Transmigrated to an Estate of Millions of Square Meters in the Apocalypse

Sun Xiaoxing transmigrates by accident into a spore-ravaged apocalypse and arrives at a colossal manor spanning tens of millions of square meters. His starting base is a giant weapons factory as large as ten million football fields. The manor is staffed only by automated robots and has inexhaustible resources, while the lands outside teem with zombies and mutated beasts. He explores the various regions aboard a high-speed spacecraft, studies advanced technology, and searches for the mysterious mistress who lives in the tallest tower. All he wants is to open a path home, return to the modern world with the technology, and help his country prosper.