Enter:Lucifer D Roza Itami, the daughter of two royal families:The Shinigami & The Roza. Itami comes from the Underworld, where all Death gods live & breed. Her Father is the king of the Underworld, while her Mother is the heir to the throne back on Siren island in the Grand line. Itami also has a little brother called Tsumi, that she loves very much.
One day, Itami had found that her Father Lucious had murdered Tsumi, and was secretly waiting for Itami to age, so that he can use a secret power that Lucious had cursed inside of her since she was born. When her & her Mother tried to run away, Lucious had kidnapped Itami again, and forced her to undergo hard core training, so that one day Lucious will take over the world of above:the Grand line. Itami escapes somehow, and finds herself onboard the Moby dick.
She then became a pirate for a year or so, but soon meets Portgas D Ace.
How will the two turn out?