Author Note: Hey everyone this is Alex Sparda Void of Nothing here with a new story. To people who like my other stories sorry about not updating them but I been having some writers blocks that been happening at random, and I was at school for the past 4 months, and I been working on some prototype story that are still in the middle of writing. Anyway this one is in the anime/manga Sword Art Online, which I finish watching earlier this week.

Disclaimer: I don't own Sword Art Online that belong to Reki Kawahara, I also don't own any Devil May Cry Elements that may appear.

Sword Art Online: The Dark Slayer

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A huge castle made of stone and steel floating in an endless sky.

That was all this world.

It took a varied group of craftsmen one month to survey the place; the diameter of the base floor was about 10 kilometers—large enough that the entirety of Setagaya-ku would fit on it. Above, there were 100 floors stacked directly on top of each other; its sheer size was unbelievable. It was impossible to even guess how much data it consisted of.

Inside, there were a couple of large cities and countless small towns and villages, forests and plains, even lakes. Only one stairway linked each floor to another, and the stairways were in dungeons where large numbers of monsters roamed, so discovering and getting through was no easy matter. However, once someone broke through and arrived at a city in the higher floor, the «Teleport Gates» there and in every city in the lower floors would connect, making it possible for anyone to move freely through these levels.

Under these conditions, the huge castle has only just begun to be conquered over the last seven months. The current front line is the 2nd floor.

The name of the castle was Aincrad, a world of battles with swords that continued floating and had engulfed approximately ten thousand people. Otherwise known as...

Sword Art Online

And in part of the MMO world, a man named Kayaba Akihiko, the Game Master of Sword Art Online, looked at his menu window and his eyes widened, the only weapon with its own unique skill set has been obtained. The wielder of the O-katana Yamato had awoken.

The legend of the Dark Slayer has just begun.

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"Fuck!" The word was torn from the lips of the brunette who had just dodge the attack of the lizard man in front of him. He vanish in a black blur, and reappeared a few feet away from his former spot in the same blur of motion, he watched the opponent in front of him and raised the white-cloth katana that was gripped in his right hand, he charged forward, his form once more becoming a slight blur as a dark purple light enveloping his katana, the unique skill for his katana, «Rabid Slash». He reappeared behind the lizard man, who stood its ground as the brunette slowly sheath the blade into its black scabbard. Stopping a inch before the Tsuba met the scabbard, he quickly close the space with a loud SNAP!, and multiple cuts appeared on the lizard man as it gave one last forlorn cry before being destroyed, breaking apart into countless small pixels. This is the death of this world. It is instantaneous and short, a perfect destruction, not leaving even a single trace.

The brunette sighs as he brush his free hand thru his hair, his long bangs lifted revealing amber-color eyes that was underneath. He sits on the grass as yellow sageo that was wrap around the scabbard floats in the calm wind, and thinks about his life till now, well more like almost a month ago when he woke up in a empty grass field within Aincrad with no memory of who he was. Then almost instantly he was teleported to this town where there was about 10,000 other people, each of them in some light armor and with a weapon, from giant axes to small daggers. Then they sky turn red as a a hooded figure wearing a red robe appeared. He called himself Kayaba Akihiko, the Game Master of the game Sword Art Online, this false world where you can leave from, and where if your life runs out, you don't just died in the game, you died in reality. The mad man then told everyone that the only way to escape SAO is to clear all 100 floors. He then gave everyone what he called a 'gift'. A screen had pop up in front of him which was his inventory, and in it was some item called a mirror. It change everyone from their in-game avatars to what they look like in real life. Tall people became short, slim turn fat, and most females turn male... The brunette shiver at that part in his memory. But his mirror was quite helpful, it gave him knowledge about the game, from moves to weapons, and to skills they gain. Either the mirror did that from everyone, or he was one of the 1000 'beta-tester' and the mirror just unlock a part of his lost memories along with his name. Alucard Dākuenjeru(1)

Alucard's amber eyes glance at the shealth blade beside him. He found this blade, Yamato as he recalled, one of the few legendary weapons in SAO, and the only one that gets stronger along with its wielder, about three days after this 'death game' had truly started. He doesn't fully recalled how he found it, but he knew that this was the perfect blade for him.

Yamato comes which its own unique combos, and he also gain along with a unique move list that is called the «Dark Slayer Style» which uses quick movement that is untraceable to enemies, it basically allows the user to teleport towards their opponent or away from them. Alucard had use the the first move he gain with it, «Trick Down». That move allows him to teleport away from enemies attacks, a useful skill, but he can only currently use it 15 times every hour, and once he use all 15 times the user's strength and speed will be reduce to half its level, and they would be heavily fatigue till the recharge time is done.

Alucard shakes his head, escaping his trip down what he has for a memory lane, and stands up. He sighs as he raises his right hand to block the suns rays. Spotting a town nearby which he believes is called «Tolbana». .Alucard begins his walk towards the town for some good rest from his training. A major headache stops Alucard's movement as he grabs his head with his right hand as a part of his lost memories plays inside his mind.

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(Flashback)

At some kind of playground was a younger version of himself appeared in front of Alucard's mind eye. He is about the age of 8 currently. 'So this much of been about 7 years ago,' Alucard thought to himself. Standing beside him was two people, a man and a women who must be his parents, but their faces were blank.

Standing in front of them was a family of three. The adults faces were also blank, but their daughter face was normal. She appear to be about the same age of Child-Alucard, and had chestnut color hair. Her hazel color eyes stare into Child-Alucard's amber ones. She offers her right hand as a greeting with a heart-warming smile on her face. Alucard vision goes dark as his mind eye leaves his memories.

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Alucard's eyes snap open as he quickly rises to his feet. His body was cover in sweat as he breathing begins to get quicker. Closing his eyes Alucard begins to calm himself as he tries to organizes his thoughts. "What happen? Why now all of a sudden? Who was that girl?" Alucard saids to himself. He sighs once again, a small smile on his face. "Well I didn't get any answer from that flashback, but I do know what question to ask." Lifting up his head Alucard looks toward his destination and begins to sprint there.

The future Dark Slayer of SAO adventure has just began, and his legend shall rise along with many others.

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(1): Its japanese for Dark angel, aka one of Vergil's nicknames, seem to fit for the story during my writing.
End Chapter Author Note: Hopefully I did a good job with this, and below here is some extra features about Alucard's level and skills that I would put at the end of every chapter. And please review on how I did.

Level: 23
HP: 4,255 (Did a semi-estimate of how much health you get per level don't freak)
Dark Slayer Style: 294-LV2-Moves: Trick Down, Air Trick-Yamato Skills: Rapid Slash, Yamato Combo, and Aerial Rave
Hand-to-Hand: 202
Searching: 193
Parrying: 200
Tracking: 184
Cooking: 189
Hiding: 184
Sprint: 246
Acrobatics: 241
Extended Weight Limit: 190
Battle Healing: 207
Medicine Mixing: 187
(Skill level was made randomly for what sure be okay at the level)