In the third year of the zombie outbreak, the city was reduced to ruins. Zhou Chi's electric car can still run, and there is a courier company's flag in the battery basket. The system refreshes the orders every day, and the addresses are in all kinds of weird places: air-raid shelters thirty meters underground, the fractured floors of skyscrapers, and the center of mutant plant nests. He takes orders, delivers goods, and signs for receipts. Until one day I received an order, and the name of the consignee read: "Myself three years ago."