Konan Koyoi takes on a full-scale cuckold drama for the first time! New employee Koyoi despises her boss who sexually harasses her every day. One day, she gets drunk on the boss, who she hates and who continues to sexually harass her even on a business trip, and is raped in a hotel room where she has nowhere to run. She is brought to climax by the sensation of her boss's huge dick running through her body, which is inexperienced as she was raised as a rich girl. Koyoi falls into a night of sex that continues without end, and although she feels guilty about her boyfriend, she continues to have extramarital sex in search of pleasure...