Surrounded by Princesses and Empresses, How Can I Not Be Invincible?

Time travel + comedy + invention When Qi Jingyuan traveled through time and became a citizen of the Great Zhou Dynasty, the first thing he did was to use his mathematical knowledge to accurately blow up the river embankment. "This is so high..." "Returning to the Holy Spirit, the high-level magic number of understanding the universe through heaven and earth can be referred to as the high number." "Is this high number really so magical?" Emperor Wu's eyes were full of doubts. In her eyes, if the pages on her hand were drawn on yellow paper, they could be used directly for practice. … In this world of war, internal and external troubles, Qi Jingyuan opened a company and started an industry, punched traitors on the spot, trampled on traitors of enemy countries, and became CEO to marry the female emperor!