The Zombies in the Doomsday Supermarket Swiped My Membership Card

The apocalypse is coming, zombies are rampant, others are busy running for their lives, but I am busy opening a store! The "apocalyptic convenience store" is officially open for business. Brains are exchanged for points, plasma is used as gifts, and zombie customers line up to swipe their membership cards! I make money when others kill monsters, and I get rich when others survive. Zombie customers are more polite than humans. Points are exchanged for brain flowers, and top-ups are given for plasma. Business is so booming that even human survivors are jealous! Who says you can only live an ignoble existence at the end of the world? I want to create a business empire in this ruins! ——Welcome to the weirdest convenience store in the apocalypse! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.