When fourteen-year-old samurai apprentice Seikei is sent on a mission by the shogun, he believes it to be a simple one: Convince the 14-year-old emperor to resume his ceremonial duties. But when the emperor is kidnapped in an elaborate plot to overthrow the Shogun, Seikei’s mission grows much more dangerous. With the help of a mysterious warrior, he must rescue the emperor before his sacred sword—said to be unbeatable in battle—falls into the wrong hands. Should he fail, bloodshed will stain the land.