In 2067, the ongoing low birth rate problem and household debt become a big problem around the world.
To solve this problem, the leaders of each country come up with new ideas.
It's called the Body Pay system.
This story is about a young Japanese person who is conducting a test bed prior to the application of the Body Pay system.

Body Pay is a casual puzzle game where you pay for products brought by supermarket customers by pressing the appropriate control keys.
As you move up the stage, overcome the increasing number of products and customer interruptions to achieve the target score and continue your secret story with the girls.