Da Qin: I Am the First Emperor

The King of Special Forces travels back to the end of the Warring States Period. He first violently beat Ying Zheng with the Taizu Long Fist and became the Guard Order and Xianyang Order of the Qin Dynasty. He also became friends with Meng Tian and Yan Dan, made friends with Li Si and promoted Zhang Han, defeated Xiang Liang and rescued Li Mu. He hoarded money, started a business and made goods, and manipulated Lu Buwei, the best businessman in the world. He improved farming, strengthened the country and enriched the people, and saved the people from fire and water. You, Ying Zheng, can conquer the Six Kingdoms, and I, Tian Gui, can conquer the world... After all, who is the First Emperor?