Bi-jukujo: Suki mo no shikijô kyô (2013)

Chika is an office worker who plays the role of a submissive woman during the day and transforms into a vixen in her off hours. On the other hand, she is also dating a married man, Kenji, on the premise of remarrying. Moreover, she has decided not to have sex with Kenji until they get married. Kenji is crazy about her and make sex her every night in his masturbation fantasy. One day, one of the many men, Naruta, comes to Chika's house to deliver a forgotten object, which leads to an unexpected incident..