His name is Qin Xu. There is no such name in the history books.
Burning books, burying Confucians, and letting the magicians go, practicing magic in Mangdang Mountain, attracting wind in Pengcheng, stagnating Qi in Gaixia, retreating after success, and being wiped out by Empress Lu.
From then on, there was no such person as Qin Xu in history. But he's still there.