The princess of the former dynasty suffered from a blood feud and was forced to bind the mysterious "Mountain and River Map System" and hide in the enemy's capital as a merchant. She improved farm tools, built water conservancy projects, and relied on the power of people's hearts to make progress step by step, but she didn't know that the system was actually transformed by the real murderer who wiped out her family. When the cold-blooded regent Xiao Heng points his sword at her throat, and when the painstakingly built foundation becomes the altar for the resurrection of the imperial master - the Phoenix woman will eventually understand that the real revenge is not to overthrow the dynasty, but to make this country no longer need an emperor.
