I do not own Yu-gi-oh Gx, all rights belong to their rightful owners.
When the universe took its first breath of life, it was divided into two parts-light and darkness. Soon after its creation, light vanished without a trace. Leaving darkness to fill its other halves void. Soon life began to sprout within this gentle darkness; filling the galaxy with all forms of life like stars against a night sky. But this wondrous peace could not last forever.
Centuries passed and the light appeared once again, intending to wipe out all life that the gentle darkness had created. That was when the darkness chose a certain individual, yet to be born, to hold the power of the Gentle Darkness to defeat the terrible Light of Destruction. However, something occurred that not even the Darkness could have predicted. When the chosen one was finally born, one had become two-splitting the power of the Gentle Darkness in half in the form of twins to everyone's amazement. The twins were born to a noble king and queen, rulers of one the eleven dimensions from were beings we like to call, 'dual monster spirits', originate from.
The first born was named Haou, while his brother was named Judai. And both were dearly loved by the king and queen of that strange world. As the twins grew towards adult hood, the king enlisted help from the princes' mutual friend-Yubel, to be transformed into a spirit to watch over them until they could control their powers when they were adults.
When Haou found out about this, he swore that he would only love Yubel and his brother. For the prince and Yubel were in love, (long before Yubel's transformation) and the only one who knew and supported the secret lovers was Judai. Several years passed and prince Haou slowly became cold and distant to everyone, except Yubel and Judai. One day, it was declared that Haou would succeed to the throne early for the elders believed that the twins were now ready to fully control the power of the Gentle Darkness.
When the day of the coronation came, everyone was excited. They believed that the twins would mark the end of the Light of Destruction, and would usher in a new age of peace and prosperity. However, their cries of joy would soon turn to cries of fear. For just as prince Haou was being crowned, Light's invading army attacked. The invading army caused untold amounts of destruction, and took many lives before the invading forces finally receded. The lives of Haou's parents, Judai, and Yubel were lost during the violent invasion; snatched by the lights merciless wrath.
Haou, and a few other survivors, were the only ones left from the once great kingdom. That day Haou vowed to destroy the Light of Destruction no matter the cost. But, his extreme anger, hatred, and sorrow tainted his powers twisting him into a being of ruthlessness and cruelty. And slowly, one by one, Haou started to take over the other dimensions; until there were very few left that were free from his iron grasp. Though, despite all of his power, Haou still felt a great emptiness. After all, he was only one half of a whole.
