Back Before the Apocalypse: Building a Shelter from Scratch

Lu Chen, betrayed by his girlfriend at the end of the world, transmigrates back to the time before the apocalypse began. To his surprise, he still has the spatial ring he made in his previous life. No time to waste: he'd better stock up on supplies first! What? You say he has no money? With the newspapers from his previous life, he'll buy a two-hundred-million lottery ticket to calm his nerves! After dying alone in his previous life, Lu Chen decides to try a different approach this time. He'll establish his own base, recruit talented people, and keep his head down until the end, just to see if he can outlast the apocalypse!