Currently active as a doctor, Kuroki was completely immersed in her studies until she obtained her medical license, so she never had a relationship and first encountered a man when she was 25 years old. However, after she discovered the pleasure of sex, she became madly addicted to playing around with men. She seems to have calmed down since getting married, but she still keeps a sex friend. By the way, she tells her husband that she has been with three men, but in reality it seems that the number is over three digits. The reason she ended up appearing in this film is because she broke up with her sex friend, with whom she had excellent physical compatibility. After breaking up with her sex friend, she had relationships with other men, but was never satisfied, so she appeared in this film to satisfy her overflowing sexual desire.