I Am Hu Hai in Cyber ​​Daqin

In 221 BC, which was also the year 1123426007 of the interstellar calendar, the Great Qin Civilization of the solar system unified the eight planets, officially entered the interstellar civilization stage, entered the competition in the universe, and became the 63231st interstellar civilization to explore the universe. And our protagonist Ying Huhai, an ordinary person in the 21st century who happens to have the same name as Qin II, wakes up and finds himself in a cyber-style palace. A middle-aged man who calls himself Zhao Gao tells him that this is the Great Qin. But Ying Huhai didn't believe it 100 times. Who in Daqin has future weapons such as expedition fleets, solar series vehicles, dark matter cannons, mechanical prosthetics, biological weapons, planetary bombs, stellar magic boxes, and chaotic radio waves?