A female college student falls into a creampie soapland

Yuki is an honest, cheerful, and slightly embarrassed female college student... She is intimidated by an interview at a sex shop she visits with fear, and the same day she is given a shocking practical instruction interview...but she still doesn't know about it. The selling point of this shop is that raw creampies are OK without condoms... and not only is it sexually developed to allow you to go out to the store, but the expression on her face is clouded when she is forced to serve creampies by sticky customers.