Good Law-Abiding Citizens at the End of the World

The young man counted out a wad of money and placed it on the unattended cashier. He asked out of curiosity: "Brother Qi, when all the people in the apocalypse have disappeared, why do we have to pay when we come to the supermarket to search for supplies?" Qi Ren carried the big and small bags without looking back. He just said, "To remind myself where I came from." … "Brother Qi, Brother Qi, we don't have enough supplies ourselves, why do we need to give them to those children?" The young man looked at the few small black dots going away and couldn't help but ask. "To tell us where to go." Qi Ren looked at the dilapidated city in the distance and replied.