I, the Richest Man in the World, Spent All My Money Building Mechas!

In 2023, Lei Yuan became the richest man in the world, and the system also woke up on this day. While the whole country was celebrating, Lei Yuan learned through the system that a year later, alien beasts would invade and a catastrophe would come! Lei Yuan immediately announced the news of the doomsday to the whole country, but no one believed it! In order to resist the terrifying beasts a year later, Lei Yuan did not hesitate to spend a huge sum of money to build a mecha factory! Build underground refuge cities in various cities across the country! On the top of Kunlun Mountain, build a mecha base! A year later, when the cold wave hit and alien beasts invaded, all the countries in the world were unable to resist and were completely destroyed! Only in the east, a huge mecha figure walked out of the Kunlun Mountains! Fighting ancient beasts, splitting the sea with one sword, at this moment, Lei Yuan stands on top of the world! "I will use all my assets to buy a place in the dungeon!" "Please! Mr. Lei! I want to go back to the East!" "This is the Miracle of the East!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.