Koyoi Konan is a real cuckold and challenges the drama work for the first time! Koyoi, a new employee, looked down on the manager who was sexually harassing every day. One day, she gets drunk by a director who hates repeating sexual harassment even on a business trip, and is fucked at a shared room hotel where there is no escape. Her sensation of the director's big cock running around the body that was raised by her young lady and has little experience makes her climax unknowingly. Koyoi, who has fallen into her unequaled sex that lasts all night, repeats her affair sex in search of her pleasure while she feels guilty about her boyfriend.