Eagle Sauce: Rabbit, Stop Showing Off, My Legs Are Weak

(Black Technology➕Future World➕Arms Dealer➕StarCraft) The protagonist Zhou Tianyang travels back to the 500s in his soul to help China develop science and technology. Originally a top scientist, I thought it was very simple. But the further back I went, the more wrong things became. Strange things happened one after another The Shanhaihui that controls several big countries The mysterious civilization of Atlantis There is also the civilization of cultivating immortals above the god-level civilization that the system talks about.