In 221 AD, at the beginning of the establishment of the Qin Dynasty, Luoyang was designated as the capital. The Emperor of Qin reigned for more than 20 years, but he eventually lost his body to injuries and illnesses sustained in the war, and died at the age of 54. Then the prince---Qin Jin ascended the throne. He began to attack the accomplices of Prime Minister Ji in the DPRK little by little. He gradually distanced himself from the Queen Mother and wanted to build a court of his own.