Born under a prophecy that will liberate and unite Japan, Sarasa has had to take her brother Tatara's place as the "Boy of Destiny." Fighting for the oppressed, Sarasa journeys across Japan to gain allies and defeat her enemies--all while keeping her identity a secret!
As the war for Japan rages on, the battle reaches the Royal Castle itself. Sarasa penetrates the castle's defenses to confront the traitorous Asagi. Shuri, wounded and crippled, pursues Sarasa even though the chase may kill him. Ageha descends into a labyrinth beneath the castle to stop a deadly mechanism designed to destroy them all. And King Ukon, now a pathetic, desperate shell of a ruler, grimly awaits Tatara's arrival!