AN* And here we are with a brand new story! This story is courtesy of a challenge request by Kfbanime87 who requested this story be made. Now enough out of me, enjoy the opening chapter and leave some reviews at the end so I know what you all think.

Darkness And Light

Darkness had become Naruto's entire world. Well most of his world if he was honest with himself. For what had seemed like an eternity he had been trapped in the Realm Of Darkness, living among the shattered remnants of what was once his world, The Elemental Nations, and many others that he didn't recognize. The battle against Kaguya had taken a turn for the worse as he and Sasuke had been about ot seal her away again for all eternity, only for the three eyed rabbit goddess to use a last ditch effort to stop them. One that doomed the entire world. Darkness had sprung forth from the ground where her final blow had landed, and they had thought that it was just a simple attack to dodge, until it began spreading and consuming everything. There was no stopping it and despite their best efforts the darkness swallowed Naruto, Sasuke, Sakura and Kakashi along with Kaguya. Naruto wasn't sure what had happened, or how he had arrived where he had but he found himself standing on a scrap of the battlefield, floating in a dark void. The more troubling fact was that the remnants of the Biju were gone, and only Kurama remained, though he could barely talk anymore, saying he was far too weakened to try.

Time meant nothing in this realm and Naruto had no way of measuring it. He slept when he was tired but he never felt hunger, and he spent his time leaping and exploring the various scraps of lands. Eventually his wanderings had led him to the one thing that had been a break from the endless destroyed lands and pitch black void. Her name was Aqua.

"You ready Naruto?" Aqua asked him as she walked back into the view of the small shelter that they were currently using.

"You know it." Naruto nodded as he stood up and followed after the blue haired warrior. She was what was known as a Keyblade Master. They apparently traveled between worlds and helped stop the darkness from swallowing worlds by closing the keyholes in the worlds and protecting them from being destroyed. She was also his savior as his heart was especially strong and had lured black creatures known as Heartless to him. When Naruto had first seen them they had been small, only a few feet tall if they stood on their hind legs, completely black with little antenna on their heads and their only facial feature were golden circles that were their eyes. It had taken time but Aqua taught Naruto how to summon forth a Keyblade of his own, and then taught him how to fight, as well as teaching him the importance of what they did, protecting the worlds from Darkness and helping those who needed it.

It took time but Naruto learned more about Aqua as well. She had been named a Keyblade Master and then sent out to investigate a disturbance in the worlds. She hadn't been the only one to go though as her two friends had gone as well. This had led them across the worlds where one of her friends slowly succumbed to his own inner darkness and the other was faced with the copy that had been created from the darkness in his own heart by his former master in his quest to create the χ-blade, a weapon that all other keyblades were based off of. In the end Ventus had fallen into a coma and Terra had lost his body to Xehanort, which had led to Aqua trying to stop him and thus winding up trapped in the Realm Of Darkness.

"Ok Naruto. Let's have another go." Aqua smiled as seh summoned her own keyblade Master's Defender. The Master's defender had a smooth, cylindrical, grey shaft that tapered outward at both ends, with a boxy guard made up of two small light gray boxes and a copper rod. The base of the guard connected to the grip, and both sported several smaller indentations lining them. The grip itself was squared while the teeth were in the shape of an "E". The keychain was made of serveral simple chain links and its token was in the shape of what Aqua called Terra's Mark, a symbol that showed where you were trained. It was shaped like a heart with a sharp cross at its base and was very angular and squared.

"I'm ready." Naruto nodded as he held out his right hand and summoned his keyblade Kurama. The guard was more of an oval shape and having the appearance of tails as they wrapped around the hilt with the chain starting where the nine tails ended. The keychain itself was that of a smaller version of Kurama himself in his Biju form, the orange fur outlined in black, just like the guard and hilt of the weapon. The base of the shaft was the body of the kitsune extending forward and stopping midway up the weapon with what looked like a paw coming forward to complete the rest of the shaft, with the teeth of the key being shaped like claws and bent forward and inward to hook an enemy or slash through them. The entire length of the shaft was orange like the guard with the edges still being almost black while the teeth were an ivory color. The length was slightly longer then Master's Defender but it suited Naruto perfectly.

The two squared off from each other like they always did in their little ritual before Naruto struck first, moving forward in quick precise strikes that Aqua parried with ease as she made sure to not to get Master's Defender caught on the claws of Kurama. Naruto smirked as he started to use the rubble of their current campsite to his advantage as he leapt on a fallen pile of stone and leapt above her, striking quickly at her head, forcing the older keyblade wielder to block the strike and let Naruto hook Kurama's claws into Masters Defender. Pulling himself forward Naruto used his freehand to create his Rasengan and slammed the sphere into her stomach knocking Aqua back a short distance, and Naruto realized that he had screwed up by using a special skill first.

"Blizzaga!" She shouted as the large shards of ice went flying towards Naruto who leapt back to avoid a few of the flying icicles and was using Kurama to shatter the rest before they got too close as he raised his own hand.

"Thundara!" he shouted back and sent the bolts of lightning flying towards the master who batted the spell aside as she launched another spell at him.

"Thundaga!"

"Crap." Naruto cursed as he dropped into a roll to avoid the blast of lightning as he rushed forward, closing the distance in a flash.

"Won't be that easy." Aqua chided with a smirk as she parried his initial strike and spun around his thrust, taking his back where she put the flat of her hand against his lower back "Fire."

The fireball launched off and sent Naruto flying a short distance who grinned as he turned and faced her as he pointed Kurama towards her, having finally charged up enough to use his ultimate attack.

"Bijudama!" He shouted, sending a sphere of concentrated destruction flying towards Aqua who leapt back and unleashed her own special counter.

"Ghost Drive." She smirked as she started moving fast enough to leave after images of herself as she moved around the area and then disappeared out of the blast area and Naruto mentally cursed as he heard the next words out of her mouth "Blade Charge." As soon as those words left her mouth her keyblade began to glow and transformed into a much longer weapon that she swung and sent Naruto flying through the debris of his own missed attack. Skidding back Naruto managed to get his footing in time to see Aqua following up on the attack and forcing him to try and dodge it. And the dodge only ended up with the glowing blade smashing into his back and sending him bouncing onto the edge of their floating piece of land.

"Ok, I give." Naruto groaned as pushed himself away from the edge.

"You are improving." Aqua smiled as she sat down next to him "You'd easily give my friends a run for their money."

"Maybe." Naruto sighed as he looked up at the darkness.

"We're going to have to start moving soon." Aqua noted.

"Yeah." Naruto nodded "There haven't been too many Heartless lately. It's odd."

"I've noticed it as well."

"Think something's happening elsewhere?" Naruto asked.

"It is possible. There's no way of knowing how long it's been since you came here, let alone me." Aqua mused.

"Well we will find a way out eventually." Naruto replied with a smile "No doubt about it."

"Yes." Aqua smiled now as she gripped his hand before standing.

The two spent an unknown amount of time traveling the broken pieces of land and always keeping an eye out for a way to get out of the Realm Of Darkness. Throughout that time they always trained, with Aqua quizzing Naruto on various types of Heartless, the different types of magical abilities, the importance of the Hearts of Worlds and many other subjects. Naruto always did his best with these little quizzes, and after the amount of time that they had gone over the information it was sticking in his head.

However Naruto rubbed off on Aqua as much as her teachings did on him. His drive to protect people and do the right thing were uncompromising as was his belief that there was a way for true peace to be achieved. This was something he was dead set on, and now that he learned about the many different worlds out there he felt the draw to do even greater good. To help end strife and conflict in all worlds, to help spread understanding and knowledge through them. Aqua had tried to caution him on this, about meddling in the affairs of other worlds but she came around to Naruto's way of thinking, that it was possible to help these worlds as a neutral third party while not meddling or harming the worlds as a whole.

"So you expect me to believe that you were able to fly once?" Aqua asked one day as they sat in their makeshift camp. They had been traveling for awhile and once they had taken care of the Shadows that had appeared around their campsite they were now sitting next to each other looking out over a small cluster of broken lands.

"You better believe it!" Naruto laughed "I was just as shocked when I learned I could do it."

"So why don't you now?" Aqua asked in a teasing tone.

"I can't... I don't know why but I can't trigger it." Naruto sighed.

"Trigger what? Is this like when you claimed you can make copies of yourself?" Aqua asked with a frown.

"Yeah..." Naruto sighed "I don't get it. I should be able to do these things. I know that I have done them. But every time I try to..."

"Like a memory just out of reach." Aqua nodded.

"Best way I heard it put." Naruto agreed "I just wish I knew why."

"When the time is right you will." Aqua promised as she put a comforting hand on his shoulder. Naruto didn't say anything but just took comfort in her presence, the one reason he hadn't gone insane in the Realm of Darkness. The pair sat for a time until a sight caught their eyes that they had never seen. Light. A shard of light was visible on the horizon as it looked like a giant door opening.

"Aqua!" Naruto began.

"I see it." Aqua replied as she leapt up, with Naruto hot on her heels as they leapt across the gap to another floating chunk of debris "It's a way out!"

"Well let's go!" Naruto laughed as they continued leaping until they landed on a dark stretch of plain, and could see the giant door. Rushing towards it Naruto could see glimpses of shadowy figures rising up in between the two keyblade wielders and their door out, and Naruto recognized them for Darksides. The largest of the Heartless that Naruto had encountered and it usually took Aqua and Naruto working together to to take one of them down, and now there were dozens of them slowly starting to stand.

"I think they want out as well!" Naruto shouted as he summoned Kurama.

"Well we won't let them." Aqua replied as she summoned out Master's Defender and the pair began cutting down the giant Heartless as they cut their way closer and closer towards the door. From the brief glimpses Naruto could make he saw that the door was slowly closing, being pushed from the outside and being pulled by a youth from the inside.

"Aqua!" Naruto shouted as he saw that the door was going to shut soon. Aqua seemed to reach a conclusion as she grabbed Naruto's hand and pulled him close to her.

"Naruto. We aren't going to make it."

"We have to try."

"I said we." she said as she kissed him, stunning the blond at the action as she pulled back "Aeroga!" Casting the flight spell on Naruto she swung her keyblade as hard as she could and sent him rocketing towards the slowly closing door "I love you!"

"NO! AQUA!" Naruto roared as he flew past the last few Darksides, and out of the door. Landing Naruto lunged towards the door trying to get back in and get Aqua back out but the three people pushing on the door from the outside closed it as the brown haired boy held up a keyblade and locked the door from this side. The door disappeared just as Naruto reached it, knocking the duck and bipedal dog to the side as he collapsed there.

"NO!" Naruto shouted as he slammed a fist on the ground that was slowly changing.

"Gwarsh. Who's he?" the dog asked in shock.

"I don't know Goofy. Was he with the King?" the duck asked with a frown as he looked at Naruto. The blond was motionless for a few moments, his heart in utter turmoil and wanting to lash out at those that closed the door.

"That's not what Aqua would want." Kurama reminded him.

"The open door was a threat." Naruto agreed quietly "She did that to save me. We can't leave her behind."

"The door is gone."

"Then we find another way." Naruto stated "I'm not leaving her trapped in the darkness."

Pulled from his mental discussion with the Biju Naruto realized that he was now standing in a field along with the three that had closed the door.

"So who're you?" The boy asked.

"Naruto Uzumaki." Naruto said as he summoned forth his keyblade "Keyblade wielder and student to Master Aqua."