Author's Note: Hope you enjoy my story!

Disclaimer: I do not own Ben 10, Generator Rex, Sword Art Online, and Fairy Tail


Fairies of the Multiverse

Chapter 1: When Worlds Collide Part 1

Bellwood - Mr. Smoothies

It was a normal day in Bellwood for the Omnitrix bearer Ben Tennyson. Most of the time he would be saving the day, but he had not done any heroic work for a while. Currently he was on a date with his girlfriend, Julie Yamamoto, at Mr. Smoothies. Since their almost break-up and there was no crime, Ben focused mostly on school and his steady relationship.

Things have changed in the last year because not only things have calmed down on Earth, but also the rest of the universe. Ever since the Galvan had given the Plumbers new weapons and better support, Ben was not really needed for any of the missions that previously required his help.

Ben was a little bummed out because of this because he hero career will diminish slowly over time, but he was mature enough to know that it was a change for the better, he also became less of a jerk to his friends and family; life seemed to be turning for the better, intergalactic peace and low crime. Whenever he did not have school or fighting some bad guys he would either relax or go on a date with Julie in which she liked to do.

Sometimes when Rook wasn't there, Julie and Ship, her pet Galvan Mechamorph, would help him in fighting the alien bad guys. Currently Ship was in backpack form, which was a small, black backpack with green circuitry and a green hollow circle in the middle that was on high alert if something was happening around them.

Ben on the other hand had the new Omnitrix Azmuth gave to him after he defeated Diagon, it came included with an evolutionary function which was useful at times, and over the few months he was unlocking new forms as well as some ultimate forms.

Ben was pondering about what has happened in the past few months when Julie noticed and said, "I know that look you sometimes still miss your hero career don't you?"

Ben snapped out of his pondering as he responded, "I do sometimes miss it but it's worth spending time with those who are important." It was true when Julie helped Ben in fighting crime they would spend a lot of time together after.

"Aww that's sweet of you," Julie replied and began to lean in to kiss her boyfriend when-

KABOOM!

"That doesn't sound good..." Ben said somewhat disappointedly that their kiss was disrupted. The explosion sounded like it was a few blocks away. Ben started running and Julie picked up Ship in his backpack form and followed Ben towards the explosion.

When the couple arrived they saw a twenty foot tall, ankylosaurs-like creature with tan skin. It had a black helmet and brown spikes coming out of the sides and top of the helmet resembling a triceratops. It had blue shell-like armor on its back and shoulders with more brown spikes. It had a tail with a mace at the end, and had barrel-like structures on its knuckles, forearms, knees, and shoulders. On its chest was an omnitrix-like symbol except red and 4 vein-like metal prongs on its chest. It seemed to also be carrying a silver cube about four feet in all directions with a socket of some kind on one side, a keyboard and screen on another, and had what looked like solar panels on top, under one arm and walking away from the hole in the building that was a laboratory in Bellwood College.

"ALBEDO!" Ben and Julie yelled at the creature and it turned around and had a smirk on its face.

"I was starting to wonder when my inferior look-alike and the girl with that blob for a pet will show up," the creature called Albedo replied in a gruff voice, "and it seems to be a good to transform into Negative Ultimate Humongousaur to finally get rid of you!"

"We'll see about that!" the Omnitrix bearer replied as he activated the Omnitrix. Scrolling through the holo-wheel of aliens he picked one that seemed to be an advantage he selected it and the black faceplate slid back and he slammed down the core. In a flash of green light, he was replaced by a seven-foot tall, sasquatch-like alien with grey hands and feet, yellow fur and black fur on its lower arms and legs, bolts on the sides of his hands, and 3 horns that looked like a trident on the top of its head. The Omnitrix symbol was located in the center of its green and white belt on its waist

"SHOCKSQUATCH! Okay eh?" The alien said in a Canadian accent.

"Ship, Battle Mode!" Julie said, and the Galvan Mechamorph that was formed like a backpack started to morph and merge around her into a battle suit. In a few seconds she was in a eight-foot tall, black, high-tech battle suit with green circuitry, and a green visor on the helmet.

Negative Ultimate Humongousaur let out a loud roar as he set down the white structure and ran forward transforming his right hand into a bio-cannon, shooting missiles at the two heroes. Shocksquatch and Upgraded Julie dodged the volley of missiles and she countered with energy blasts that fired from her gauntlets while Shocksquatch fired electricity from his mouth. Albedo barely dodged it, firing more missiles at the alien-sasquatch. Shocksquatch jumped up and dodged the onslaught of missiles, came down with a hand smash, creating a small tremor and random electricity popping out of the ground and striking randomly, one of which struck Negative Ultimate Humongousaur and knocked it out cold.

In a flash of red light transformed into a white-haired, pale-skinned version of Ben except the 10 is in reversed on the opposite side on a red jacket instead of green, and as well as a red gauntlet-like Omnitrix on his right hand with the symbol also red, this is the human form of Albedo.

Once Shocksquatch confirmed he was unconscious, he slapped the Omnitrix dial and transformed back into Ben. "Well he didn't put up much of a fight now did he?"

"Yeah, he wasn't that tough, but what is this device?" Julie said as Ship formed back into his backpack form.

Not long after a scientist in his mid-forties with white hair in the style of Albert Einstein ran up to them. "Thank you Mr. Tennyson and madam I don't know what that boy would do if he had my device..."

"No problem." the couple replied nonchalantly.

"I'm Doctor Emmett Brown, and could you do me a favor by helping me get my device back into my lab?"

Ben shrugged, "Sure, I'll help." Ben activated the Omnitrix; he cycled through the icons and found the alien he wanted, and slammed the dial down. In a flash of green light, was standing a twelve-foot tall, muscular red alien with four arms and eyes, he was wearing a black tank top with a big green stripe going down the center. The Omnitrix dial was located on a green and white belt around his waist.

"FOURARMS!" the alien cried in a gravely deep voice, then picked up the device with care and followed Doctor Brown with Julie following him. After a few minutes they reached the lab where Fourarms placed the device on the ground nearby, in which he transformed back into Ben.

"What does this device do?" Julie asked.

"This," Doctor Brown said, "is a Quantum Displacement Generator or QDG for short. I invented it to travel to other universes and with Godspeed—hopefully return."

Ben was intrigued he remembered he'd been to another universe about a year ago, when he had helped a guy named Rex Salazar to stop a monster made of nanites. While Ben was pondering about this he and Julie realized something.

"Wait, 'hopefully' return?" they asked.

"The device hasn't been tested yet," Brown said, "I am still figuring out how to create a way for the QDG to return back to our universe."

"Why would Albedo need a device like this?" Julie asked.

"Probably something to make him stronger or maybe to make a new weapon," Ben concluded.

"Well it is out of his hands," Brown said, "but just in case could you two stick around so that I can give it a diagnostics test?"

The couple responded with an affirmative nod "Sure, no problem," Ben said.

Doctor Brown then hooked up the QDG to a laptop and started typing and said, "When this baby hits one point twenty-one gigawatts, you're gonna see some serious shit."

"What will happen if something goes wrong?" Ben asked.

Doctor Brown replied grimly, "It will create a temporary rift in random universes sending whoever is close to those rifts to the universe selected."

"Will the rifts also affect anything non-living?" Julie asked.

"It will have a small chance of doing so if there is a virtual reality in one of those particular universes," Brown said.

Unbeknownst to them a small red dot in the air was watching them; close up it looked like a dark grey, metallic-skinned humanoid with red circuit-like designs on it. On its back had a pair of red wings; an Ultimatrix symbol was displayed on its chest. Albedo as Negative Nanomech heard everything and was listening and was also curious on what this device was actually made to do.

Brown then started to type on the laptop and running the diagnostics test, and Ben and Julie walked around and watched the QDG wondering if it will explode.

"Something's wrong," Brown said, "the QDG is overloading!"

Ben, Julie, and Ship heard him and knew what that meant; overloading devices equals a big explosion.

"Get out of here, it's gonna blow!" Brown yelled.

Doctor Brown was able to get out through a nearby door; Ben and Julie weren't able to. They didn't have any time to run when the QDG exploded in a flash of white light, and which Ben, Julie, Ship, and Negative Nanomech vanished.

"Great Scott, what have I done?" Doctor Brown asked grimly outside the lab when he heard the QDG explode...


Meanwhile in another and universe...

Manhattan, New York

Today seemed to be a great day for the E.V.O. human hero Rex Salazar. For there was no more rogue E.V.O.'s left in the world because he used the five Meta-Nanites and cured them all turning them back into sane humans. Currently he was walking around the city with his girlfriend Circie on a calm first date and double-date.

Accompanying them was Agent Six, Rebecca Holiday, and Rex's monkey partner Bobo Haha. It has been a few months since Rex had cured all of the E.V.O.s on Earth with the exception of Bobo.

It all seemed peaceful until supervillains started showing up after all of the E.V.O.'s were cured. Since then it had been facing the bad guys, and in spare time relaxing at Providence. It seemed to Rex that it was just yesterday that he had started curing E.V.O.'s for Providence, but today it was a relaxing day with his friends and girlfriend.

"So, what do you want to do today?" Circie asked Rex.

"The circus is here for this week so we could go there," Rex suggested.

"Sorry, circuses and me don't mix," Bobo replied.

"Well, let's go somewhere, it's not every day we get a day off," Holiday replied.

"She's right this may be the only day we can relax," Six replied blankly.

"Says the guy who finally decided to ask out Holiday," Rex replied in a teasing manner.

Six and Holiday then gave Rex a mild glare, "And I wonder, how long it took for you to ask out your girlfriend," Holiday teasingly replied.

"Well...I...uh..." Rex stuttered, trying to think of a good reply while trying not to embarrass himself in front of everyone, but was failing miserably. Everyone responded with a small laugh at Rex's stuttering.

"Well I could have waited," Circie replied and then gave her boyfriend a small peck on the cheek.

"Uh..." Rex simply stated, completely at a loss for words and still comprehending of what just happened blushing slightly. "Well...we could just go to a movie," he had finally said after a few minutes of getting over his shock.

"Why not, let's go!" Circie replied with a bit of excitement in her voice.

When they arrived at the movie theater there was a small rumble, then suddenly a small ball of white light appeared in from of the group. The ball of white light suddenly began to grow rapidly and fluctuate, in which it looked like it was about to explode.

"That doesn't look good," Rex said and he ran in front of the group transforming his right arm into an blue metal gauntlet that generated a blue disk shield, this machine was the Block Party to shield him, Circe, and his monkey friend as they were the closest to ball of light. However, when it exploded in white light and faded, Rex, Circie, and Bobo where nowhere to be seen, much to Six and Dr. Holiday's shock and horror respectively...


Meanwhile in another universe...

ALfheim Online

It seemed to be a quiet sunset for all of ALfheim Online, but it was going to be a day of saying a final goodbye to the strongest swordsman of ALfheim, Yuuki Konno. She was in the arms of her surrogate sister, Asuna Yuuki, being surrounded by thousands of ALO players and her friends.

"So many fairies," Yuuki said weakly, "why are they all here?"

"They are all here to say goodbye because you are the strongest swordsman in this world," Asuna replied, "they wanted to pray for your next journey will be as good as this."

"I'll see you again, in another world" she also said with tears in her eyes.

Yuuki then gave a nod and was looking around at her guild mates and friends and thought. "I did my best to live here and I did." She then started to close her eyes when suddenly a small ball of white light appeared in front of her and Asuna.

Everyone was wondering on what this ball of white light was, in which Yui started to examine the small light object.

"This is strange this isn't even an object of the game," she said.

"Well what is it then?" Kirito asked with sadness in his voice due to the current situation.

"I'm not sure Papa," Yui said with slight worry

Suddenly the light began to grow bigger and brighter like it was about to explode, but no one was able to get out in time. But before it exploded Recon jumped up and ran forward and tried to protect Leafa by using himself as a shield when the ball of light exploded. When it faded The Sleeping Knights, Recon, and Kirito and the gang vanished. In which all of the ALO players were dumbfounded, and started to wonder, "Where did they go?"

In the Outside World

Tokyo - Yokohama North General Hospital

"Doctor Kurahashi look!" one of the nurses cried.

The real body of Yuuki was suddenly bathed in white light for a few seconds. When the light faded her body seemed to have vanished without a trace.

"What, happened?!" the other nurse said, while the other nurse went to the other room to check on Asuna.

"I am not sure," Kurahashi replied also equally shocked and terrified of what just happened, and at the same time the nurse that went to check on Asuna also ran back terrified with more nurses running into the room with here

"Doctor, Miss Yuuki's body has also disappeared!" the nurse said.

"Doctor," the nurses said at the same time, "Mister/Miss, Jun'/Siune's/Tecchi/Talken/Nori's bodies have disappeared in a white light and vanished, the only trace is their Amuspheres which were left behind."

Kurahashi didn't know what to he wondered on how a body or group of bodies would just disappear in a white light and vanish without a trace except of leaving their Amuspheres...

Kirigaya Residence

Both of Kirito's and Suguha's bodies were bathed in a white light and suddenly vanished, leaving only their Nerve Gear and Amusphere behind respectively.

The Rest of Kirito's Friends' Apartments/Rooms

All of their bodies were also enveloped in a white light and vanished, also leaving their Amusphere's behind.


Author's Note: Credit goes to Ultimate 10 for letting me use the QDG and I have used his writing style in combination of Incredible Muffin for reference points to start out writing (I am sorry to do that but still all credit will go to you guys if you ever read this!), and yes I used Doctor Emmett Brown from Back to the Future. I also used the last episode of SAO II to have Kirito and his friends to go somewhere so if you finished SAO II good if you haven't then you need to finish it first. I hope you all enjoyed my first chapter of my fanfic crossover and I sure hope I will see you next time.

P.S. Flames will not be tolerated!

Up Next: Our Heroes end up in a strange universe full of Magic and Wizards?!

Edited: 9/26/16