Author Note: After reading a bunch of Natsu and Gray stories, I was simply motivated to write one myself. I used to write stories under a different account but wish to start fresh with a new account. I hope you enjoy the story as well as the writing and please don't hesitate to let me know what your thoughts are through a review.

Title: A Promise Fulfilled

Chapter 1: Stranger

Rated: T

Warnings: Some language, Shounen-ai

Pairings: Natsu x Gray

Disclaimer: Fairy Tail and its characters do not belong to me; Spells also do not belong to me (credit Skyrim); however, any OC named in this story do belong to me

At the crack of dawn, a lonesome figure stood in front of the most well-known Guild in Fiore Kingdom: Fairy Tail. The individual was not tall nor short and was dressed in an elegant, brown robe with its hood covering the face. The gauntlets and boots were dark black with a beautiful white pattern etched into the armor. A silver ring was found on the individual's right hand and shimmered a bit due to the sun rising above Magnolia. An amulet could discreetly be found hanging around the neck and had beautiful yellow patterns as if made by an old tribe.

The name of this individual would make anyone in the West think twice about who they were dealing with but it would seem this figure can be compared to almost a stranger in the Fiore Kingdom. His name was common; in the Kingdom, it was foreign.

After breathing a huge sigh, the figure slowly opened the doors to the guild and was taken aback with the sight that greeted him. It was a strange sight to behold for a stranger - a bunch of people were in the guild but they seem to be passed out as if they had thrown a huge party the night before. However, a girl could be found on the opposite side of the entrance. She hummed a bit to herself while wiping a couple of glasses behind her but she did take notice of the stranger at the doors.

"Hello and welcome to Fairy Tail. My name is Mirajane. How can I help you?" The figure slowly walked in, making sure the doors closed behind him. As he came closer, it would seem that the figure is a male with raven black hair, which was very similar to Gray's. With guild members laying all around, he made sure not to make a sound as he lightly walked around them. He quietly cleared his throat and when he spoke, it sounded as if he hadn't spoken for days.

"Excuse me, I'm here to see Makarov." With the name of their guild master being said, Mirajane stood a bit defensively but made no signs to show that to the stranger.

"Our master? I'm sorry but he is out attending a meeting with the council. Is there anything I could do to help you instead?" She said with a smile.

"Do you know where I can find him? I urgently need to speak with him." Some members started to stir about due to the exchange between Mirajane and the unknown male, especially a woman with long, blonde hair.

"Gosh, I'm soooo tired!" Lucy stretched her arms above her head while yawning. She then proceeded to rub her eyes and once her vision cleared up, she looked up to see an unknown male standing in front of the bar where Mirajane was located. "Who's this?" Her question went unnoticed when Mirajane slowly placed the glass she was holding down on the bar.

"Perhaps I can take a message and deliver it to our master once he returns. Will that suffice?" Lucy looked at the both of them and for some reason, the atmosphere was quickly changing to something more tense.

"When will he be returning?"

"Sometime this afternoon." With that said, the figure at the bar slowly raised his right hand and opened it up to reveal a clear diamond with a black hole inside with a red center. Mirajane and Lucy were both on guard as they weren't sure what to expect from an unknown stranger who appears to be getting ready to cast a spell. After a quick, fluid motion from his right hand, the figure suddenly disappeared from the guild.

"Um, what was that all about?" Lucy slowly stood up looking around the guild to ensure that the stranger was really gone.

"I don't know but," Mirajane picked up the glass and resumed cleaning it as she continued to speak. "It felt as if he wanted to fight someone or more specifically, our master." Lucy's jaw slightly dropped.

"Whaaattt? Someone wanted to fight Makarov? That makes no sense and you can't just go barging in any guild demanding to fight its master!"

"A fight?! Where?" A pink-haired fellow started to stir from his sleep but it would seem the sound of a fight got him excited even as he awoke.

"No one is fighting Natsu." The rosette seemed a bit disappointed but that didn't stop him from starting one. He looked over to the ice mage nearby and had an evil glint in his eyes.

"Now I can get my revenge from last night Gray!" Natsu quickly stood up and began to approach the sleeping figure who was dressed in his usual white robes. However, Natsu quickly stopped in his tracks when he smelled something… odd.

"Natsu?" Lucy and Mirajane were both surprised to see him stop his antics before they began as they were fully aware of the rivalry between the fire and ice mages.

"I smell something…" The girls looked at each other before looking back to Natsu. "I smell someone's scent that I've never smelled before." Before anyone knew it, a spell was cast from the dragon slayer. "Karyu no Tekken!" Natsu's fists suddenly were engulfed in flames as he lept up to a nearby pillar and punched nothing but air.

"Natsu! What are you trying to do? Burn the guild down?!" Suddenly, a soft groan was heard near the entrance. The mysteriously figure that disappeared right before Lucy and Mirajane now suddenly reappeared hunched over his stomach. "I thought he left already!"

"He used an invisibility spell." Lucy looked over to the white haired girl who was now sitting on one of the bar stools. "Usually, when one casts an invisibility spell, you could still see a faint outline of the person but he completely disappeared." Lucy gulped as this stranger could potentially be an enemy to the guild.

"Who are you and why are you really here?" Mirajane asked as Natsu seemed to be all fired up to fight. The unknown figure slowly raised his left hand and revealed a yellow orb light. Without so much as a whisper, the figure spoke.

"Grand healing." He slowly removed his right arm that was covering the injury from Natsu's attack and revealed that a part of his robes were burnt. However, strands of light began to cover the figure in a circular manner and his clothes went back to normal. Without another word, Natsu began another attack.

"Karyu no Enchu!" A stream of fire appeared from Natsu's elbow, which propelled him forward towards the figure.

"Paralyze." The figure raised his right hand as a green orb was shot towards Natsu and once it reached its target, Natsu fell to the ground.

"Natsu!" With Lucy's scream, all of the other guild members began to wake up and once they processed the scene in front of them with Natsu on the ground, they all assumed fighting positions. The figure scanned the area and took both of his hands and slowly started focusing his magic.

"Mass Paralysis!" A green light was emitted from the figure and the entire guild was soon paralyzed. Lucy fell to the ground but was unable to speak or move due to the effect from the spell. However, it would seem that the spell didn't affect some of the stronger members of the guild. Erza soon appeared behind the bar and took her position next to Mirajane. "Please, I do not wish to fight."

"An attack on the guild surely means war. State your business with Fairy Tail!" Erza commanded the stranger but no response was heard. As such, Erza soon re-equipped into her Heaven's Wheel Armor. Without another second passing, a massive amount of swords appeared as she began her attack. "Blumenblatt!" The swords propelled forward to strike but the figure raised both of his hands to cast another spell.

"Summon Frost Atronach!" Using the black orbs in his hands, two massive purple portals appeared next to him, which revealed two huge ice figures that withstood the mighty attack from Titania.

"Your spells are quite unique; however, they are not unknown to me. You seem to have come from the West, am I correct?" The figure remained quiet to all the questions being posed to him as if he had something to hide. The paralysis began to wore off on Natsu as he tiredly got back up.

"That's cheating!" Natsu felt too tired to move but his strength was slowly returning to him. He began to shiver as the cold that was emitting from the Frost Atronachs began to lower the temperature in the guild. Oddly enough, the cold finally woke the ice mage up from his slumber. He yawned as he began to stretch his arms out to the sides. "Wake up frost breath! We have an enemy in the guild!"

"What enemy?" Gray slowly opened his eyes to reveal the scene unfolding in front of him. He quickly stood up and gave a confident smirk. "What's wrong flame breath? You look tired! Don't worry, I'll take care of this." Natsu growled at the ice mage as he moved pass the dragon slayer. "Who is he anyway?"

"I don't know… I just found him in our guild."

"You found him here…? So why are we fighting?"

"I punched him."

"You punched him? Why?"

"Cause he was here." Gray smacked his forehead at the idiot.

"So you started the fight?" Natsu took some time and pondered at the question.

"Yep!" He gave a huge smile, which slightly annoyed Gray but also made him a smile a bit on the inside. Typical Natsu.

"If leaving the guild will avoid a needless fight, then so be it." The figure began to walk away with the two atronachs in tow but Natsu wasn't going to have any of that.

"Karyu no Hoko!" Natsu's signature dragon roar suddenly released a large quantity of flames from his mouth, which aimed for the figure in front. Gray quickly jumped out of the way while calling him an idiot yet again as he was almost hit as well. The figure turned back around to see his atronachs taking the heat but as they slowly started to melt, he raised both of his hands.

"Ice Storm!" Two freezing whirlwinds appeared in front of the figure and started to push back Natsu's attack. "Ice Storm!" Another two freezing whirlwinds pushed back the attack and Gray took this opportunity to step in.

"Shirudo!" A large shield made of ice was quickly made in front of Gray, whose shape is vaguely reminiscent of a flower. The shield was able to stop the attack from the mysterious figure in front of them. "Purizun!" Suddenly, a large square cage made out of ice trapped the figure. "Got him!"

"Summon Flame Atronach!" Two more portals appeared next to him, which revealed two figures made out of fire and had armor covering parts of its body to make a female look. The appearance of the atronachs made the temperature in the guild rise quickly, which excited the dragon slayer.

"I'm so pumped! I don't think I fought someone who could cast so many different types of spells!" In the background, the paralysis over the guild began to wore off. "Karyu no Saiga!" Natsu lept forward towards the so-called enemy and swiped at him in a claw-like fashion. However, the atronachs stood in front to shield its master and it would appear the attack had no effect.

"Hanma!" A large ice hammer suddenly floated above Natsu and the atronachs and without another second passing, the hammer began to drop with great force. Natsu screamed as he got out of the way as another spell was cast.

"Summon Frost Atronach!" The flame atronachs suddenly disappeared and were replaced with the giant ice-like creatures who were able to take the blow from Gray with ease.

"These guys again? I thought we got rid of them!" Soon enough, all of the guild members were back on their feet ready to attack the intruder.

"I didn't think I would have to use this spell in order to defend myself but there's just too many of you. I'm sorry in advance." Erza, Natsu, and Gray eyed him cautiously as mysterious orange orbs appeared in his hands. "Hysteria!" An orange light soon engulfed the guild and before anyone knew what was happening, 95% of the guild ran in terror from the shadowy figure!

"What… what's going on!?" Natsu and Gray looked around to see fear-stricken faces on some of the members of the guild who ran past the figure and into the streets of Magnolia leaving only Erza, Mirajane, Natsu, Gray, and Lucy and that was only because Mirajane was trying to calm her down. "What did you do!?" Natsu asked angrily. The question fell on deaf ears as it only enraged the rosette even further. "Guren Bakuenjin!" Natsu began to swipe his arms in a circular fashion creating a powerful and highly destructive, torrent of flames to try and finish the battle.

"Are you crazy Natsu!? You're going to burn the guild down!" Gray exclaimed as he tried to calm the dragon slayer. And before the attack was unleashed, another spell was cast.

"Pacify." A bright green orb was quickly shot at Natsu which suddenly calmed him down.

"So what are we doing today?" Gray's eyes widened and his jaw dropped while Erza was trying to make sense of what was happening. And then, a flashback shot through Erza which involved Makarov telling her of an old friend.

"Your name is Josh isn't?"

Notes: Hope everyone enjoyed the first chapter. I do realize the chapter may have been lacking in the pairing but we will soon see it. Please let me know if you enjoy this writing style so far and what you think. Thanks!