Rebirth at the End of the World: Hoard Tens of Billions of Supplies at the Beginning

Lin Feng, the overlord who had struggled for ten years in the apocalypse, was betrayed by his most trusted brother and woman, and died tragically in a wave of corpses. When I opened my eyes again, I went back to a month before the end! At the same time, the mysterious [Super Mall System] has been activated - money can be exchanged for unlimited doomsday points to purchase all black technologies and god-level abilities in the future! In this life, he vowed to make up for all his regrets. Crazy selling off assets, spending tens of billions, building an absolutely safe doomsday fortress, and hoarding mountains of survival supplies. When a month later, zombies were rampant, order collapsed, and everyone was fighting for a piece of bread, Lin Feng was in the fortress, leisurely sipping red wine, armed to the teeth with future technology. Traitor? In this life, you are not even qualified to kneel before me!