SSIS-157 While on a business trip, I unexpectedly end up sharing a room with a sexually harassing middle-aged boss who I despise... H-cup new employee Konan Koyoi, who unexpectedly finds herself having sexual intercourse that lasts until the morning.

Konan Koyoi's first attempt at a full-fledged cuckold drama work! - Koyoi, a new employee, despises her manager who sexually harasses her every day. - One day, she gets drunk with a manager she hates who repeatedly sexually harasses her on business trips, and ends up raping her in a shared hotel room with no escape. - She was brought up as a young lady and had little experience, but the feeling of the manager's big dick running through her body made her climax unconsciously. - Koyoi falls into an affair that lasts all night, and while feeling guilty towards her boyfriend, she repeatedly engages in extramarital sex in search of pleasure...