My name is Liu Kai. I have traveled through two thousand years and found that history books are all "filters". Qin Shi Huang asked for immortality? That's because I tricked him into engaging in employee team building! Cai Lun improved papermaking? That's for mass production of butt wipes! I drank with Huo Qubing, watched Li Bai become drunk and went crazy, and taught Shen Wansan how to play futures. History is like a manual that I spoiled.