Only Shikamaru from Naruto will ever be in Fairy Tail... *thinking*

So here we are!

Friendly Warning: unbeta, I'm deaf and English is my second language~ :3

I don't own Naruto and Fairy Tail!

Enjoy~ And please tell me what you readers think?

Fairy Tail: Shadow Dragon Slayer

Prologue

Darkness.

Is all he could see and aware of it. Things were confusing for him because he has no idea where on earth is he nor when has he been laying there. He remembered that he was in a war; a Great Fourth Shinobi War declared by Uchiha, Obito. Every villages decided to allied and fight against dead-walking shinobis, hundreds of Zetsu among them, and even ten-tails beast is there. The war was horror for everyone. Because they have lost hopes to win but that all change when the great Uzumaki, Naruto came to aid in war. For the first time, every shinobis regain hopes all because of Naruto.

Every ninjas fought with all their best until death and among in the shinobis, one guy saved his comrade's life and died. He died in the arms of his two best friends. He knew, it was too late and all he did was smiled at his friends and died.

And now, everything was empty and darkness for a while. And suddenly, he felt his body has energy back and he decided to open his eyes. Once, he opened his eyes and blinked few times to adjusted the lights in the room. He sat up and saw his wounds are all vanish and his usual outfit has changed into black jeans and grey t-shirt and barefoot. He blinked again and glanced at his surrounding in cautioned and suspicion. His brown hair fell over his shoulders that he noticed he doesn't have his hair tie or anything to tie his hair up. He sighed, "Troublesome." He mumbled and pushed his hair back behind his ears.

"Nara, Shikamaru."

Shikamaru jerk his eyes around his surrounding to find any source where the voice comes from. "Who are you?" he said in suspicion.

"To think that you are meant to be my chosen…" an irritated yet amused voice said.

Shikamaru frowned, "Chosen? For what?" he wasn't sure if he's going to like the answer.

The voice just laughed and the dark shades appeared front of Shikamaru. The lazy-ass eyes widen in shocked when the shades faded into solid figures of a large dragon. The dragon's scales are grey with black tips, the wings are large and wide that you can see its silver vines inside the wings. The claws are completely black yet it's very intimidating. It's eyes are sharp of ocean-blue and horns are silver spikes above its head. "A…dragon." Shikamaru mumbled in disbelieved; staring at the large dragon.

The dragon stared at his chosen human, "Name's Sioux, brat." He snapped at him. He doesn't like people called him, 'dragon' since he has a name.

Shikamaru sweatdropped as he stares blankly at Sioux. '…this is…troublesome.' He thought silently.

Sioux tilted his head, "I have been waiting for you chosen, for a very long time." He said.

"What do you mean by chosen?" Shikamaru frowned at the dragon.

"Chosen as in my student, a son who will carry the great magic in the world." Sioux explained calmly as he laid comfortably.

The lazy-ass blinked owlishly, "A…student…son…magic…what?" he attempted to understand yet he doesn't understand the hell is going on.

Sioux hummed, "I was told that my son would be intelligent…not an idiot." He blurted in disappointed.

Shikamaru twitched in annoyed, "Troublesome. Excuse me for not believing and seeing that a dragon that size is about tails-beast is talking to me." He grumbled and leaned back with his hands behind lazily.

Sioux laughed, "Your lazy-ass attitude really amuses me son! I like you." He grinned at his human. "I'll explain, you better listen to me brat. I won't repeat." He warned the lazy-ass boy.

Shikamaru frowned but he put his attention on the dragon, "Many thousand years ago, we have a chosen that we're meant to be teaching our secrets in our child. I was told once that my chosen will be born in completely different world and raise in different lifestyles. I have been waiting for years until my death. As my soul, I can wait for you in this world between of heaven and hell when you died."

"This place is between heaven and hell, huh?" Shikamaru glanced around white world. Sioux nodded his head. "Why waiting for me?" he asked in curious.

"To teach you the magic. My magic."

Shikamaru furrowed his eyebrows, "What magic?" he is curious.

Sioux hummed, "Magic…just like Chakra in your world. In my world, magic exist. Everywhere is magic." He said in mysteriously, "I'll explain the history to you later. For now, I want you to learn the magic from me." Shikamaru frowned and Sioux puff out his chest in pride, "You will be Shadow Dragon Slayer."

The lazy-ass blinked owlishly at the dragon. 'Shadow…dragon slayer?' Ironic enough, his blood as Nara use Manipulation Shadow Jutsu.

"This is…such a drag." Shikamaru sighed loudly. He just died and now a giant dragon has to teach him how to become a Shadow Dragon Slayer because he was a chosen? Troublesome…