Datang: I Want to Revive the History of Datang for Three Hundred Years

After traveling back to the Tang Dynasty, he was told that Chang'an had been captured by Huang Chao. Go all the way west, save the Guiyi army and conquer the Western Region. I, Li Xin, come from Qianling and want to revive the Tang Dynasty for three hundred years! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.