A zombie virus breaks out and 99% of the world's humans mutate. I, a rich second generation who is greedy for life and afraid of death, have awakened from the [Black Heart Businessman System of All Realms]. An absolutely defensive RV that can connect all realms to purchase goods. Cost? The system takes a 99% commission, and I have to use the survivors' lifespan and soul as fuel. So, I became a profiteer in the last days: a bottle of water, in exchange for your three years of life. A gun can buy you ten years of youth. When the zombies besieged the city and the safe zone was about to fall, I drove my RV into the battlefield. Turn on the loudspeaker: "Gatling is sold in the front row, limited time discount, only ten years of life!" Watching the big guys rushing to sacrifice life, I counted the life points in the cab, and tears flowed down from the corners of my mouth.
