Double-Passing Door: Give Me the Doomsday, and the Country Will Help Me Upgrade

I accidentally got a double door and found that behind the door was a doomsday world. "Upgraded double doors can take people into the doomsday world!" "Upgrade yourself to gain all-round ability improvements!" "The points required for upgrading are all obtained by killing zombies!" How tiring it would be to silently defeat monsters and level up by yourself, Lin Fei had an idea and directly handed Doomsday over to the country. From then on, Lin Fei felt great. Not only did he successfully win, He also became a national treasure in the eyes of the country! "The first iron rule is to protect Mr. Lin at all costs! " "You can take real money and silver as you please, but the country's GDP shouldn't skyrocket? " "Mr. Lin, we found another group of survivors, including a few good-looking ones! " "I say that I admire you and hope to receive your blessing..." "Ahem, keep this matter low-key and we'll talk about it tonight..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.