AN: This is a mainly 3327 story, with side 27 pairings.

Disclaimer: I do not own KHR!

Prologue

Namimori, Japan: 9 years ago, near a sushi shop two little kids were running hand in hand in the moonlight.

"Onii-chan! We can't, we'll get in trouble!" the girl laughed knowing her efforts would be fruitless.

"It's just a little bit farther! Going back now would ruin coming this far!" the elder of the two spoke with a bright smile. "Right, Kyoko?"

Kyoko sighed, her brother always looked danger in the face but this was too much, "Right, Onii-chan." Her words betrayed her.

Their eyes widened as they turned a corner.

There was blood everywhere. Two men were covered from head to toe in wounds. One was standing, he was pretty tall and wore a black suit, tie and sunglasses. He had a gun pointing at a man who was lying on the ground. The kids recognized this man however, he was the kind owner of Take-Sushi, a sushi shop their family somewhat frequented. He looked too beat up to even move.

"Yamamoto Tsuyoshi. You are much stronger than they gave you credit for, at least an S ranked assignment. It's too bad we'll never see your swordsmanship again, a real loss that." The man coughed out blood as he pulled back a safety lock on his gun.

"KYAAAAAA!" Kyoko screamed, running out in front of Tsuyoshi,

"KYO-mphf!" Ryohei started only to get cut off by a small hand clamped over his mouth. He struggled in horrid panic, 'KYOKO! I NEED TO-SHE'S GONNA-!'

"DON'T HURT HIM HE'S-!" A shot rang out. Little Kyoko was shot right in the forehead, "...a...good guy..." she fell to the ground blood seeping out of her little body, anyone could tell she was dead at a glance.

Tsuyoshi's eyes widened he knew this girl he also knew that wherever she was her brother was as well, he stole the quickest peek he could without alerting the man to the other's presence. He noticed them immediately, one struggling with all his might and the other holding him down with just as much force, 'that's my boy, just a little longer...'

His glare sharpened to ice, "Why?"

The suited one laughed, "Are you kidding? To leave a witness alive is the number one mistake newbie's

make, I'm not about to make a beginner's mistake."

With amazing speed the man thought to be as good as dead rose up, sword in his hand. Startled, the man shot right before getting stabbed. The sushi chef's dead body pierced through the man's heart one last time, as if the sword itself would not forgive it's wielder for dying before killing the one in front of it.

"H-Ho...w..." That was the last sound ever to come out of the man's throat.

All of a sudden the boy broke out of his hold, he ran up to the little girl, "KYOKO!" he shook her violently, his grip strong enough to break her arms, "KYOKO!"

"It's no good" his previous captor cried, "She won't be..." Wails emitted from his throat.

Ryohei dropped Kyoko to the ground, "K-Kyoko...?" he froze, unable to accept what had happened.

The boy beside him cried and he didn't move for what seemed like both hours and seconds at the same time. He went over to the girl, placed his hands on her arms, and that little contact snapped young Ryohei back to reality, "LET GO OF HER! WHY'D YOU STOP ME? ! I COULD HAVE-"

"YOU COULD HAVE WHAT? !" The boy yelled, "IF DAD COULDN'T, THEN WHAT COULD YOU HAVE DONE? ! IF WE TRIED ANYTHING-w-we'd just get in the way, and add to the amount of dead people."

Ryohei backed up, tears started to waterfall by themselves, this boy lost someone close to him too, this was hard for him too, he wasn't the only one... He had to face the facts, if that boy wasn't there, he'd be dead too, if that boy could keep collected, he could too.

And yet he couldn't bring himself to say thank you, he couldn't even bring himself to apologize, before he even knew what was happening he whispered, "So what do we do now...?" He looked down, tears escaping one by one, his fists clenched.

"We hide the bodies. Nobody can know. We have to hide as well, no one can know I lived. And with your dead sister, they can't know you lived either."

The boy smiled a sad, dead kind of smile, "My name is Y-Yamamoto T-Takeshi, pleased to m-meet you."

"I'm Sasagawa Ryohei..."

The kids were only 5 and 6 when this happened.

The two boys hid and trained together for the next two years. Each other being the other's pillar of support, the only thoughts that plagued their minds were, 'If only I'd been stronger.', 'I shouldn't have left', 'Never again' and 'I need to stop this'. Revenge plagued their every thought, the only thing that coped them was training, which they spent all of their time doing.

By the time the two years were up they were incredibly well trained hitmen. Ryohei was scouted at 8 and it was then that he realized he had to start taking down the mafia from the inside, take down all the heads first. He no longer had to hide who he was and he swore to never again lie about who he was. He was proud to be Ryohei Sasagawa. Yamamoto found a master to continue teaching him his father's sword, once he was strong enough he would face the mafia head on, and he wouldn't hide who he was either.

AN: And there you have it, the backstory parts over, next chapter is present day.