"Unspeakable secrets are hidden within the Forbidden City." During China's Tang dynasty the emperor has taken the princess of a neighboring province as wife. She has borne him two sons and raised his eldest. Now his control over his dominion is complete, including the royal family itself.

"Unspeakable secrets are hidden within the Forbidden City." During China's Tang dynasty the emperor has taken the princess of a neighboring province as wife. She has borne him two sons and raised his eldest. Now his control over his dominion is complete, including the royal family itself.

Story centers on a battle during China's Warring States period, a series of civil wars, which spanned from the 5th to the 3th centuries B.C. Based on a popular Japanese manga, which was in turn based a Japanese novel inspired by Warring States history in China.