She was drugged and raped on a date by the woman she disliked, a man she had previously assaulted. When she discovered he was already in her hotel room, she was repeatedly raped without rest until morning… (Hyakurenka STARS-823)

Hyakuninka, an unremarkable office lady, is assigned to a business trip with her difficult-going section chief. However, this man is actually a lecherous man with ulterior motives towards a new female colleague, leading to unpleasant rumors. Moreover, Hyakuninka herself had been taken to a suspicious place by him after drinking a year ago when she was a new employee. On the day of the business trip, despite thinking she was being very careful, she still falls into Yoshino's cleverly laid trap…