Uchiha in Sword Art Online

Madara Uchiha Kirigaya opened his eyes to an unfamiliar celling.

Madara: 'Oh, right. I reincarnated in SAO and I am a baby now.'

Let's skip the hole meeting god prologue that is cliche of reincarnation fics and just go to the bread and butter, shall we? (A/N: me is too lazy to come with yet another background for mc :P )

Madara recieved from god a random power that was selected as the Uchiha's bloodline from Naruto-verse, with the bonus of a fuly grown and allways active Eternal Mangekyo Sharingan. (A/N: imagine any sharingan pattern you like for mc's EMS)

How lucky of our MC, isen't it? Well... Sadly he was not a big fan of Naruto, and as such, he does not know a single handsign for jutsus.

And, of course, as he will spend most of his time in virtual reality, he won't be able to use most his sharingan's abilitys. He will have better eyesight, reaction time, the body movement copy ability and his body won't deteriorate from staying in bed for 2 years due to his chakra giving him a good metabolism, but he won't have acess to nothing else when he gets traped into the death game.

But hey, not all is lost! He got Madara's aparence, so he will have a very good hair when he grows up :D !

Madara: '*sigh* At least it could be worse. At least I did not came to this world with absolutely nothing! If anything, Madara's aparence is handsome, my EMS is stuningly beautifull and Madara Uchiha is a badass name. Not to mention that extra reaction speed is allways welcomed when playing games.'

Madara looks arround and see that he is in a crib in a baby room, there is another crib with another baby sleeping peacefully.

Madara: 'Oh, and I also got a cute sister.'

Madara reincarnated in Kazuto "Kirito" Kirigaya's place after the car crash that killed his parents, so the baby next to him must be his cousing and now adopted sister Suguha Kirigaya.

Madara: 'I never understood why Kirito pushed Suguha away after he learned he was adopted. Not something I'll do now that I am the adopted brother.'

Seeing it is still nightime, he fell back asleep.

.

In the morning, Mama Kirigaya went to check on the babies. She changed their dipers, fed them, and played with them throughout the day.

She learned very quick that Madara's eyes are dangerous, as she let her morning toast turn into coal because she was mesmerized staring at the baby's eyes. Only when Suguha started crying, did she noticed that her breakfast was on fire.

Crises averted and new breakfast made, they ate in peace.

Madara: 'I did not even put her in a genjutsu! If Suguha had not cryed and broken mom out of her trance, I would have! Sharingan is ment to be hipnotic, but this is just too much!'

Time went on like this, with people finding it hard not to stare into the Uchiha's eyes. It had nothing to do with the eyes supernatural powers, but it is just so beautiful that people tend to get lost in them.

Throughout the years, the Uchiha practiced with his chakra. It was hard, as he needed to do so hidden from view. He managed to use the tree leaf sticking exercise by sticking them under his shirt, and afterwards, he started to stick his feet to wooden floors to practice the tree climbing version of the exercise. It took years for him to be able to relyably go up walls and ceelings of all kinds, and he was still unable to run on water, beeing only able to walk on it on a modarate pace.

For jutsus, Madara managed to master one: The rasengan. The rasengan was one of the only jutsus that had its tutorial shown in the anime, and, along the sticking exercises, wore the only jutsus Madara knew how to practice.

He could try to make new jutsus, but the chance of blowing yourself up from the inside out is allways there, so the Uchiha decided to just be content with what he has.

Madara:' Breathing fire is only cool if you don't burn your insides trying it...'

When it comes to phisical abilities, the Uchiha exercised like mad.

Well... Not like Guy and Lee from Naruto, as those professional masochists do not deserve to be called humans. But still like mad.

Madara also took advantage of the miracles known as television and internet to use his eyes to copy all forms of martial arts, training routines, gimnastics, swordsmanship, etc that he could find! And this included anime and videogames, as even if some of those moves may not be aplicable in the material world, they may be in the digital world.

His grandpa was so frustrated that the mastery of kendo arts that he practiced all his life was learned by a kid in less than a week, that he banished him from his dojo. The Uchiha was unable to cry when the man died of old age.

Madara: 'In the original timeline he forced Kirito to learn kendo against his will and beated him black and blue whenever he tryed to get away from kendo. The old man only stoped because Suguha stroke a deal to let her brother go: She did both her part and Kirito's part of the training utill the old man died. Only then she could then practice at her own pace. It is true that Suguha likes kendo, but the way that she discovered that is just wrong! In this timeline, the man kicked me out because he coulden't admit that I would surpass him so quick. At least in this timeline Suguha did not had to overwork herself and mom did not had to see her father hurting her children.'

On a happier note, the Uchiha got selected to the beta test of SAO like cannon, and he put the time of beta to good use. Instead of focusing on geting to higher floors and lever up, he made sure to get used to the virtual space, he tested his avatar body, how the stat changes impacted him, how the game physics worked, he studied monster and npc behavior, and overall, made sure that this free training to survive SAO paid off.

At first glance, it can seem like a waste to not try and decorate all of the best farming spots, quests, and etc, however, SAO's map, the flying castle Aincrad, had 100 levels, and during the beta, only the 8th floor was reached. This was achieved by Kirito who was addicted to the beta game and even cheated on it to progress faster! All of that work and his advantage died not only 1/10 into the death game. Now that Uchiha is on the picture and not a guy that is focused on geting to higher levels ASAP, the highest floor reached by the end of beta was the measly 3rd floor! And after the beta ended, Uchiha just used a bit of his allowence to buy info from a info broker about the best stuff the beta testers found.

The beta had been profitable indeed for him. (A/N: by the way, his username is: "Mad-Eye Nin-Nin". mc wanted to give Mad-Eye Moody from Harry Potter a shout out, as his own eyes darting arround in high speed reminded him of Moody's magic eye)

About his relationship with his family, Mama Kirigaya was as distant as cannon and was almost never home. But his relationship with Suguha coulden't be better, in fact, the main reason it took so long for Madara to master the little amount of jutsus he has, was because Suguha just would not leave his company! Not that he disliked her company in any way shape or form, but soon after the beta he just had enought of his unoportunity to train and decided to do something about it.

Madara:"Suguha-chan, there is something I need to tell you, But you have to keep it an absolute secret! Ok?

And when I say 'absolute secret', I mean 'don't say it aloud it even if you are alone', 'don't write about it under any hipotesis', 'don't even hint at it to a pearson you trust with your life', 'don't talk about it even to myself, unleass I give permission to'! This is something I wanted to take to my grave and beyond, but since you are allways with me, keeping this secret from you kept me from paying 99% of the atention I should give it."

Suguha sweatdroped.

Suguha:'There is no way in hell whatever it is is that bad. Why is he overreacting like that?'

Suguha:"S-sure. What is it?"

Madara then turned to the nearest wall and walked towards it.

And did not stop when he reached it.

Suguha's brain only comprehended what was going on when madara, walking upside down on the celing now, came back to her.

Suguha's first reaction was to pinch herself to check if she was not dreaming.

Her second reaction was to poke madara's face all over.

Madara:"What are you doing?"

Suguha:"Checking if you are an alucination."

Madara grabed her arm and stoped her when she was about to try and poke inside his nose.

Madara:"I think this is enough, is it not?"

Madara had a tick mark on his forehead. He could put up with her poking his face, but the inside of his nose was another story.

Suguha blushed a little.

Suguha:"S-sorry."

When Suguha's brain came back online, Madara then explained to her that he had discovered he had some special abilities back when they wore kids, and have been testing and training them in secret ever since.

Suguha:"...But since we are together all the time, you have had hardly any chance or time to practice it, right?"

Madara:"Correct."

Suguha:"So you want me to give you some space to train?"

Madara:"No, you can be arround and whach me train if you'd like. There is no problem with you knowing since you, well..., know.

I wanted to keep my abilities a secret to everyone, but I finaly realized that keeping it a secret from you in particular, was just not worth it."

Suguha:"So I just need to not tell anyone. Ok. But just so you know, I think you should tell those you trust. Beeing too paranoid is not healthy, you know? Even if the secret IS a big one."

Madara:"I'll keep that in mind. But in the meantime, NO records of any form shall exist about this subject, AND you are only alowed to speak about it aloud when IN my presence and AFTER I give you permission to talk about it! If you want to speak with me about it, then wisper the word 'password' in my ear! Is this understood!?"(A/N:password? realy?-_-)

Suguha:"Yes, sir!"

Madara then drop down from the celing and proceeds to end the conversation by huging his sister, a relieved smile on his face.

Madara:"Thank you."

Suguha:"No problem, Nii-san. I'm here for you."

.

(A/N: for his personal mangekyo abilities, I'll give mc one ability to give a body to yui and yuki, something like an edo tensei V2. I've been thinking about something like this: "for every life you cut short who's soul deserve hell's 'special atention', you have the right to bring and give flesh to one soul that deserves heaven into the mortal world, either living or not." AKA for every big bad mc kills, he can resurect one pearson. I plan to resurect/incarnate yui, yuki and her sis, griselda, sachi, etc, make sure to remind me of caracters to resurect cause i can forget about one or two (several* :P ). the names i considered for this ability are (pure/impure wordly encarnation), (hell's sacrate bounty), (holy hell pact), etc

as for the second ability I dunno, so I ask for sugestions)