I don't own Hitman Reborn! (Honestly I always type this to my fics)

Hello~ to tell you the truth, I am working at the Eleventh Theorem of Beyond Verde's Scientific Knowledge. But suddenly, the plot bunny gave birth to this fic, so, I cannot risk losing the idea tomorrow morning! And I guess I really have fun writing Assassin! Tsuna ehehehe~

Chiri-tan here presents you to… a G27X story! (or is it X27G? Ahaha you'll see)

Summary: AU. Giotto doesn't suspect anyone to take interest of the Vongola rings, Vongola clan's heirloom, that belong to him and his friends. He doesn't know the fact that the Vongola Rings are the key to a precious artifact: the Sky items. And the 'Sky Hunters' will stop at nothing to get them. All27 main: G27X.

Warning: OOC-to-Tsuna-only Xanxus.

Let's start~ and I hope you'll like this fic~!

~Codename: Sky Hunters~

Chapter 01: Replaceable.

Why do you care about my life when it was just… a replaceable item?

It was raining heavily. The Vongola House stood ever so lonely on top of the hill. A member of Vongola clan, named Mochida, is taking a harmless stroll in the elegant halls of the House. He is close to the entrance door, and decided to take a detour from his trip to the lounge to look at the painting in the entrance hall. It was a whimsical action he took, that'll change the tranquil night in the Vongola House…

"Yep, this painting is still superb!"

He commented on an abstract painting. It features seven rings with different symbol on them. His boss, Giotto del Vongola, said that for each of the seven rings of Vongola, there is one heavenly artifact to go with them. Mochida had asked about the artifacts, but Giotto just laughed and said that those artifacts 'don't exist' and 'it's just a legend', so Mochida brushed it off.

He immersed himself in the beauty of the said painting and smiled. It has seven different emotions emanating from the picture, so, he likes to admire this thing…

Knock, knock.

A sound of door knocking surprised him. He looked around and notices it was from the entrance door. He waited for another sound, but nothing came except for the drizzles from the heavy rain…

Knock, knock.

When the sound came again, Mochida snapped into reality. The person knocking must've been freezing. It's so cold outside and he made him or her wait. The Vongola House had been, and will always give shelter to people that are lost. Mochida opened the front door, a petite figure with brown, worn-out hooded-cloak, greeted him.

The figure is slender, petite, and most likely belongs to a girl. But Mochida didn't do a thing as to greet her. He blushed at his own imagination of the said person. "A-ano…?" A soft, smooth, angelic voice tingled at Mochida's ears. He desperately tries to hide his lust for the person, and an excessive nosebleed coming from his nose.

"Y-yes, this is the Vongola House. H-how may I help you?" He stuttered.

"A-are… the Vongola rings here?" The figure asked with a tiny hint of his voice that said he was a boy. Mochida gave a small nod and let the figure come in. "You must be cold, it is freezing outside." Yes, seeing how lightly dressed this boy are. "Should I treat you with a cup of co-?" The boy holds out two Glock pistols and points it to Mochida's face. "What are you…?" The boy directed his right gun to Mochida's heart and pulls the trigger.

"I-I am so sorry…" He said it with regret that can be traced from his voice.

He stands at the pool of blood and wear his cold smile. "Now, where are the Vongola rings?" He asked to himself. He stared to Mochida's cold body and furrowed his eyebrows. "I-I shouldn't have killed him before I get him to say the Vongola rings' location…" He childishly pouted. "Oi, isn't that Mochida? Wh-who are you?" A man shouted, pointing his gun at the boy.

"The Sky Hunter… t-t-t-that is who I am." The boy stammered before shooting people that came to his direction.

What if something change your life, even when you don't want anything to change it?

"It's unbelievably noisy outside; I'll go check what's happening." With that, Alaude stands. "Well well, Alaude! I'm sure everything's just fine!" Ugetsu laughed, calming the tense situation down. "You're laughing to much you softie flute-freak!" G blurted. The boss laughed. His friends are really amusing. It's like they were created for each other.

Alaude and Demon Spade never get along, but they still date each other. G and Ugetsu perfectly describe the fire and water, and they too, date each other. And for Lampo… he is a top-class playboy with thirty-two exes, a spoiled young master of a landlord estate. As for Knuckle, he decided to stay virgin because he dedicated himself to God.

As for Giotto, he is still searching for his right person. He doesn't care if it was a man or woman. Just… the right person.

"Well, if it bothers you so much Alaude, I'll check it for you." He stands and headed towards the door. Before he opened it, the door was opened by someone outside. "What is-?" The figure in front of Giotto shocked him. He was bleeding from his head, and he seems to be limping. Expression of horror is plastered across his face.

"Primo!" G ran to his best friends' side. "Gi… Giotto… sama…" The heavily injured man grip Giotto's shoulders tightly. "Wh… what is it…?" Giotto is speechless, and he cannot find any other word to say. "Be… ful… Rings… protect… Rings." With those words being said, he passed away. "Protect Rings?" Giotto asked to himself.

"W-w-w-whoa! Knuckle! I-i-i-i-it's a real corpse!" Lampo hid himself behind Knuckle's back. "May God give him peaceful eternal rest in His side…" Knuckle touches his cross. "Hmm." Alaude opened his eyes with slight interest. "Fufu, did he accidentally trip to an extent where he bleeds?" Demon Spade asked to no one in particular.

"But it shouldn't be possible…" Ugetsu patted G's shoulder. "Yeah, it shouldn't be possible!" He struggled to keep his tears in. "Calm down, everyone." Giotto's soothing voice echoes within the silent room. "Let's go outside and check." Giotto and his friends stepped out of the lounge and checked the corridor.

To his surprise, Giotto saw an angelic figure in the middle of heaps of corpses. It was a beautiful, cute, slender, pale-skinned boy. His eyebrows are furrowed and he changes his two Glock pistols' magazine. Giotto can see a glint of tear from the boy's eye. The brown, worn-out cloak he's wearing flashes, and the boy is already in front of Giotto.

As flamed-eyes met with caramel-brown eyes, Giotto felt his heart thumping. His friends' voice that called to him seems so far away. The angel pointed his gun to Giotto's head. "P-please hand over the Vongola Rings." Heavenly voice filled Giotto's head. But, a tiny shock from Lampo's lightning woke him. "I will not… give it to anyone!" The blond punched the brunette's stomach.

Surprisingly, the angel did not pass out. He touches the spot where Giotto punched him. "I-it hurts…" He closes his left eye, enduring the pain. "W-well… Ricardo-san said that if I ever meet people that are strong enough no to get killed at first sight, i-it should be a courtesy of telling them who we are… right?" The brunette asked himself hesitantly.

"Oi! Who are you? How dare you do this to the Vongola clansmen?" G shouted at the boy with a tone that could make any pirates of the seven seas to beg for such tone. The boy looked at the ground and plays with his cloak before answering. "I-I am Sawada Tsunayoshi, c-captain of the 10th squad of the Sky Hunters, the Un Altro di Cielo aka the Alternate Sky."

Sky Hunters…? They really exist? Giotto thought to himself.

"I desperately need the Vongola Sky Ring… do you…" Sawada Tsunayoshi pointed his gun to the Vongola clansmen. "…have it?" With that question, he charged to their direction. He activates his 'Hunter Sight' special ability that allows him to detect things that are connected to the artifacts. It shows his peripheral vision as gridlines, with no exception to humans. He saw seven different flames emerge from seven different Rings. But, as the captain of Alternate Sky, he only has to find his target…

The orange-colored flames which symbolize the Sky artifacts.

It came from the blond man he saw earlier. He locked his target on the man, and while he is getting to him, Tsunayoshi knocked the other men to the ground, leaving them unconscious. He struck the back of their necks, which is easy with the coordinates embedded inside his peripheral vision when 'Hunter Sight' is activated.

He turned off the 'Sight' before it drains him too much. "I-I need your ring… Vongola." He stammered and trip on his own feet, making his face kissed the ground. Giotto tries his best not to laugh. "I'll… be sure to… tell… Gokudera-kun and… Yamamoto… Rings…" The boy grumbled while his face is still touching the ground.

"You are hopeless, Sawada Tsunayoshi."

Another voice joined Giotto and the angel. The atmosphere around them began to tense. It was like; the newcomer's presence is feared by even the atmosphere itself. "S… Secondo…?" The boy asked, still not getting up. "You used the 'Hunter Sight' again. It was too much for your body to handle…" The man's face is covered in scars. His red pupils warned Giotto to fear his wrath.

"Let's go." He throws Tsunayoshi's slender body to his shoulder, and pointed his gun at Giotto. "Die. Trash."

"Why? Why do you change my life? It would've been better if the two of you never come!" Giotto vent up his anger. His friends, family, underlings, and home have been tainted by blood.

"What if something change your life, even when you don't want anything to change it? Will you grovel like you do know, and curse you fucking unluckiness? Will you blame your own powerlessness to a fucking existence called Fate? Get a life, dipshit."

The man knocked Giotto on the ground and stomped on his back, hard.

"I'll take the key of the Sky artifact."

After that sentence, Giotto's vision is blurred by the flame the man left with.

You are irreplaceable… at least, to me.

He put the sleeping boy on the passenger seat and fastens his seatbelts on. The captain of the 10th squad is most probably the clumsiest Hunter ever lived. But, as the captain of the 2nd squad, he can't just leave the boy alone. Especially when the boy needs him like a person needs air. He drove the car out of the Vongola House, out of the hills he hates so much.

"Is that… Secondo?" Tsunayoshi opened his eyes, rubbing it cutely.

"You troublesome little piece of shit. How many times I've told you not to call me that when we're alone?"

He chuckled and smile. "Then, Xanxus…"

An awkward silence passes through them. Both are trying to create a conversation, but, too hesitant to say a thing. Until Tsunayoshi decides to broke the silence.

"Ne, Xanxus, why do you care about my life when it was just… a replaceable item?" He asked. It's true anyway. If he dies, another Hunter just need to step up and replaces him.

"You are irreplaceable… at least, to me."

Tsunayoshi blushed after he hears the sentence. "Now shut up, trash. Rest more before we reach the Casa del Cielo."

The boy smiled and return to his peaceful sleep. At least, for a while…

Finished~! How do you think? If you like it and want me to continue, please review~ If you think it sucked and you hate it, please review and say I sucked and I'll delete this story~! Your choice~!

Your friendly fangirl,

~Chiri-tan