Natsu is a female student with a cleanliness freak that even her family can't touch. One day, the director of the volunteer center she was participating in asks her to deliver rations to poor families, but the place she visits turns out to be a nest of perverted old men waiting to rape her... She is dragged into a room that smells of semen and is forced to have raw sex. She violently rejects the filthy existence that she hates to death, but she climaxes multiple times as the man pistons her repeatedly and cums inside her. As a result of being made to experience dirt and pleasure and having her sense of hygiene destroyed, Natsu...