A/N Writing something new, again, with a brain that is drastically lacking sleep. Although, I hope you find this interesting. ^^

Warnings: Gore, Blood, non-sexual nudity, Dark-themes, violence.

Disclaimer: I don't own KHR

This world is a fantasy, a world with three Planes. Where horrendous creatures of all kinds dwelled in the Mortal plane. The Winged resided in the Upper. And the Damned fought within the Lower.

Those that dwelled in the Mortal plane may not pass into the other planes without dying. Yet those that dwell in the Upper and Lower planes may pass into the Mortal plane for a price; a small treasured trinket, the skull of an extinct animal, gems that hear and see, along with their Immortality.

There is only One who breaks the laws that govern this world unbeknownst to many of the residents. He dwells in all three worlds. How? Well, there are three of him, yet the three are one and the same. The only ones who know of his existence are the leaders of the Upper and Lower planes as well as the current rulers of the Mortal plane.

He is The One prophesised to be able to grant a wish. A singular wish of your deepest desire. And so it becomes a game; who would discover the law breaker first? Who would be the first to make him, break him or devour him?

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Mortal Plane

A small lion cub leaps through the gaps between the crowds, a tuna clutched within his small jaw. His frame is small, underfed, his mane and tail tip of bright orange flame. His fur would be a sleeked gold hue if not for the fact it was covered in small scrapes, bruises and dirt. A creature with a moose-like head, leathery skin, and clawed feet reminiscent of a the reptiles of old was chasing him screaming profanities in the Common tongue pushing folk rudely out of the way.

But the feline is quick on his feet despite the oversized kitten paws and the crowd does not hinder him as much due to the fact he's the size of a cat. So he turns sharp corners, leaping up bins, rusted stairways and ladders to make it to the roof tops, the echoing calls of 'Thief! Catch that damn cat!' follow him as he leaps across a gap, only just reaching the opposite shingled roof before a tile makes him lose his footing. Yelping he hangs over the edge gritting canine teeth as he sinks his claws into the metal water catchment that lines the edge of the roof, using what meagre strength he had to scramble his way up.

The shouts are gone now as he makes his way toward his hideout; leaping over precarious gaps between buildings and scrabbling up slanted roof tops. Ignoring the yellow tape with 'Danger' inscribed on it in big bold letters, he scrambles through a broken window into an abandoned dilapidated apartment building. The sounds of bones cracking and flesh ripping echo in the hollow building, before stopping, the only sounds a soft breath panting in exertion and fatigue.

In the small room that belonged to the window that the lion cub had crawled through, a small, pale, human-like body lay on a dirty mattress. His skin is dirt covered, pale and sickly, bruises and scrapes littered here and there. Malnourished, his ribs stand out under thin skin. Gold eyes with a hint of orange gaze blankly at the grey scale walls. A fish is clutched in his hands. As his breathing evened out, he pushed himself up. Knowing he should eat what he managed to get before the rodents came for it.

Gold ears peeked out of his cinnamon gravity defying hair. And his tail, an orange flame at the end, curled around to his front, covering him for modesty's sake even though he knew nobody would be watching. He tugged out an old makeshift gas stove, lighting a small flame with his tail. And went about cooking his meal. Shivering from the cold he reached over to the side to tug a worn moth eaten cloth over his body.

He had no idea why he had this body of his, nobody he'd seen had ever had two forms, and the only creatures he knew of that had a form similar to his now were the leaders of this Plane; Xanxus and Byakuran. The two leaders were rumoured to have Crossed from the Lower and Upper planes respectively, which is apparently the reason why they had this strange furless body.

But he knew he wasn't one of the ones who had Crossed, otherwise he would remember doing it, wouldn't he? Besides, he was born. He was sure of it. Even though the only remnants to parents he had was a lone silver ring, heavy, with symbols on it that he could not recognise. And his name; Natsu.

Reaching for the freshly cooked fish, he winced as he realised there was another new scrape on his paw -hand, his mind whispered, but he didn't know what that was- and licked the wound tentatively, the copper taste of blood tingling his tongue.

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Upper Plane

A small brunet boy dashed through the streets, white buildings blurring together in his haste. He yelped as he tripped on something he couldn't see, his arms cradling numerous brown wrapped packages. As he tumbled down he threw the packages into the air, wincing at the new scrape that was sure to appear on his hand before lifting his head up and reaching out to catch the boxes, 'plonk, plonk, plonk!' in a neat but precarious stack. The pedestrians watched for a second more before brushing the matter aside. The boy just sighed in relief; it wouldn't do to get Kawahira-ojisan angry at him for bringing damaged goods.

"Yo, Tsuna!" a familiar voice hollered.

The brunet turned to smile brightly at the tall raven haired boy approaching him. "Hey, Yamamoto-kun."

"Maa maa~ Tsuna, I keep telling you to call me Takeshi! You're too polite!" Admonished Yamamoto as the brunet blushed and his gold wings fluttered in embarrassment as Yamamoto grinned. "You okay? That was some fall!"

"Its fine, I just need to get these delivered to Kawahira-ojisan." He replied as he stood up and they started walking together at a more leisurely pace.

"What's in those anyway? Another -what do you call them- 'monkey?' paw or something?"

"Who knows, but the place is getting really cluttered with all these artefacts he keeps collecting."

"Ahaha, but he's running an antique store so it should be fine, right?"

The brunet just grumbled noncommittally, pouting.

"So, how are...the lessons going?"

The brunets face turned downcast as he shook his head in shame. "I really am Dame-Tsuna."

Yamamoto smiled encouragingly, "Don't say that! I'm sure you'll get it eventually!"

The brunet wondered about that, most people started learning to fly at the age of ten, and pretty much everyone could fly by twelve, he was now fifteen and hadn't lifted a foot off the ground. The wings themselves weren't a problem; everyone in the Upper Plane could shrink them to a small size and grow them easily. If fact, his wings were larger than most people's at full size. He wasn't really sure why he couldn't fly, he'd tried flapping them in different ways at various sizes and nothing worked. All he created were huge gusts of wind that blew things everywhere.

Without realising it, they'd reached the store. "Tadaima!"

"Okaerinasai," was hollered from the back of the store. Walking past the numerous display cases and artefacts, they entered the back of the store where a mess and a white haired man greeted them. As Yamamoto went about greeting the older man, Tsuna put down the boxes on top of another stack and went about examining the palm of his hand, wincing as he poked the scrape. He wondered why it wasn't healing like most injuries did.

He headed to the bathroom, examining his plain brown hair and honey coloured eyes as he fingered the ring that hung around his neck; the only memory left to him from his parents. Turning to the wound he first swabbed it with alcohol, wincing as he did so, then stared at the blood welling slowly in his palm. A vague hint of copper on his tongue.

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Lower Plane

There was grunt, and then a body fell to the floor. A brief flash of purple and a scream of agony. Heavy artillery could be heard going off as the sound of explosions rocked the building.

A brunet with blazing orange eyes and brown gravity defying hair stood in the middle of a group of armed men with horns and vicious tails. Some of the men had flames of various colours but only the brunet had a bright orange flame that flickered in the centre of his forehead and on his hands. The brunet's tail looked to be made of bone that extended from his tailbone, the vertebrae getting smaller toward the end before finishing with a large arrow shaped bone. He too had white horns that poked up from his fluffy hair.

He was fighting; slamming a hand through the chest of one man before throwing him into another with enough force to blow them back several feet and into a metal railing, there was a sharp crack as man's spine broke. He burned the face off the next man, grabbing his head and cracking it against the wall, smashing it open and spilling out bits of brain and blood.

All the men were soon met with similar fates. The brunet's face remained impassive as he took the men out with little to no effort, blood dyeing his white dress shirt a deep crimson red. A singular ring that hung around his neck; a keepsake from parents he'd never met, glinted with the light of flames. As the last man was taken down, half his head ripped open from where the brunet had grabbed his snarling jaws, he heard a crackle over his connection.

"Tenth, I'm done here and so is Pineapple-head."

Ah yes, now that the brunet wasn't distracted anymore, he realised he couldn't hear anymore explosions nor screams of agony. He quickly headed to the centre of the room where a slim ornate box stood, opening it a little he grinned widely at the contents before closing it and slipping it into his pocket.

"Great! I've got what we need, let's get out of here before the boss gets back or the goons start recovering."

Climbing into their black surveillance van he was greeted with the sight of worried green eyes checking him over and another heterochromatic gaze that was nonchalant.

"Kufufufu, spilled a lot of blood I see... Yoshi." Mukuro had curled horns the colour of his red eye and a leathery tail that ended with a spade, this type of tail was common among the Damned.

"Don't be so disrespectful with the Tenth, damn Pineapple!" Gokudera had a grey tail, furred and similar to that of a wolf, he also had wolf ears.

"Oya oya, the dog should just stay quiet and do as he's told." And the two delved into an argument as the bomber navigated the streets.

Yoshi sighed; he would have felt bad for the men if he didn't know that they'd probably be out for a few days before recovering. Immortality was a double edged sword. He did wonder from time to time what it'd be like to be on the Mortal Plane, to know that you can't survive getting your heart ripped out or could even perish from a meagre amount of blood loss.

He felt a dull throb coming from his hand and stared at it. Reaching over he pulled out a white cloth and cleaned his palm to find a single scrape on it, he probably got it from splintering someone's bone or something; those were sharp. He didn't get injured that often without it healing straight away, which apparently was an unusual ability for their kind as it still took time to heal wounds. He stared at the scrape wondering what made this one special, running his finger over it as he felt a vague taste of blood spill over his tongue.

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A/N I seem to be a generate-plot-as-you-write type of writer, so I have a vague idea of where this is going but nothing is solid. Except for who's the leader of which Plane. Well, there's three 'Tsuna's' to work with so I'm open to suggestions.

Will there be pairings? Perhaps, I'm still thinking on it.

This is also a tester for me, to see if I can write a fantasy AU. So updates for this would be considerably less than HIC. But it depends on my mood, this fic is meant to be dark.

Also, I'd love to hear of an animal/creature for Enma! Natsu needs a companion for getting into trouble with.

Tell me what you thought of this. Reviews are greatly appreciated! :D