Knight of the Sky

by CFX328

-Discontinued- Thank you to all of those that stuck around. But I am ending this because, I really don't like how I handled the introduction. i just really could have done better. But don't be sad. I plan to redo this crossover entirely. AU plot, OCs and all of that good stuff. The new title of the story is "Test of Courage"

1. Chapter 1

Knight of the Sky Chapter 1: Secret Mission?! Welcome to SAO!

( AN: Hello, my name is CFX328 and I am a brand new author to the site.

This is my first time writing a fanfic so bare with me. I love Hitman Reborn and I just strated watching SAO and I am loving it! I plan to do other crossovers with Hitman Reborn like Final Fantasy XIII, Fairy Tail, One Piece, Kid Icarus and etc. This is the first chapter and I hope you all enjoy it. :] )

Disclaimer: I do not own Hitman Reborn or SAO.

"OII! Reborn!" everybody's lovable brunette Tsunayoshi Sawada shouted. "Shut up, Dame-Tsuna." Tsuna's sadistic Spartan hitman tutor Reborn threatened point a gun at his face.

"HIIE! I'll listen!" Tsuna shrieked. "Good." said Reborn with an amused smirk.

In school, Tsuna received a letter from Reborn by his best friend Takeshi Yamamoto.

The letter said….

'Dear Dame-Tsuna,

If your reading this letter than your alive. Come home to your room immediately for business.

Or else.

Reborn'

Tsuna of course did what he was told because he didn't want to die yet. Tsuna excused himself from class to go home and see what Reborn wanted. All of his friends said they're goodbyes. Yamamoto gave his usual cheery good-bye. Kyoko said good-bye and gave him warm smile that made him blush a little bit. Hana just really didn't care as she just lazily waved him off which made Tsuna sweatdrop. Gokudera was the worst of the four. He was practically on his knees begging Tsuna to take him with him as Tsuna tried to stop him from embarrassing him. When Tsuna was out the door, Gokudera tried to run to him only for the door to slam in his face. As Tsuna went out of school he sighed in relief that Hibari had not caught him and "Bitten him to death". Tsuna just hoped that whatever Reborn prepared for him, it wouldn't be a living hell.

Now we are here in Tsuna's room.

"Alright listen up, I need you to do me a favor." Reborn said in a serious tone. "F-favor?" Tsuna said uneasily. "Yeah, listen carefully. I am sending you on a secret mis-"

"REBORN!" a voice shouted. Tsuna turned to see Lambo, Tsuna's annoying Vongola lighting guardian from the Bolovino familiga on a tree branch outside aim a pink grenade at Reborn. "L-Lambo?!" Tsuna exclaimed. 'Why did he have to show up?' he thought as he cried anime-tears. "The Great Lambo-sama has come to get revenge on you!" the cow child boasted pointing at Reborn." "Prepare to d-" "Were busy, get lost." Reborn cut him off. He then pulled out a large control pad with a big red button in the middle and pressed it. A mirco bomb planted under the tree branch started to beep loudly until the tree branch exploded, sending Lambo flying into the air until he turned into a star.

There was a moment of silence. 'How cruel.' Tsuna sweatdropped. "Now that the brat is out of the way…." Reborn said effectively snapping Tsuna out of his thoughts. "Back to what I was going to say, I am sending you on a secret mission." Reborn continued. "A s-secret mission?" Tsuna said in disbelief. He really didn't want to be in another random conflict that could put his friends and family at risk. The Varia, Millefiore and Simon families were enough to deal with.

"There is not much time to explain so pay attention." Reborn said getting Tsuna's full attention. "You will be going to ….a new world." Reborn finished. "A…new world?!" Tsuna muttered shocked beyond belief. 'But that's impossible right… right!?' he questioned himself inwardly, still shocked at what he was hearing. He then calmed down a little bit remembering he had technically went to a different world before. Well a parallel future really. "I know it's pretty hard to believe but this is serious." Reborn said seriously. "But what kind of world is it?" Tsuna questioned wanting to know more. "I don't know but I need you to defeat one man for me.

"You need me to defeat someone?" Tsuna gulped nervously hoping the man wouldn't be some power hungry overlord. Reborn shadowed his eyes with his fedora that his partner, Leon was on top off. "His name is…" Reborn started. Tsuna leaned in anxiously to hear the name of his target. "Kayaba Akihiko." Reborn finished. After that there was nothing but silence.

"Kayaba….Akihiko." Tsuna muttered to himself. This was his first time hearing that name but I seemed familiar to him. 'Have I met this person before?' he thought. "But why do I have to fight this person?" Tsuna asked curiously. "That's not important right now we're running out of time." Reborn said quickly. Tsuna was still a little suspicious but just shrugged it off. "Here, put this on." Reborn commanded as he threw something to Tsuna. Tsuna comically fumbled with the item before regaining composure. He looked at the item and went wide-eyed in surprise. It was the Aracobaleno pacifier of Sky. This Item belonged to Yuni who sacrificed herself help Tsuna defeat Bayakuran. The only difference was that it had a chain link going through the opening make a chain necklace. "This…is Yuni-chan's" Tsuna exclaimed in surprise. "The pacifier will protect you from the effects of the portal." Reborn explained.

"Oh, okay." Tsuna said as he put on the chain necklace. "Wait….WHAT!" he double took. He looked up and his eyes almost literally popped out his head at what he saw. It was Reborn with green bazooka that was ten times his size. The fact that the baby was able to carry that was amazing. "HUGE!" Tsuna exclaimed. "This was specially created by Verde, it can transport someone to different places. "But is it really necessary for it to be that big?" Tsuna deadpanned. "Yes, it is now get yourself ready."Reborn said "Wait! What about the others?" Tsuna asked worriedly. "Don't worry about it, I'll take care it." Reborn assured. 'Why do I have a bad feeling about this?' Tsuna thought as he shivered looking into Reborn's emotionless eyes.

"Mission time." Reborn said getting Tsuna's attention. "5…4…3." He started. "W-w-wait Reborn I'm not ready yet!" Tsuna exclaimed flailing his arms around. "2…1…" Reborn continued. "HIEEE!" Tsuna shouted as he tried to run but he comically triped on nothing. "Ciao" Reborn finished as he pulled the trigger. A big black ball of matter flew out of the bazooka. Before Tsuna could scream again the ball of matter sucked him in. The ball began to shrink until it was gone from the atmosphere. Tsuna was gone, and now a new adventure awaited him. Reborn's eyes were shadowed as he stared at the floor. "Good luck…my student." he said in a serious tone. He then smirked. "Who knows? Dame-Tsuna could find a girl worthy enough to be his wife." Reborn chuckled as he walk out of the room.

(Unknown Area)

Tsuna opened his eyes to find….darkness. Not a speck of light to seen. Just darkness.

'What has Reborn gotten me into?' Tsuna thought as he cried anime-tears. He couldn't move his body but he felt himself being pulled down. He then realized he was falling. "HHHIIEEE! I'm gonna die!" he inwardly panicked. He suddenly felt a warm glow and his body allowed him to move. He looked down for the source of the warmth to find that the sky pacifier was glowing. "Is this what Reborn was talking about?" Tsuna said confused as he could now talk. Another light suddenly shined behind him.

'Huh?!' Tsuna thought as he turned to the light. It was then he realized the portal has open. 'But where am I going?' he thought to himself. He squinted his eyes to hopefully get a better view. Tsuna saw a white room with multi-color walls. He could also vaguely see people there. It looked like they were….fighting. He then realized something. "Wait a minute that looks like a far drop!" he exclaimed as he got closer to the end. " HHHHIIIIEEEE!" he screamed before being engulfed in the light.

(Aincard)

We now find ourselves in the world of Aincard, home to people who play the popular VRMMORPG "Sword Art Online". A large black castle-like structure in the sky over a vast landscape of forests, oceans, tundras, etc. The castle has up to 100 floors, each with a different and challenging boss. Inside the castle on the very first floor was a large group of people in front of a big bronze waiting to go in. But a man stood in front of the door blocking them from entering. Said man was the leader of the group. He had long blue hair that came down to his shoulders. He had ocean blue eyes that held pride and authority. He wore a bronze armor set with arm guards over a blue tunic. He was helping ever one get prepared for something big.

"Everyone, listen up!" he said getting the attention of his companions. "I only have one thing to say." He continued. "Let's win!" he finished raising his hand in the air. Everyone in the group got themselves mentally prepared for the challenge that awaited them. A boy with short black hair and grey eyes looked over to a young girl that seemed to be completely covered in a red cloak. The mysterious cloaked girl looked back and nodded confirming that she was ready. "Let's go!" the blue haired man shouted as he slowly opened the door leading the group in. They all saw nothing but pitch blackness. As they got closer they could make out a figure with glowing red eyes that wanted to kill. The leader was the first to go in. As he and the rest of his team walked forward the room suddenly illuminated. Weird rock formations were in the walls that lighted up with multiple colored, almost like a rainbow.

Then, a large figure suddenly jumped into everyone's view. The beast was like some sort of humanoid kangaroo but also looked like a humanoid rabbit. It had a skin color that was as red as blood. It wore large purple shorts and had a weird tattoo on its belly. The tattoo was a green diamond with a red diamond inside.(AN: I am not the greatest with descriptions, but I will do my best to put a lot of detail into new characters and such. Anyways, continue the story and sorry for the interruption.) The thing that got everyone's attention was that it wielded a large hand-axe and shield. A grey bar popped up above its head as it let loose a powerful roar. Its name was IIIfang the Kobold Lord. Then, three flashes of light appeared in front of the beast and out came three smaller creatures. They were covered in Knights armor and they wielded big duster-like swords.

The smaller beasts charged forward followed by IIIfang.

The blue haired man pointed his sword at the incoming enemies.

"COMMENCE ATTACK!" he shouted as his men(and woman)charged into battle. Both groups charged closer and closer until they finally crossed blades

BOOM!

The blue haired man's team were holding there own well against the monsters. "Squad A and C! Switch!" he ordered. Squad A switched places with each other to face IIIfang. IIIfang then got ready to swing its huge hand-axe at them. "It's coming!" the man with blue hair warned. "Squad B, block!" As the beast brought down its hand-axe to cleave someone in half, a member of the human team blocked the axe causing IIIfang to be stunned long enough for someone to come in and send a powerful slash damaging the beast. "Squad C, stay on guard and prepare to switch in!" he commanded. A member of Squad C went into position. "Now! Switch, draw and prepare to attack on all sides!" he ordered. "Squads D, E and F! Take care of the Sentinels!" "Roger!" said the boy with black hair as he ran up and slashed a Sentinel away. "Switch!" he said as he backed up to let the red-cloaked girl go ahead in front. "Number 3!" she shouted as she charged at the Sentinel with her teal Raiper at glowing with power ready to strike. She then thrust her blade forward so at the beast, it looked like she didn't move her arm at all. The black haired boy watched in amazement. "Good job" he quietly complimented. A Sentinel tried to sneak up behind him to strike only to be slashed in half by the black haired boy. IIIfang suddenly let out a loud roar as its HP was getting low. It then threw away its hand-axe and shield.

"Looks like the information was correct." A member said. "Stay back!" the blue haired leader shouted. He then ran by all of his teammates. "I'll take care of this!" he assured. He stood in front of everyone, his shield raised and sword charging up energy. The boss then did something unexpected, it pulled out a large black nodachi. The black haired boy gasped. 'That's not a Talwar that's a nodachi' he thought. 'It's different from the beta test!' "Don't!" he shouted. "Jump back as fast as you can!" he continued but to avail. Unfortunately, the blue haired leader already charged at the boss. IIIfang leaped high into the air, bouncing off of walls until finally landing a devastating slash on the blue haired man. He cried out in pain as he was sent flying back. But the beast didn't end it there, the boss swatted the man away with the flat side of the nodachi. " Diabel!" shouted a member to the man now known as Diabel. As he finished the boss landed between all of the men and let out a loud roar stunning all the men with fear. "Diabel!" shouted the black haired boy as he ran to Diabel's side knelling. "Why did you try to go at it alone?" he questioned as he pull out a vile of potion to heal Diabel. Before he could however Diabel grabbed his hand stopping him. The boys eyes widened in surprise.

"Your…a beta tester too…Wouldn't you know?" Diabel said struggling to talk. The boy then finally realized what Diabel was saying. "You were after the last attack rare item bonus." The boy concluded. "You…you were a beta tester too!" Diabel suddenly smiled warmly at the boy. "Please…the boss….defeat the boss." he pleaded as his body started to glow. "For everyone's sake." That was the last thing he said before he shattered into millions of fragments, disappearing in the air. The boy and his teammates just stared in shock. The boy then got up and glared at the boss. The girl in the red cloak then went to his side. "I'll go too." She said. "Thanks" he said as they got ready. But just before they were about to charge….

"HHHHHHIIIIIEEEEE!" a loud scream stopped everyone in there tracks, even the boss stopped to look around for the source. Suddenly a large black portal appeared on the ceiling, surprising everyone. That's when everyone found the source of the noise. A figure fell out of the portal, comically flailing his arms around as if the person was trying to fly. As the figure landed a dust cloud form over the figure, obscuring everyone's view. Everyone minus the boss was shocked to see a teen, no older than 15 with gravity-defying brown hair. He had warm chocolate brown eyes filled with kindness. He wore a blue hoodie with the number 27 printed on it, green pants and orange sneakers. It was our surprisingly powerful friend Tsunayoshi Sawada. "Ow, ow, ow!" Tsuna muttered rubbing his sore bottom. "Stupid Spartan tutors." He sulked crying anime-tears. He quickly sat up realizing he was not the only person here and people were staring at him. "A-ano…" he stuttered. "H-h-hello." He waved awkwardly at them. Everybody else couldn't help but sweatdrop at his sudden entrance. As Tsuna was getting nervous by their stares, he quickly remembered something he needed to ask. "A-ano, do you happen to know where…" Tsuna stopped when he felt a large shadow looming over him. The figure bent down and blew some air at Tsuna causing him to comically fell forward like a tumbleweed. As Tsuna got up he started to sweat immensely as he slowly turned around to see IIIfang's growling face just inches away from his. Tsuna's eyes almost literally popped out of his head. "HHHIIIEE!" he let out one of his "manly" screams and started to run away. IIIfang let out a roar as it began to chase after Tsuna, swinging its large Nodachi at him. It was practically a game of cat and mouse. The group that watched all thought the same thing. 'What the hell?' they thought in unison. "SAVE ME!" was what Tsuna shouted before he comically tripped on nothing. He quickly recovered but it was already too late as IIIfang was about to bring down the Nodachi.

CLASH!

CLANK!

Tsuna's eyes widened as he was saved from the strike. His savior was revealed to be the girl in the red cloak who parried the monster's blade before it could touch Tsuna. "Are you alright?" she asked worriedly. "H-hai, thank you." Tsuna said greatfully. The boy with black hair ran to Tsuna's side. "We'll take care of this, just stay back." He commanded. "W-wait, I can help you…" Tsuna assured but the two of them had already charged. 'I have to help somehow.' Tsuna thought. He went in his pants pocket to get his gloves and pills, but they weren't there. He panicked as he remembered something.

(Flash back)

"This was Specially created by Verde, it can transport you to different places." Reborn said as he pointed the bazooka at Tsuna. "Get ready, 5…4…3" he counted down. "W-wait Reborn I'm not ready yet!" Tsuna exclaimed flailing his arms around.

(Flash back end)

'Dammit, why now?' Tsuna thought. He then heard the sound of metal clashing. He turned to see the black haired boy parrying a slash from the boss, then the girl in the red cloak came in to stab it. "Asuna!" Tsuna heard the black haired boy call out to her. The girl now known as Asuna barely dodged the downward strike from IIIfang. The beast managed to cut off her cloak to reveal a veery attractive young girl with hazel brown colored hair and orange-cream colored eyes. She let out a battle cry as she sent a devastating stab to the boss, sending it flying away. "S-s-sugoi!" Tsuna said with admiration in his eyes, and also a slight blush crept up on his cheeks. The black haired clashed blades with the beast, skidding backwards allowing Asuna to get another stab in. The boss then charged at Asuna, only for the black haired boy to come in and block all the strikes. IIIfang then went for a diagonal slash, at the same time the boy was about to counter with his own slash. But at the last minute the beast moved its blade out of the way causing the boy's blade to miss. "Shoot" he cursed as the monster slashed his stomach sending him flying into Asuna, making them both fall to the ground. As they recovered they looked up to see IIIfang in the air ready to bring down its Nodachi. "Oh no!" Tsuna shouted as he ran up to help. "Oi! Get back!" he heard a member of the team yelled but Tsuna was already gone. 'I'm not gonna make it !' Tsua panicked as he kept running towards them.

Suddenly, everything froze.

The players, Asuna and the black haired boy and even the boss was frozen in midair. "W-whats going?" Tsuna said confused as he looked around. "Do you wish to save them? a voice echoed out startling Tsuna. "W-w-who's there?" Tsuna asked slightly afraid looking around for the voice. "Do you wish to save those two, Knave?" the voice said implying Asuna and the black haired boy. Tsuna thought about it. He really didn't know what was going on, nor did he know if he could trust them. But his trustworthy hyper intuition told him to help them. Plus, those two saved him, it wouldn't be right to just stand by and watch them get hurt. After a couple minutes, Tsuna made up his mind. "I want to save them with my dying will." Tsuna said in a serious and determined tone. "Very well, I will lend you my power and we will be partners form this day forth, use it wisely Knave" the voice said. "Thank you…ano…" Tsuna started. "My name is Caliburn, Knave." The voice now known as Caliburn said. "Thank you, Caliburn-san" Tsuna said greatfully before being engulfed in light.

As IIIfang was going to slash down, Asuna was about to try to block when suddenly….

CLASH!

(Cue Theme: Tsuna Awakens)

Asuna eyes widened in surprise at the sight in front of her. It was Tsuna who had blocked the strike with a sword of his own. The weapon was a broadsword with a long sliver double-edged blade. It had a golden hilt that looked like horns on the sides. In the middle of the guard was a golden circle, in it is what looks to be like a face. Also the handle of the sword is white. It was the blade of legend, Cailburn. "AAAAARRRRGGGGHHHH!" Tsuna cried out as he parried the blade, knocking IIIfang back in the process. "You.." the black haired boy muttered. Tsuna turned around to face them. "Of course I had to help, it's the right thing to do right?" Tsuna said gently with a warm smile that caused Asuna to blush a little bit. "T-thank you." she said focusing back on the situation at hand. 'What's wrong with me?' she thought. The boy remained silent but nodded thankfully. A Solider then came up to them. "Nice job kid." he complimented Tsuna. "We'll hold it off until you recover!" "T-thank you" Tsuna stuttered. All of the soliders rushed at the boss slashing at it. IIIfang just blocked all of their attacks, before slashing all of them away. The beast then jumped into the air ready to finish them off.

"Watch out!" the black haired boy shouted as he got up quickly running to help. Just before the monster could do damage, the boy meet it in the air. "I got you first!" he shouted as he sent a slash to the bosses back sending it plummeting to the ground. As the boy landed he chased after the boss. "Asuna!" he called out getting her attention. "Let's finish it together!" "Roger!" she affirmed running besides him. As the boss was starting to recover, Asuna and the boy got closer and closer releasing battle crys. The boss tried to slash them only to be parried by the boy followed by Asuna who gave it a powerful stab. The boy then slashe slashed diagonally, cutting the bosses stomach. "AAAAHHHH!" the boy shouted as he ran is blade up the up the middle of the boss creating a shockwave.

BOOM!

IIIfang let out a pained roar as it strated to glow brightly. It then suddenly turned into fragments of data, disappearing in the atmosphere. Everyone was dead silent. 'S-sugoi!' Tsuna thought amazed. "We…" someone stared. "We did it!" the person shouted as everyone strated cheered happily.

(AN: Let just cut to the chase, this is the first of many chapters. I will also have custom themes in the story. The main pairing will be TsunaxAsuna and guys can decide the pairing for Kirito. And finally please give me your honest opinion of the chapter. This is CFX328 and have yourselves a damn good day! :])