The world of Croket! is inhabited by both humans and exotic creatures, such as anthropomorphic animals. In this world, individuals known as Bankers travel around the globe to collect magical coins called Kinkas using their Kinka Banks. It is said that Kinkas activate the appearance of the Bank Wizard, who will grant the wish of any Banker who collects enough of them. The story mainly revolves around Croket, a young and scrappy Banker with incredible strength. His wish is to revive his father, a legendary Banker named Burger, who was said to have been defeated by a villain Croket knows as the "Black Gown Man."