{Post-apocalyptic + reborn + decisive and ruthless + no romance + hard-hearted + invincible + no self-sacrificing heroine, no harem}
All kinds of natural disasters are on the way, along with possible species mutations, viruses, and more.
Guo Wang is reborn two months before the apocalypse and activates a million-fold duplication System. He takes everything for free and stockpiles an endless supply of goods, living high off the hog after the apocalypse begins.
When the end times arrive and everyone else is worrying about finding food, Guo Wang is eating king crab and drinking red wine. When people are fighting for a mouthful of water, he is taking a bath and splashing around, enjoying himself however he pleases. If anyone comes looking for trouble, he sends them straight to the Western Paradise to meet Buddha. They can become Buddhas right there and then, and save him the trouble of hearing them say thanks.
The countries and cities in this story are all fictional. Any resemblance is purely coincidental.