Xu Liang, a soldier-king skilled in both medicine and martial arts, earned unparalleled honors for his country and founded the Shadow Palace, a powerful patriotic underground organization. He traded his youth and blood for an era of peace. He succeeded in protecting his country, but trouble came to the home he loved. His sister was kidnapped and threatened, and the family business was on the brink of collapse. In a fit of rage, Xu Liang retired from the military and returned to the city, launching a series of reprisals and following in his parents' footsteps.