Through her AV experiences, Ayaka Muto desire to do more perverted acts has increased. In her fifth film, she experiences real raw creampie with a man other than her husband. Even though she knows it's wrong, she removes her contraception just for a little while and takes the other man's raw cock directly into her vagina. The ultimate sense of immorality that can't be experienced with a condom increases her pleasure even more, and she asks for vaginal ejaculation even though it's her ovulation day at home.