As soon as Lu Zhaohan opened his eyes, he became the deposed prince of the Yin Dynasty. He held an imperial edict of death in his hand, and the civil and military officials of the court looked on with cold eyes. He tore up the imperial edict in public, staining the dragon pattern with blood, but the people in the city knelt down and shouted "Your Majesty" - just because thirty miles outside the city that night, 70,000 border troops were waiting in formation. The leader, Jiang Jinchen, held the military talisman in his hand and his eyes were like cold iron. No one knew that the demoted deposed prince was actually the son of Zhenbei Hou, whose family was exterminated three years ago; no one dared to mention that Jiang Jinchen, who was armed with heavy troops and silent as a ghost, was once a slave saved by Lu Zhaohan himself. Now that the imperial edict has turned into dust and destiny has been reversed, one is a lonely king with a blood feud, and the other is a war ghost with no loyalty. They join forces not to reset the country, but to change the country's surname.