Hello, this is my first xenoblade fanfic so I'm hoping is for your liking. It won't have any spoiler from the game and is not going to follow it either, is an original story with its own things and plot points. Also I'm taking liberties with the lore and canon for the story.

This fic is a harem, the first two will be the xenosaga blades: Kos-mos and T-elos. I'm planning on adding more blades but not for the games, rather, from other series like 2b or Camilla.

If you have a suggestion about a blade, post it and the one who has more votes win.

Chapter 1: The legendary Blade

It was a beautiful day, the sun was shining all over the cloud sea and he was inside of it. It was his job as a savager, to dive into the deeps of the ocean. Sometimes he found some wealthy stuff but most of the time it was just useless junk.

Today he was diving where an old ship have sink two weeks ago, thankfully no one died but they needed to retrieve all the pieces that they could be save, therefore, a savager's job.

After pulling the last string he activated the machine that pulled them to the surface. It was a big catch, the engine of the ship, while not functional, could still be sold by a good price.

"Rex, did you finally catch something?!" A big raunchy voice screamed to the savager. It belongs to a gigantic beast that he was currently using as a vehicle. He was a Titan, a creature that Humanity used for everything.

This one was a small titan compared to others, his name was Azurda.

"Nothing big, Gramps. Just an old engine, I could get 3000 gold for it."

"That's it? Nothing else?"

"I could come back and try to find something else."

"Do you want to try somewhere else?"

"Hmmm, can you go to the north? We could try to look at the merchant route."

"Alright."

Azurda was the closest thing he ever had to a father figure, he had been taking care of him since he was a child. He help him to travel, helping him to go savaging and he was also some kind of landlord of him

But that wasn't important, if they didn't found things to sell they couldn't sell then Corrine and the other children wouldn't have enough money for this month. He needed to find something quickly. The merchant route could help them, a lot of merchants used them to transports their goods all the time but sometimes they get into problems, making their ships sink.

Maybe they could get something from it.

The merchant route was 12 Km from their previous location, if their lucky enough they could get some engine part of a sink ship. Perhaps even some of their goods!

Travelling to the route took Gramps about fifteen minutes, thankfully no one was using right now. So they could dive in without concerns.

"Well…here we are."

"Yeah, okay I'm diving in, Gramps."

"Be careful."

Rex equipped his helmet once again, he jumped into the cloud sea. The boy needed to dive very deeply if he wanted to find something with value, the merchant route was a common place for Savagers, meaning that it was constantly been looted. But the best stuff could be found if you dare to deep in.

The problem was that the deeper you are the harder is to move, the pressure of the water could hurt you: Headaches, lack of movement, hard breathing, nosebleed, those were some of the symptoms that someone could get if they went down here. Heck, his head was starting to hurt.

Rex looked around, he active his light to search something. Most of the ships were already looted or they were junk, like it was told, this place was constantly looted. Maybe it wasn't something…

…Or is it?

His light was been reflected by a clean object, he thought at first that it was a broken mirror but he could see that it had a cubic form. Was it worth? Well, he was already here so it wouldn't hurt him to look.

Swim to that thing was complicates, hard movement was one of the problems of being this deep. Getting closing to that thing, Rex could see that it was smaller than it looks like. "A box?" It had a lock and it was the perfect size to be one, maybe it was a good that some merchant transported?

It was in very good shape for being underwater, the materials were quite good but it wasn't outstanding, although it contents could be sold for something.

He pulled his rope and active it so he could ascend.

"Welcome back, did you find something?"

"A box."

"A box? What is in it?"

"Don't know, let's find out." Rex opened the box, it was quite hard but he pulled it out. "Holy crap! It's a core crystal!"

"You're serious?!"

"It's a core crystal, gramps!"

"Don't touch it! We don't know if you are able to synchronise with it!"

"I'm not stupid, gramps. I'm not touching it." Core crystals were one of the most value objects in the world, if you were able to synchronise with a core you will get a Blade. Blades were living weapons, perhaps the most powerful weapon in all Alrest. Yet, not everyone could be a Driver (A blade master), if you touch a Core Crystal and you're not able to synchronise with it you will probably get heavily injured or even die.

So touching the crystals was off hands. "Still, it's odd to find a core crystal. I haven't hear any news of a ship transporting core crystal missing."

"Me neither, it will be well known if a Crystal shipment went missing. Perhaps it was a unique item."

"Like a Rare blade?"

"Probably, core crystals are usually transport in boxes of at least 20 crystals. This one had a box all for itself."

"So, it's a big one, huh? But if that's true, again, why no one is looking for this or why we didn't hear about a missed rare core crystal?"

"Perhaps someone doesn't want to reveal its existence."

"Who would do something like that?"

"Plenty of people, Rex. They are many Rare Blades that they are considerate as a threat to people, once I heard about this Blade from Tantal that her power was so big that it killed her own driver."

"Well….more reason to never touch this thing." While he was curious if he could become a driver, he wouldn't risk his own well being. "Should we bring it to Bana?"

"You're seriously asking me that?"

Bana was the owner of the Argentum Trade Guild, he was a big Nopon, perhaps the biggest he ever saw. Bana was well known to be one of the greatest Merchants in Alrest, people from all over the world worked with him, even empires. As a business man, he was a good model but as a person…well, it was a reason why he became the Chairman.

"Yeah, you're right. He will probably sell it for millions and we won't even get a coin from it."

"I'm more concern of the nature of that Crystal rather of what kind of profit we could get from it."

"Me too, then…what should we do?"

"We hide it, for now. Someone may be looking for that thing and we don't know their intentions. The best action is to give it to the Indoline Praetorium, they will know what to do with it."

"If you say so…"

"Now, hide that and let's head back to the guild. We still have an engine to sell."

Azurda finished and turned his back, after finding this thing there was no point of searching more objects. Someone might have known about the core crystal and was trying to find it, they couldn't risk get into a fight.

Rex get inside the warehouse he build on his back, as a salvager he needed all types of equipment to work. He sit down on the only bed he had inside and stare at the box.

It was quite weird that this box was more durable than the actual ship he found, like Gramps said, the crystal was a rare one and that was enough to give it this kind of security.

Still, what kind of Blade it harvests inside that it needed to be transported in secret? Maybe it was one of those Blades that were considerate as the Jewel of a kingdom, but if that was the case then it would have been a headline.

Regardless of what it was, he needed to hide it from Bana. A part of him wanted to touch it and see what was inside of it but he could die because of that, even if he was capable of synchronise with it that didn't mean that he was able to use his new Blade properly, it was a rare crystal for a reason.

The boy sighed, he really wanted to be a Driver and travel the world, saving people and do heroic things alongside his blade.

That would be nice.

They reached the Guild at sunset time, the travel took more than they anticipated. Thankfully the guild was still full of people, meaning that someone could buy this engine.

"Okay, I'm going to give my report to the boss and see what we can get for the engine."

"Don't forget what we talk about."

"I won't, trust me."

Rex get out from his back and landed on the port, some of the workers recognise him immediately. "How you doing boy?"

"Hey Rex, you coming with us tonight?! We buy this one thousand gold wine!"

"Later, guys. I have to talk to Bana, also I'm short of cash so I really need to sell what I get."

"Sure, see you later, buddy!"

The boy was a well-known face on the guild, mostly because he was the youngest salvager of the guild. Most of the salvagers were middle age men, they was no women or children among their ranks, so being a twelve year old boy really stand out between all those men. Also, he was really good at his job.

Argentum was live as always, people moving all the time, merchants selling their products and buying what they found valuable, Salvagers were fixing their gear or resting at the inn. But what he needed to go was to the chairman office.

Rex knock the door two times and waited, it was rude and disrespectful to get into his office without warning. There was a rumor that some girl entered his office when he was at the middle of a deal and lose his focus, the girl was immediately fired after that.

"Come in." Rex enter as he was instructed, when he entered he saw that Bana wasn't alone. Before his desk was standing two men he never saw before at the guild, they weren't your typical merchants, no, they were wearing black clothing with weird symbols.

"Well, we can keep our conversation later, ."

"Of course, please enjoy your stay in my guild." Both men bowed to him, they walked pass him. One of them check him out but not for long.

"Rex, did you come back with something?"

"Yes, an old engine from a sink Ship. It could worth something."

"Good but now that you're here, there's something I want to tell you about."

"Eh? What is it, sir?"

"Those men who were talking to Bana came to us to hire us for a bounty. You see, these men lost a shipment last week along with a high value object. They hire us to search their object inside the Merchant route."

The boy tried his best to show any emotion, it was exactly like gramps said at the route. "What kind of object?"

"A core crystal."

Goddammit.

"A core crystal? What's so important about it?"

"Don't know, don't care. They are willing to pay high cash to whoever brings the crystal to them."

"How much?"

"Four million gold."

"F-Four million?!"

"Actually they paid eight million, four to me and the other four to the guy who found that think. I'm saying this to you because you're one of the best salvagers, so stop wasting my time and get me that core crystal!"

"Yes sir!"

Rex ran away, if someone had hear them that person would believe that Rex was excited to find that core crystal but it was far from the truth. He already found it.

"Eight million?!"

"Yep! Can you believe this?! If we give them this crystal we could we give all that money to Corrine and the others! It's a huge deal!"

After learning the truth of the crystal, Rex asked Azurda to sail once again into the cloud sea so that no one could hear them. He explained everything to him and what kind of reward they could get.

"Rex, not matter how much they are willing to pay, you must not give them the core crystal."

"Why? It's theirs."

"Maybe, maybe they lied and they want to get the crystal before everyone else notice. Or maybe it is and they want to use the crystal for something shady."

"Maybe your right, but we don't know nothing about them, Gramps."

"They were wearing black clothes and weird symbols you say, I don't know but that usually is a bad omen."

"So what? We do what you say and give it to Indol? How do we know if the crystal doesn't belong to someone important?"

"You're right, we don't know nothing that's why we don't do anything."

"It's four million gold, gramps!"

"It's money, you can get money by working."

"Not this much at once, just think, the school could get better books, high quality medicine and the others shouldn't worry anymore of getting a job at a young age."

"Rex…I understand that it a big deal but think about it, what if this people decide to use this core to kill other people? How do you know that they won't attack Leftheria? And even if they decide to ignore it, would you be able to live with yourself knowing that you aided such people?"

Rex didn't respond because Azurda was absolutely right. For a second he let all that money get the worst of him and didn't let him think clearly.

"T-Then what should we do? Everyone is looking for this, we can't keep it forever."

"We should get to Indol the fast we can but we need to do it without calling attention, after all, Bana is counting that you're looking for it."

"All the salvagers are looking for it, it wouldn't be weird if the searching spends nights looking for a four million crystal."

"We use the situation at our favor then. But the problem is to find Indol."

The Indolian Praetorium was the association that controlled the core crystal traffic, no crystal was allowed to move without the approval of the Praetorium. Not even the military or royals. "Wait, wouldn't the Praetorium would know about this? They need their approval if they want to ship it."

"Then we ask when we found it and if by any chance I'm completely wrong….well, let's see if we're able to get those four millions." Azurda smiled and so did Rex.

"Okay, the Praetorium it is."

He has never gone to the Praetorioum but he heard amazing things of it, they said that the palace was breath taking and the chorus was the best of all Alrest. But found it was really hard because it was the fastest titan of all.

Yet, there were many flying titans out there so it couldn't be that hard…

"We should go to Leftheria first, so we could get some food before the journey."

"Fine by me, but you don't have to tell no one about the Core Crystal, not even Corinne." He felt wrong lying to her but he could understand why not tell her. "Get some sleep boy, I'll wake you up when we get there."

"Okay, be careful, Gramps." Rex went into the warehouse, he jump into his bed and tried to rest. But his eyes were on the box that contained the Crystal.

Why people would go this far for this? What blade can be worth so much trouble? And what do they want to use it?

Rex tried to rest but his mind was flowing with questions and concerns. Did he really think of getting money of it? Now he felt sick about it, Gramps was right. How could he live knowing that he could have doomed people for his greed? Corrine will be proud of him…

He stared at the box for hours, thinking in silence. Fighting his curiosity to open it and try to synchronise with it. Or he could die trying….

….

Yeah, let's not think about him probably dying because of his stupidity. Maybe a quick nap could help him.

The light coming outside wake him up immediately. "Oi, who are you people?!" Azurda scream angrily too, something bad was happening outside.

Rex immediately wake up and went outside, a battleship titan was floating at their side. He has never seen this type of ship before, neither those symbols.

"Gramps, what's going on?!"

"This people came out of nowhere at they surround me!"

"What do they want?!"

"I don't know!"

The lights of the battleship illuminated Azurda's back, Rex could merely see who were inside that ship. "Are you a salvager?" A man voiced asked trough speaker.

"What?!"

"Are you a salvager?"

"Yes! Who are you?!"

"We'll do the questions, boy." The man didn't allow him to speak. "This titan of yours is capable of speaking."

"And hearing as well." Azurda growled in anger. "What do you want?"

"If you are part of the Trade guild, you should already know about the mission that I give to all Salvagers. But when we talked to the Guild boss, someone interrupt us. A young salvager, the same boy who ran away from Bana's office and now is in front of us."

He swallows his saliva. "S-So…?"

"Why did you run away? Well, at first we thought that you were like the others, moving yourself for money but you run away too fast, like you were trying to hide something from someone."

"I'm looking for your artefact."

"What is out artefact, boy?"

"A core crystal."

"Indeed. Well, if you're truly looking for it…how is that this back is empty?" He asked. "Nothing assures you that you're going to find it in one catch, meaning that you have high possibilities to fail multiple times. You see, I don't think that someone that's looking for our crystal will have his work environment so clean."

"He was sleeping until know."

"Wasn't he looking for our core?"

"He was tired."

"ENOUGH!" One of his partner yelled. "Kid, I will be straight with you. Give us the crystal or we take it by force."

"W-What?!"

"You see we have a way to know if is our crystal is close. The problem is that it has to be really close to it, so we can't use if is it under water. So, imagine our surprise that our tracker managed to find a signal after so long…"

The boy started to sweat heavily and looked at his desk, a stupid mistake. "So is inside that shelter?"

"Dammit!" Azurda screamed in anger. "Hold yourself, Rex!" Azurda extended his wings, making waves on the cloud sea.

"FIRE NOW!" A lighting ball was fired from those people ship, the ball impacted on Azurda's neck. He heard about these rounds, they were made to stunned titans from moving and captured them.

The electricity expanding to all his nervous system, completely paralyse him in the act. "GRAMPS!" Rex screamed. "You bastards!"

One would believe that he would jump right into fighting them but instead he went inside the shelter and grabbed something. The men started jump into Azurda, armed to their teeth. If this people wanted that thing he will get it for them.

"STOP THIS NOW!" Rex came out of with a box in his hands, they all freeze, meaning that they know what that box was. "Move and I throw this thing back to the sea."

"Boy….listen…you don't know what you have in your hands."

"I know that you guys want it! And if I threw it to the sea you will lose it forever."

"We have a device to find it, boy. It's useless."

"Well, then you will not mind if I do it!" Rex raised his arms but he saw perfectly how everyone flinched in fear. "If things were really that easy you wouldn't have contact us for find it, so I'm wondering how-"

*Bang!*

"AAAHHHH!" One of those bastards shot him! They shot his hand! It hurt like hell! "The crystal!"

"No!" The box shattered into pieces and the core crystal went out. For all the people present, time went slower. If they touch it and don't synchronise they will die, the obvious reason of why it was inside that box.

Rex looked at that as well and thought the same. Azurda warned him, heck he heard a lot of stories about people dying because of it. These people knew this as well.

But something inside him told him to take the risk, to give his all before they kill him. So he ignored the pain of his hand and extended it, screams were directed at him, insulting him and telling him to stop but he ignored them.

The core crystal landed on his hand.

And shine.

"What?!"

"HOW?!"

"There's no way that's possible!"

But it was, he was synchronising with the crystal. The light emanating from it was overwhelming, no one was able to see because of it. Whatever that was happening to him was hard to describe, it like his soul was being touched. He was becoming one with the crystal, it's power was involving his body.

The ritual in reality lasted seconds, not even a minute long. And like it was work of magic, someone appeared in front of him out of nowhere, or rather, a girl appeared before him.

She was outstandingly beautiful. Her hair was long and white, making contrast to her dark skin. The unknown girl was wearing a dark purple theme outfit, composed of torso armour that covered most of her stomach but leave the shoulders alone and some part of her hips.

Her under body consisted on a miniskirt, thighs that at first hand he thought that was torn but actually they were cut to have a three clover shape.

But he couldn't see her face, it was being masked by a black visor with a weird red orb that mimic a red creepy eye. Until she decided to took it off and show her face, she was even prettier that he thought. She was wearing glasses that didn't hide her purple eyes.

Rex was speechless because of her beauty and the realisation that this girl was his blade.

He has become a driver.

So imagine that after this glorious moment, the disappointment that was when the first thing he got from his blade was a frown.

"Is this some kind of joke?" Were her first words to him. "This little pathetic runt is my driver? Taking about bad taste."

"W-What?! Who is a pathetic runt?!"

"Oh so you talk, what a shame." She sighed annoyingly. "Listen, I will not call you "master" or "Driver", understand? I won't accept a ten year old as a driver."

"I'm twelve!"

"You look like ten and…you talking back to me?" She didn't raise her tone but her intentions were noticeable. "Hahahahaha!"

"What're you laughing-Oh shit, I forgot about them!" Rex looked behind her to see his enemies but…they weren't attacking them, instead they were standing in silence. A minute ago they were trying to kill him but now they were stunned.

"Hmm?" The blade turned her head to them, she stare at them with crossed arms. "That symbol…" After she talked they kneel.

"Lady T-elos."

"You know me."

"We were looking for you, my lady, and waiting for your return as well for all of your sisters."

"Oooh, then you may tell me who are you people?"

"Hold it!" Rex stopped their conversation. "Okay, what the hell is going on? First you stop us, then you shot me and now you kneel. Just what the heck you want?!"

They looked at each other. "I see…Rex, was it? I admit that we overdue but for our defense, we were on the edge. Recovering Lady T-elos was our only goal."

"T-elos…is that your name?"

"It is."

"So you know this people?"

"At all." She answered. "But I do recognise that symbol, is the Torna emblem. Is hard to miss it, boy."

"T-Torna you say…?" Azurda was trying to speak. "That can't…be…I would…"

"OH SHIT!" T-elos was the one who screamed in surprise. "Azurda?! You're so big!"

"T-elos…good to see you…"

"You know her, gramps?"

"Yes, is impossible to forget about her and her sisters. To believe that you were the core crystal we found…"

"…Boy, what year is it?"

"4064, why?"

"4064…."

"He is telling the truth, lady T-elos." One of them said. "It's been five hundred years since the holy war."

Five hundred years?! The holy war?! What in the name of the architect was going on?

"Before we discuss this even further there's something we need to see first about you." The man talked to him. "But we need you to come inside our ship-"

"NO!" Azurda recovered his movement. "He is not going anywhere with you!"

"…Very well, then we bring it to him."

"You can't be serious. We can't give him the-"

"If he was able to resonance with her then it worth the risks, so go and bring it!" His companions ran to their ship and went inside. Almost immediately that person came back with a box that resemble or rather exactly like the same box he find deep inside the cloud sea.

"W-What's this?"

"A test." They bring the box to him an opened it, and just like he suspected, it was a core crystal inside.

"Huh, looks like you people have been doing your homework."

"You know who she is?"

"Of course not but I know what she is, she is one of my 'beloved' sisters…" T-elos made an emphasis on that word.

"S-So you want me to…touch it?"

"Yes."

"Why?"

"You were able to resonance with Lady T-elos, by logic, you should resonance with this core as well."

"And why should I do that?"

"Because the fate of all Alrest depends on it." Rex's eyes wined in shock. "So please, touch it."

"W-What happen if I fail?"

"You will die." He answered, and then he directed his eyes to T-elos. "Except you have something against it, lady T-elos."

"If he dies then is your job to find me a new driver, human." She answered. "But rather of a matter of resonance or not, is a matter if he can handle two of us." An evil grin adorned her face. "So, go ahead."

"Please, do it."

The young salvager stared at the new crystal core. It was an oddity than a driver has more than one blade, no impossible but weird. If you managed to get a blade once, you could have as many you want.

But everything was shady. What is their goal? What could they benefit from this? Why give him this core crystal like nothing? And what they meant that the fate of alrest depends on it?

One thing was for sure, he couldn't let this people have T-elos or this blade sealed inside the crystal.

So he took all his courage and grabbed the crystal with both hands. The boy could felt the same feeling that he got with the blade at his side.

But at the same time, his soul felt different. He was feeling that he was being divided into two different pieces and coexists at the same time, if that made any sense. Was this normal? He couldn't tell.

When the shine disappears a person appeared.

It was the weirdest feeling of déjà vu because the blade girl was exactly like T-elos. Or that was his first thought because in appearance she was the exact opposite of T-elos. For starters, her colour pallet was the contrary of T-elos, in other words, white instead of black.

Just like her she had a torso armour that didn't covered her shoulders for some reason, but a difference of T-elos she had more armour in her body than she. As a matter of fact, she remind him of a robot.

The woman had armour on her legs and arms, as well as a visor. Her skin was white and her hair blue, her eyes as bloody red. But her face…was emotionless, like a doll.

"Kos-mos. Obey Strategical Multiple Operational Systems." Her voice was robotic and completely lacking any sing of emotion or life.

Just like a robot.

"KOS-MOS!" T-elos yelled with an unspeakable anger.

"T-elos. Engaging battle mode."

Both girls summoning their weapons, T-elos had a giant scythe while Kos-mos was armed with two golden ether canons. But what surprised him was the fact that their body suddenly grow up crystals on all their bodies.

And they engage into battle.

Horrible cliffhanger, I know but this chapter was getting to long for me. I want to read about your opinions about this fic and what to improve.

See you next chapter