The System Deceived Me About My Life Span Just to Make Me Work for It

I get a hundred billion. But why is there only one day left to live? Can you gain longevity by working for the system? In an extremely cold world, why did this man blow up the mountain with one punch? There is an outbreak of zombies. You call this building tall a zombie! Why are there mechas in the doomsday wasteland? But all this is just the tip of the iceberg, there is a world outside the world and we are just trapped in a box. Everyone is just playing a game.