STARS-823 I was once raped by a slut who I hated, and I was given a date sex drug, and the next thing I knew, I found myself in a room at an inn, being fucked non-stop until morning... Hyakuninka

Monica, a second-year office worker, is going on a business trip with her section manager, who she doesn't like, but there are some bad rumors about him being a slut who's a new graduate. No matter what she is trying to hide, she herself was invited out for drinks a year ago when she was a new graduate student and was involved in a suspicious situation. Because of this background, she thought she was paying close attention on the day of her business trip, but due to Yoshino's clever trap, she fell into Yoshino's poisonous fangs again...