Once upon a time, there was a man who had a Pokemon he loved very much. He was actually the King of the Kalos region. The King and his beloved Pokemon lived side-by-side with one another, happily living together in this time of peace.

But that time of peace did not last for long.

A war broke out in Kalos, and that Pokemon went to fight in the war, where she was killed. The King received the body of his beloved Pokemon several years later, and out of unspeakable grief, he built a giant device to restore her life. He wanted to bring her back, no matter what the cost was. He succeeded, but was unable to overcome his despair and turned the machine into a weapon, with which he destroyed both sides of the war to bring it to an end. He could not forgive the world that hurt the Pokemon he loved. He just couldn't...

She must have known. The Pokemon, she must have known that the lives of several Pokemon were sacrificed just so she could be given life again. She felt betrayed by the King. How could someone sacrifice the lives of so many Pokemon just to save one...? It was a heartbreaking decision, and it affected both the King and her greatly. All she ever wanted of him was to be a good man, and then he went and did something like this.

The machine granted that Pokemon eternal life, and the King was cursed to live out the same fate. Neither one of them died, even centuries later.

The King wandered the land aimlessly in search of his Pokemon who abandoned him, and his broken heart just couldn't let go. He wanted her back. He missed her so deeply, and even after he realized what he did was wrong, she still did not come back.

He never saw her again. And to him, that was a burden far worse than wandering the earth forever and alone.

The King's younger brother had that weapon buried in hopes of it never being used again; the key to it was kept safe on a chain around the King's neck. Although, it was likely the weapon would be used again, and it was even prophesied years later.

After the ultimate weapon was fired, it took time for Arceus to restore the land and create new Pokemon to occupy it. In honor of those who perished in the war, two new Kalosian guardians were born: Xerneas and Yveltal.

Xerneas was rumored to take the shape of a blue and black deer with golden and rainbow horns. She was the symbol of life itself, and with her powers, she could heal. She wandered forests and kept out of man's sight in order to keep herself safe and hidden away from those with greedy souls.

Yveltal was quite the opposite, and he presumed that was exactly why he and Xerneas did not get along. This Pokemon was a great Y-shaped, red and black flying beast with piercing blue eyes that glowed sharply. He drained the life energy of others to heal himself, and he was the symbol of death and destruction. He presided in mountainous regions, having to keep himself hidden from the likes of humans, just like Xerneas.

They knew exactly when the ultimate weapon would be fired again. Arceus had predicted it would be sometime in the year 2016, and Xerneas and Yveltal had to prepare for it.

Xerneas had knowledge in advance that she would be incapacitated at the time of the chaos and would be unavailable to help, so she decided to put her faith in Yveltal to save the day. Originally, both Pokemon were going to pick a human child to make their 'savior.' But, with Arceus's prophecy about Xerneas, she decided to give up on the boy she was originally going to pick to be destined for greatness and let Yveltal pick one, and only one, for himself.

And he did. Working together with Arceus to see future souls yet to be born, he found a fiery spirit similar to his own that would be born into the body of a girl who would grow up to be a strong individual, capable of stopping those intending to fire the ultimate weapon. The boy Xerneas was originally going to pick would grow up and live a confusing, difficult life, and Arceus foresaw that both the savior and the boy would cross paths one day. He foresaw that the boy would be confused as to why he could never beat the girl, but he did not tell Xerneas or Yveltal of this.

Two souls intertwined, and only one was chosen for the role of a hero. But that didn't mean both wouldn't become heroes on their own some day.

When she came of age, on her sixth birthday, Xerneas entered the girl's dreams and told her a bedtime story. It was a sad story about a war and how one small glimmer of hope in the future would someday put and end to the darkness. When the girl woke up from that dream, Xerneas had given her the power to communicate with those of her kind: Pokemon.

She frequently visited the girl in her dreams to talk to her as she grew up, since Yveltal was a big jerk and would probably scare the girl off, but one day...she stopped. Xerneas had been captured by greedy human beings five whole years before the ultimate weapon had been prophesied to be fired, and the girl grew sad and lonely.

Her soul was red like fire, and his was blue like ice. She was similar to Yveltal in personality and potential for darkness, while he was similar to Xerneas because of his good heart.

The two souls went down different paths, and they would not see each other again for some time, nor would they ever know that they were intended to share the role of being a hero.

But perhaps all rules are meant to be broken in time.

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"SERENA! OVER HERE!" Shauna waved frantically at the blonde entering Aquacorde Town from where she sat at a picnic table.

Serena quirked an eyebrow at the energetic brunette, and Calem continued to walk by Serena's side. He laughed and shook his head at Shauna before joining her and his other two friends at the table. Although, he did pull out a chair for Serena and help her sit down first like a gentleman.

Somewhere far, far away...

Yveltal looked off into the blue sky at something thousands of miles away, furrowing his brow. "So, it is time... My champion and Xerneas's lost soul have finally been reunited. The prophecy is coming to pass at last..." He turned his head to glance back behind him at the cave he dwelled in. "I may not like you, Xerneas, but that does not mean I will not save you from the fate that no Pokemon deserves." He spread his wings and took off into the sky, flying higher and higher. "It is time to meet my champion for the first time. And now... I must warn her."

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Instead of doing a prologue, I decided to do this XD I'm so excited to see that this story has readers already! Thank you so much for reading my story ^-^ it means a lot to me.

Read, comment, vote, and enjoy!