The convenience store is located in Tokyo, and although the female staff are extremely beautiful, their sales are extremely low. So the owner introduced a certain system, and sales skyrocketed! You can make a point card at the convenience store, and if you charge the card, you can buy as many products as you want and get points! You're probably thinking, "What? Isn't that normal?" But here's the real story. Depending on the points you get, you can put your fingers or dick in the female staff's upper and lower mouths as much as you want!