I Owe History Two Thousand Years

In 1840, Qin Heng was put into an archaeological coffin and sank into the sea. In a blink of an eye, he returned to 221 BC and became Qin Shihuang's friend during the proton period. After Qin Shihuang ascended the throne, he was given the surname "Qin" and named himself Qin Heng, Cangwu, and Suhuizi. Qin Heng has two secrets. One is that he is a time traveler. Unfortunately, he is of average skill and only knows a little about the things of that era. Second, the coffin turned into a "bamboo slip" and a pen. However, there is nothing on the bamboo slips, but the pen is a good thing. It seems to have endless ink for writing. Originally, Qin Heng was ready to use the name of Qin Shihuang's friend to slightly change history, be more ruthless to the remnants of the Six Kingdoms, be more kind to the people, build the Great Wall, slow down the Afang Palace first, and other ways to prolong the fate of the Qin Dynasty. After stabilizing, he would present the map to attack the world. Unfortunately, it seems that because of his arrival, history has changed... On the day Qin Shihuang died, writing began to appear on the bamboo slips...