Killua had sworn never to be an assassin again. He was sick of killing others for profit.

Killing the trio from earlier, however, was the lone exception. After getting the basic rundown from Luna about the Dursley family, Killua wasn't the least bit sorry for what he was about to do.

Petunia Dursley had shot her niece such a look of pure loathing, Vernon had looked at her in a way that made his skin crawl, and the fat pig Dudley was such a jerk that there was little hope of redeeming him.

Sure, his parents were disguising this as a basic assassination mission under the guise of a contract with the Potter family (he had no idea who they were, but he was glad for the opportunity to get back at the Dursleys for what they did to poor Luna) in order to keep him from being arrested for murder. Hell, he could be standing in the room once the cops came with their blood on his hands and the weapons dripping and they wouldn't be able to arrest him as long as he had the contract.

Plus with his Hunter's license, they wouldn't care.

Killua slipped into the room, and waited for his time. Patience was something you gained in spades if you were an assassin.

Suddenly the woman walked in, her husband behind her carrying a large amount of bags. Killua dropped down and slit her throat with his elongated nails. There was a reason why Luna compared him to a cat. Vernon screamed and kept screaming until his body finally caught onto the fact that his heart was missing. Dudley wet himself before Killua repeated the process from earlier.

When the mafia came in to investigate the screaming (they were on edge after the incident during the underground auction, and with good reason) to find a boy with blood on his hands and a beating heart in his right hand.

"Who are you?" demanded the leading mafioso.

"Zoldyck. I have the contract if you want to see that too," he said bluntly.

"A Zoldyck? Carry on then," said the man from earlier. They weren't about to mess with a Zoldyck on contract. He didn't need to see the contract, the ice in the boy's eyes and the ease in which he crushed the heart was all the proof he needed.

And if the kid was lying, well, then the clan would have to take him out soon enough.

Killua walked out the front door covered in blood and no one even stopped him.

"Well done Killua."

"I would have done it for free if she had asked," said Killua.

Illumi resisted the urge to laugh. It was pretty damn clear that Killua liked Luna a lot if he was willing to kill the people who turned her into what she was now.

"Yes, about that..."

"The contract wasn't legit?" asked Killua sharply.

"Oh, it was real alright...but the one who 'officially' hired you was Luna herself. Why did you think the pay out was so low?" said Illumi. He was recording this as blackmail for later. It was only fair, since Luna conspired with Killua against him.

"What?"

"Luna's father's last name was Potter. She used her father's account to pay for the hit at Father's recommendation. Why else do you think we gave her the family discount?"

"Suddenly I feel a lot less guilty about killing them. It's a miracle," he said dryly.

"I have asked father, and he said that should you take up the profession of a Black List Hunter he will not force you to take up assassination aside from the odd job."

"I get to pick which jobs, right?"

"As long as you keep up the family profession I'm sure we could work out an arrangement," said Illumi calmly.

"In that case tell dad we have a deal. I'll become a Black List," said Killua. He had been wondering which one to take, and Black List hunters usually went after real scumbags.

"Father, I have gotten Killua to accept your suggestion. He agreed to take the odd jobs so long as he can pick which one he goes on."

"Well done Illumi. At least now we can keep our heir. Any other news?"

"He performed the 'assignment' without a word of protest and it was done efficiently. Aside from the mafia being on edge enough to investigate the screams of the man, he left without any trouble."

"Good. See if she can get him to improve on his technique in that area as well once he finds out how to use Nen properly," said Silva.

"She has already started teaching Alluka that disappearing trick of hers...apparently it can be learned."

"Interesting."

Luna was making an inspection of one of her vaults, this one had no gold in it but items that had been bought by the family that they didn't have the space for. She was about to leave the vault when her foot caught on something. Further inspection revealed something she never expected to see in a magical vault.

Why was there a Joystation in here?

Close to it was a large number of discs and a few memory cards. Now she was really, really confused. She put it in her bag and decided to look into it later after dinner.

"I thought magicals didn't like electronics?" asked Kurapika, just as confused as she was. He had managed to get out of his contract by claiming that he had entered into another that would kill him if he didn't show up. His employer had been less than happy, but had released him.

At least he got a good contact out of the deal. In exchange for helping Melody find a series of music sheets, she would help them out from time to time.

"So did I. And look at the number of game discs in here. Some of these were only sold for a limited time before they were no longer produced. And you won't believe what I found in the console."

"What?" asked Killua.

She popped it open, and everyone's jaws collectively dropped in disbelief.

There, sitting innocently in the ordinary console, was a copy of Greed Island.

"And get this. I found a journal that my father wrote explaining why he bought the thing, even though he didn't have a clue what it was. Lily got him interested in normal entertainment in the hopes he would want to learn more about muggles. However after buying Greed Island and finding it didn't work, he gave up. He bought a copy mostly because according to him all the good games were very high-priced and he assumed the same would be for this one. He finally left it in the 'junk' vault since he didn't know what else to do with it and it's been accumulating dust ever since," said Luna.

Kurapika twitched.

"James Potter bought a copy of the most expensive game ever made and left it in a vault all this time?" said Kurapika.

"Talk about wasteful...he sounds as bad as Milluki," said Killua sweatdropping.

"Well, at least now we don't have to go through that Selection Exam just to get into the game. The only question is where do we set up the system? We can't stay here, not with the Spiders running loose," said Luna.

"I heard a rumor that the Spiders will attack the new sight of the Mafia's Underground auction in order to draw out the one who killed a member," said Kurapika.

"Any idea who it was?"

"...It was me. I killed him before you contacted me earlier. Melody told me that they were hunting for the 'Chain-User', which was why I hid here. No one would bother an older brother who is keeping an eye on his younger sister and her friends."

"Seriously?" said Luna. Kurapika nodded, explaining how he caught and later killed a Spider who happened to be the same type as Gon in terms of Nen.

Upon hearing about the crazed Genrei Ryodan, Luna did the only thing she could think of.

She conjured a harisen (paper fan used to deliver punishment that only sounds painful when hit) and started beating the living daylights out of her brother for being an idiot. Killua was laughing so hard that he didn't notice he was sparking like a wire with a short.

When Luna came too close to him, his sparks suddenly coalesced into a natural electric barrier.

The fan caught fire and she dropped it quickly.

She blinked.

"I don't believe this. Six days of trying and failing to make a Nen ability and you do it while I happened to be attacking my brother?"

"What?"

"Take a good look around you. Notice anything odd?"

"What the heck?!" said Killua, finally taking note of the barrier. It barely went a foot around him, but when he touched it, he didn't get shocked. Alluka touched it, and her hair went completely frizzy.

"I suppose your attempts at recreating the Chidori and Raikiri would produce some odd results..." said Luna.

"So I can create a lighting barrier? I wonder if it can protect others."

"Why don't we test that out now. Deactivate your Nen and we'll start experimenting with it. Gon, have you made any progress?" asked Luna.

Gon held up an arm. It morphed into a furry hand.

"Arm of the Beast King," he said.

"Let me guess, it allows you to enforce your body to the point where it can copy a beast's strength as long as you've seen it once?" said Luna.

Gon nodded. She looked at Leorio.

"I call mine Absolute Surgeon. Lets me operate using Nen or with a regular scapel. Only problem is that I can't keep it up for very long."

"Your reserves are quite pathetic, that's why. At least now we can tell Master Silva that you've managed to come up with something," said Luna.

Illumi stopped by to see what they had come up with. Killua had been practicing for hours to duplicate the barrier from earlier.

He threw out a hand and said "Lightning Jail!"

At his words, his Nen flared and created an imperfect barrier around Illumi with electricity. An experimental touch caused his hair to poof up a bit. He gave Killua a look, as it was clear that the boy was exhausted.

"Is this the best you can come up with?"

"Hold on... Thunder Barrier!"

The jail vanished, and a shield of lightning surrounded Killua. It was smaller than before, but the power of the electricity had increased.

"Two abilities?" said Illumi, surprised.

"Luna helped out a lot," admitted Killua, exhausted.

"I'll inform father that you've completed the task given."

Killua would have said something, but he was on the verge of collapse. Illumi caught him and deposited the boy with Luna. She nodded to him, and had the phone ready to order massive amounts of food when he woke up.

Killua woke up a day later, once his reserves were filled up enough. Luna ordered all his favorites, and he was soon chowing down with the rest of them. Once they filled up, they decided to declare today one of rest. After all, they had managed to come up with a Nen ability that suited them and they needed time to relax for a bit.

Kurapika immediately jumped on setting Killua and Luna up for another date. Hopefully this one wouldn't be interrupted like before. Then again, after what he heard from Melody, he would be very surprised to see the Dursleys again. According to her, an assassin targeted them a day after the confrontation and none of them survived.

Kurapika suspected either Illumi or Killua for the deed, but refused to confront him.

Killua and Luna were enjoying a movie when they heard someone having an outdoor concert.

"The dancing snowflakes are fragments of stars

Reaching out towards the heavens

I can feel my wishes as they come and go

Everything is now in monochrome

The white breath spilling softly from my lips

Is shaped like words I want to convey

It must be the warmth that's making the sky grow faintly lighter

Our wings are drenched in shared sorrow

Turning pure white as they overlap

And becoming a gentle courage for the future we passed to each other

The beating of my heart as I wait for the dawn of an unknown world

A new tomorrow that begins as I depart with the first rays of light

The dancing snowflakes are fragments of stars

Reaching out towards the heavens

I can feel my wishes as they come and go

Everything is now in monochrome."

(Look up the anime Star Driver. This is the song that the girl sings every time there is a Mecha Battle in that weird side world. It's called Monochrome, or the Fish Girl's Insert Song.)

Luna wasn't the only one clapping to the girl's beautiful voice. Killua liked it too. There was actually a line of people who were buying a copy of her CD.

Unlike last time, Killua and Luna actually got to enjoy their date. Not that Killua or Luna knew it was one. Neither of them had any experience with social interaction outside killing others, and Gon was Killua's first real friend. It was understandable why they were confused at how the older women kept commenting that they were a cute couple, particularly since was actually wearing a skort and tank top.

(Everything else was in the wash...and the rest was hidden by a mischievous Kurapika.)

Kurapika was with Gon taking pictures for later to tease the two. Well, that and blackmail material. He wondered how his sister would handle the fact she was going to be engaged to the cheerful Killua once she turned sixteen.

Illumi had given him a copy of the standard agreement between families, since Kurapika was technically her legal guardian. According to the family's law, the Zoldyck Heir would have to marry a woman or man who fit their criteria when he was old enough in order to carry on the name.

And the girl Silva and Zeno agreed on was Luna, who was Kikyou's apprentice. At the very least, Killua wouldn't object too much to the match, since he got along with her outside jobs and training.

Plus Kikyou could be quite frightening once she got it into her head about grandchildren to spoil and train. Not even the Zoldyck men and their Butlers were willing to cross a woman who wanted grandchildren to spoil rotten.