Journey to the Star Sea: I Dominate the Galaxy by Rubbing Starships with My Hands

[Science fiction + interstellar civilization + system flow + multiple female protagonists + interstellar hegemony] During the enthronement ceremony, the sky cracked. The alien fleet hangs high, and a cold announcement is made: 72 hours to exterminate the entire race. In a desperate situation, Lu Chen awakened the [Craftsman God System]. When the alien Star Destroyer approached, he silently took out "Tiangong Kaiwu". Energy shield? Use "watertight compartments" to break it! Warp drive? Take "Luban Wooden Kite" and rub it out! The alien main force arrived and were dumbfounded - this low-level civilization actually installed an engine on the earth and ran away! Since then, the Milky Way has had a hard-core legend that uses abacus to fight interstellar wars, build starships out of elm wood, and drag its mother star across the universe!