It began in the Chu Dynasty, when powerful ministers were in power and imperial power fell to the side. In order to cling to the powerful, the Liu family, a minister of the Ministry of Civil Affairs, wants to marry their eldest daughter Liu Mengli, who is unrivaled in beauty, to Xiao Gu Chongxi, a young emperor who is frail and sick and is controlled by the Queen Mother. Liu Mengli refused to obey even to the death. In order to avoid the crime of deceiving the emperor, the family forced their second daughter, Liu Fuyi, to marry him instead.