A female college student falls into a creampie soapland

Ayu is a cheerful and energetic college student... she visits a frightened sex shop and is given a shocking practical instruction interview that same day...but she still doesn't know about it. The selling point of this shop is that raw creampies are OK without a condom... and is so scared of her first work that she tries to escape, but is caught, and her expression is distorted as a customer forces her to serve her with creampies...