Hello everyone! This is my first ever Kai X Hil fanfiction. This is a rather dark story (Well, for me at least anyways) Hope you enjoy it.

Don't forget to Rate and Review and enjoy the story!

Russia: 6:30PM

"Is Boris inside?" Kai questioned the guard at the door.

"Well this is his mansion, so obviously he's in" Said the guard in a venomous tone.

"Thanks, punk!" Kai shouted, before the guard could answer, Kai had jumped over the gate and ran towards the front door.

He took a deep breath and thrusted open the door as hard as he could, other guards were inside. They were alerted to his presence and ran towards him, with guns drawn.

"Hmphh, will they ever learn?" Kai thought to himself. A guard opened fire with three rapid shots, Kai dodged the first and second bullets with ease. For the third one he pulled out a knife and split it in half, both halves going in opposite directions, striking other guards and killing them in the process. More shots were fired, but they all had the same result, Kai dodging all of them. He flipped a table over in front of a dead body, using the table as a shield as he took the dead mans weapons from him. He quickly poked his head from the table and opened fire of his own, taking out a few guards. He sighed loudly before kicking the table into a vertical position and kicking it again, sending it sliding across the room. He ran behind it to shield himself from the last few guards. The table stopped before them, they kicked it out of the way only to meet their end. Kai stabbed the last of them with a blade he had concealed in his trouser leg.

"Well done, Kai. Impressive showing" Said a voice. It was Boris! He walked down the stairs slowly, clapping his hands as he went.

"I think the same thing would have happened if I politely knocked" Said Kai sarcastically, looking at the bodies around him.

"So then Kai..." Said Boris, reaching the bottom of the stairs. "What is it that you seek?"

"Don't play dumb with me! Boris" Said Kai, pointing a finger towards Boris. "I want the antidote"

"Oh, the antidote. You could have just written a letter in advance Kai, save you all the trouble" Grinned Boris darkly.

"I need it right away Boris" Said Kai, his voice was less angry and rough."Hilary's been poisoned, she only has a few days to live... please, your the only guy I know who has it. Though I don't even like you, you must help me. This is for Hilary's sake!"

"Hilary's been poisoned?" Said Boris in suprise. "Well thats just... terrible news. Tell you what, I'll help you out" He added grinning.

"I know there's some sort of catch to this" Said Kai, knowing Boris all to well.

"You see, it's kind of a "You scratch my back, I'll scratch yours" Kind of deal. I'll get Hilary the antidote for the poisioning on a fortnightly basis. Because taking the antidote all at once will cure it entirely, but it will kill her in the process"

"Go on" Said Kai, sitting in a blood stained chair as Boris continued.

"That's where your part of the deal comes in. You see, I have a few people that need to be "Taken care of" You know what I mean?" Asked Boris, looking over at Kai.

"An assassin?"

"Smart boy" Smirked Boris. "I want you to join my assissnation squad in taking out all my enemies, by then, Hilary will be cured. And you will be released from your services"

"You know, I've never liked you Boris. As a matter of fact, I despise your guts. Under any normal circumstances, you could stick that assassin's job right up your ass! But this is for Hilary's sake, so... We got a deal?" Said Kai, standing up and offering his hand to Boris.

"You've made a wise decision Kai" Said Boris, shaking Kai's hand. "Lets get the first box of antidotes sent to Hilary right away, shall we?"

"Wait" Said Kai. "Hilary must not know I'm working as an assassin. I'll say that I'm working at a scientists lab here in Russia, which is were I'm getting the antidote from"

"You are a very smart boy" Said Boris, in an almost caring tone. "Now lets get that antidote sent as soon as possible, then I want you to meet your team"

"Very well then Boris" Said Kai as he followed Boris down the other set of stairs to his experiments lab.

Back in Japan, 8:30 AM

Hilary awoke from her tear stained pillow, she was crying her eyes out over two things. The first, she discovered she was poisoned and only had four days to live. And the second, was Kai running away. It tore her heart out, but she was determined to see out her days with a smile. She sat up as her phone started ringing. little did she know that this phone call would change her life forever.

"Morning Hilary" Said a kind voice down the phone.

"Morning Rei" Hilary answered, sounding tired and run down.

"You've gotta come over to Tyson's as soon as possible, Kai's left a package for you"

Hilary almost fell out of her bed in suprise.

"W-what? Kai left a package?"

"Yes, and it says "Handle with extreme care" written on it" Answered Rei, sounding somewhat excited.

"I'll be right over" Said Hilary, she ended the phone call and got dressed straight away. She ran down the stairs, put her shoes on and ran to Tyson's as fast as she could.

"There you are Hilary" Said a panting Kenny. "Max, just called me. He said it was important"

"Lets go and see then Kenny" Said Hilary as she opened the door.

"You certainly get dressed fast" Said Max.

"Here, it came first thing this morning" Said Rei, handing Hilary the box. She opened the box as quickly as she could, she noticed two things inside. A test tube with a blueish liquid inside, and a note.

"It's a note from Kai" Said Hilary, her eyes scanning the note. Her eyes widened really quickly. Rei peered over her shoulder to read the note as well.

Dear Hilary

I know you maybe quite mad at me for running off, but I have great news. You know the docter said only a small percentage in the world own the antidote for the poision? Guess what? I suddenly remembered someone who does! That test tube I sent you, it's the antidote. Once you drink that, I'll send over another one to you in two weeks, then another in two weeks and so on and so forth. Keep taking this for seven months and you'll be officialy cured! The catch is, I wont be there for the next seven months. I'm currently in Russia, in return for this antidote, I helping some scientists in their lab with some sort of space program. I'm only doing this for you, that's why I accepted the deal.

Love you Hilary

Kai Hiwatari

"He found a cure?" Said Max, he look at Hilary, she had tears in her eyes, but with a big smile on her face.

"Thank you Kai!" She shouted over and over again.

"I think nows a good time to drink it" Smiled Rei.

"Good idea" Smiled Hilary even more as she took the cap off the test tube and drank it...

Coming up in chapter two: Six months later on Kai's latest mission. Flashbacks of a phone call to Rei and the poisoning discovery and a run-in with the Blitzkrieg Boys

See you then in part Two!