Legend of Basara

In a small village, twins are born: a boy, Tatara, and a girl, Sarasa. The prophet Nagi declares that Tatara is the chosen one who will free Japan from the tyrannical rule of the King and his four sons. But when the ruthless Red King slays Tatara, Sarasa must take on her brother's name and responsibilities and set out to free Japan and bring vengeance to the Red King.