Game designer Li Mu, by chance, entered the early Tang Dynasty. There are invincible iron armor in the Tang Dynasty, and the unstoppable Bianqiao Alliance. There are Tian Khan's civil and military skills, and the decline of people's livelihood caused by years of war. Wu Zetian and Li Zhi are still in their infancy, and Li Chengqian is just a studious child. In this era when crisis and encounters coexist, Li Mu came with the system, let's see how he shakes his head and tail, and freely Zhenguan! What will be changed when a butterfly flaunts his wings?