She becomes lovers with her admired female boss, a relationship that consists solely of sex. (Tsukumo Mei BF-683)

I accidentally saw my female boss and her subordinate leaving a love hotel. Curious about their relationship, I asked my boss. She actually invited me to have sex with her, saying, "Would you like to try making love with me?" Although I have a beloved wife... I decided to establish a purely sexual relationship with her...