The world's oldest Citibank issues an unlimited credit card known as the Black Card because of its color. There is no such thing as overdrawing, and purchasing a plane with it wouldn't be an issue. Beyond that, the bank would also provide the customer with the utmost priority service, fulfilling all sorts of requests, even the unreasonable ones.
Black Card holders can't apply for it on their own; the bank extends invitations, and the number issued is extremely scarce. When you pay with a Black Card, it's guaranteed to shock everyone present.
"A Black Card..." The manager's eyes were about to pop out of his head; he'd never seen a Black Card in all his years. He immediately told a waiter, "Notify the mall manager right away."
How to serve a Black Card user was beyond him.
Bai Zhen and Bai Wei were also dumbfounded; they had vaguely heard of the Black Card but had never seen one.
Bai Zhen immediately shouted, "That card of hers is fake."
