The Tang Dynasty Library

He accidentally traveled to the early Tang Dynasty and became a down-and-out scholar. Everything started from getting rid of hunger and cold! Open a restaurant, set up an academy, learn magical skills, and teach the art of war! Music, chess, calligraphy and painting, machine battle formations, Qi Men Dun Jia, martial arts secret books, they are all in my library! The Turks are invading, let's go, let's destroy the Turkic royal court! Goguryeo invades the border? Go and capture all their men and women! The Tubo invaders, come on, follow me to the plateau! Gaochang invades... Tuyuhun invaded... Let them wait and line up one by one~