just in time, holding her stomach from the repeated abuse, the glaring she gave didn't stop.

"Bringing up my sin, as though your own isn't just as bad if not worse – Maybe I was slothful, but I wasn't the one that killed the Spirit of the Forest. The innocent, bright eyed girl. Don't tell me that you forgot my sister Ban, your sin is far worse than mine could ever be. I could murder thousands, and it would never be as horrible as your sin toward Elaine." Kai spat the words out, before snapping her fingers.

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'Her sister?' the group thought collectively, Killua mouthing the words.

Had his sister been killed and he had the person who had done it right in front of him, he didn't think he'd be able to hold himself back. Something else must have been going on here; there was no way Kai could allow herself to work with the murder of her sister. They hadn't known each other long and even he knew that. There must have been some reason…

Leo-san was the one looking for an excuse though, and when you look for something you find it. 'So Kai isn't actually a criminal, she was just joining that group to find her sisters murder. It all makes sense now.' Leo-san thought with a relieved nod, watching the fight with renewed rapt attention instead of growing horrour as he had been.

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Words weren't said, but Chastiefol clearly changed configurations into multiple little kunai knives. They flew at Ban, many of them hitting, some of them ending up dodged, but that wasn't the goal here.

The majority ended up behind Ban, who didn't care as he ran toward Kai with heavy emotions in his eyes. He planned to do damage, he planned to kill her for the horrible reminder of what his sin was and what he had done. Maybe not kill, but torture her at the least.

Instead he was grabbed.

Green hands covered all four of his limps, lifting him up and not letting him go no matter how he struggled.

Eventually all movement stopped from the Sin of Greed, and both him and Kai stared at one another. Kai's eyes which were usually a light brown had turned dark, nearly black with emotion, mainly anger.

"You know, I don't think I've ever used this in a spar with you. Mostly because Elaine wouldn't have approved – But then I guess you shouldn't have pissed me off so much." Kai gave a twisted smirk toward Ban, who remained expressionless, but slack, almost lazy in posture.

Kai put her hand out, the trapped Ban watching with half ladled eyes, "I'm sure you know about how my sacred weapon has many configurations."

"Ehh?" The man drawled out, as if confused by what was being said.

Kai just tilted her head to the side, her lips still painted with a devilish expression, "Right, with you it's always in one ear and out the other unless it involves you. I wonder how my sister ever loved you, but then she was innocent I'm sure it was easy enough for you to trick her into it."

There it was, that spark of emotion that Kai was looking for. The man started to struggle again, not that he could break the hold.

Maybe if Ban had an actual weapon he'd have a chance, but strictly put Kai had a lot more experience and raw power than Ban. Although physical fights were more Bans' forte, at least seven out of ten serious fights Kai would win.

"I like that look on your face right now." Kai retained her smirk for a moment longer before she closed her hand in a fist, "Chastiefol Configuration Three: Fossilization"

Out of the guardian form that was holding Ban still can a spear. It was a little bit different from usual, it seem to be split in the middle.

It impaled Ban, but this time something a little bit different happened. Stone started to spread from the site of insertion, "It works as its name. I haven't had the occasion to use it in years… The last time had to have been… Hmm well maybe someday you'll find out. If you by some miracle can find yourself un-fossilized, which I doubt."

Instead of fighting farther, Ban just stopped and closed his eyes.

Kai felt a jolt, Ban thought he deserved it.

Which he did, there was no debating that in Kai's mind. Her sister was dead, and she wouldn't be if Ban had never showed up before her. There was only two things on her mind right then. Her sister would hate her if she had saw what Kai'd done to Ban. The Captain would also be unhappy with her.

Abruptly, Kai dropped her hand, the weapon pulled out of Ban and the man slide to the floor regaining regular colour as Chastiefol turned back into a pillow form.

"That was fifteen seconds."

Kai started to walk back to the group, not turning back to face the man she'd utterly defeated, "If the Captain ever needs me to, I would storm the Capital with him slaughtering any Holy Knights that got in our way. Don't doubt that of me Ban; don't doubt that of any of the Sins. You should know better, seeing as how you feel the same way."

Instead of floating for once, Kai walked back. It felt like it had more meaning, walking away from Ban right now as opposed to her norm. Her boots made loud, almost final sounds as they stepped firmly back to the platform were her friends were.

They were all silent, looking at her with wide, impressed, horrified, or curious eyes.

Kai couldn't blame them for that, after all there were hints at a lot of curious things in that fight. Even knowing a criminal like that was cause for alarm to most. The only thing she didn't care about here was Kurapika's current disgust; it didn't even come close to what she was growing to feel toward the blond.

Similar, but different

"Soo… How do we get to the next stage?"

Her question was answered a moment later, another platform came out of the wall.

Seemed like the next stage of this little test was coming up.

"That area that just opened up is the place where you will spend the hours that you gambled away."

Kai started to walk toward it walking past Ban who was lying on his back staring at the roof. It was something that he did when he was thinking, look at the sky. He had the same look, even though at the time he was looking at brick tiles.

They didn't say a word, but Ban did look into her eyes for only a second.

He understood now, that Kai was loyal and that he shouldn't have made a comment like that.

Only Killua and Kurapika saw the little interaction, and they had completely opposite reactions. Killua knew that it meant they were getting along well now, there didn't seem to need to be words between them. It made him feel warm, maybe glad for her friend? It also made him feel a little angry, which he didn't really understand but guessed it was because the man hurt Kai so much.

Kurapika just watched her suspiciously, thinking of a way to somehow get out of spending hours with her, but found no possible solution.

Once entered, the door closed behind them and locked them in the 50 hour waiting room.

They all turned to Kai, questions on their face.

This wasn't going to be fun.


End Chapter:


Authour Note: Sooo this was this chapter~ Tell me what you think! I liked adding in the whole loyalty to the captain thing, because I truly think from Ban's point of view that would be what he was seeing there. I could be wrong but ehhh~ Who's ready for the questioning in the next chapter, I can just picture Kurapika going off on Kai here. I will not be bashing Kura-chan if it seems like that in the next chapter, or if it seemed like that in this one. Kura-chan just isn't completely stable when it comes to villains like the Troupe, eventually the two of them might get along together again. We shall see...

Anyway tell me, do we want a Kil-kun Kai moment in the next chapter?

Tell me if this chapter was hard to understand from the POV breaks in this. I'll never do it again if it is promise~

ALSO! I got a review from KuroRinkusu thank you so much ~ HEARTHEARTHEARTBECAUSEFORSOMEREASONTHESYMBOLISNTALLOWED

Read and Review!