Kuu and the four sisters, the last of the Shidai try and find their place in a world that has turned their back on them. Kuu, heir to the throne of the lands of the West, must war within to decide to follow the enigmatic sisters or his father's plan to place him on the throne of the Emperor. Seiryu, youngest twin of the four sisters, fighting to break through the walls she built about herself must decide between love and family. Suzaku, oldest twin of the four sisters, struggles to keep her innocence in a changing world. Byakko, second oldest of the sisters, struggles to keep her family together while longing to find herself. Genbu, the eldest of the sisters, struggles to understand her place in the world and find happiness in her role as the family's head. Chaos threatens the balance of the world, seeking to destroy the sisters and any that are assisting them in their quest. Torn from a loving family by the threats of war, the whispers of destruction, the Shidai sisters are hurled into the unforgiving, unfamiliar world where they are both revered and reviled. Traveling to keep the hounds of the Generals from discovering their location, the sisters find comfort within each other. Finding themselves trapped, captured, they must find each other and decide whether or not to fight for a world of people who offered them nothing but a cold shoulder. Ghosts of memories of the past haunt them, mysteries of the people of the world intrigue them, voices in their head confuse them between a world long past and a hint of a future yet to be.