The End of the World Is Coming? Watch Me Summon the Torrent of Steel!

"The United Earth Government declares: The Earth has been hit by an unstoppable genetic weapon, and civilization has entered a countdown to its demise. At this last moment, compatriots, please reunite with your families." … … "What do you mean I'm the only human left after sleeping and waking up?" When she woke up, Baiyu was confused to find that she was the only human being left in the world. But soon, he figured out the ins and outs and obtained the Rust Core, which allowed him to build all buildings and units in the Rust War. "The end of the world is coming? Genetic mutation? Just talk to my steel torrent!" "What?! Enemy warship support? It seems that I can only use that move!" "The beacon has been constructed!" "Di Kong intervenes in the battle!"