Balsa, the spear wielder and bodyguard, is visiting the New Yogo Empire. She is hired to protect the Second Prince, Chagum, who is endangered because he is possessed by a being despised by his father, the Emperor,
who ordered his assasination. The two go on a perilous adventure for the survival of the prince. Throughout the story, Balsa's past will come to light and they will uncover mysteries about Chagum's condition while developing a family-like relationship with each other and others.