When Lost Flowers Bloom
Prologue
When Azumi and Ashyah were born, it was forbidden, a taboo. They were abominations, monsters, the absolute "no no" of all worlds. They were the children of a powerful Arrancar and a high member of the royal family, as in The Royal Family of all of the freaking Soul Society. They were not accepted anywhere, and to keep her status as a royal family member the mother of these two monsters discarded them, the father taking them in. Unlike the mother, these children were everything to the Arrancar. He hid them from the royal family's assassins and they lived together in the deepest depths of Hueco Mundo, where the father trained the two twin girls, for the sake of their survival.
Azumi, the older twin, was a true fighter, and enjoyed a good fight as any Arrancar. She was brazen, quick tempered and very protective of her little sister. When Azumi was seven, her father gave her a black metal staff, to which changed into two separate daggers when twisted at the center and changed its length in accordance to the beholder's needs. Ashyah on the other hand, was another story. Ashyah was quite, artistic, and clumsy. She often sang nursery rhymes, even though no one had ever taught her them. It was only until she was five did her father realize that she could tell premonitions of the future. She shows them symbolically through her charcoal drawings and singing. Both her father and sister are not sure whether she's autistic or mentally unstable (which is a nicer way of saying she was insane). And when she was seven they found out that it was neither, it was simply the result of her ability to show illusions. She was just not strong enough to outwardly show others her illusions until then.
As Azumi's physical abilities grew and Ashyah's mental abilities grew, they learned to work together in fighting. Azumi would fight the enemy and Ashyah would confuse, distract or just plain creep them out. Though, as this power started to attract attention, their father had to make special metal collars to not only conceal but contain their strong powers.
The twin's father never had an issue in telling them apart, not only did the girls have completely opposite personalities but they also had different appearances, despite them being twins. Both girls were the same height, had the same black raven hair and pale white skin but Azumi had the blood red eyes and straight hair of their fathers while Ashyah had the crystal blue eyes and curly hair of their mother's.
When the girls were nine years old their father died protecting them from the Soul Reaper assassins sent by The Royal Family. They have been running around like trapped mice in the sands of Hueco Mundo ever since.
That is, until they found the portal to the human realm. Where they stayed for hundreds of years, hoping the soul society would forget of their existence.