Seiji Izumo

This one stars dexterous Shihori Na gasaka, from Masaru Konuma's Woman In A Box 2 (1986) and Erotic Seduction: Flesh Bondage (1987), in a contrived tale of corporate decadence and barbaric behavior. She plays the wife of an up and coming executive who must succumb to the animalistic cravings of the board of directors to protect her husband's position in the company.

Nikkatsu Roman Porno

Pinku from 1982. A studious young man and his two friends hit the town.

I do not stand in the case of emergency! The beautiful married woman who knew the delicate trouble of virginity…. A case full of joys and sorrows that the virginity pervert man who I outrun an emergency brake of the reason, and dashes causes.

16 year-old girl named Aya is infatuated with the proletarian politics of working-class rebel, Miyata. Her sister Sono believes the boy is not a good influence and she allows her ‘Master’ (a powerful Judge with whom she is a mistress) to arranged for the authorities to kill Miyata. After the boy’s death, Aya tries to take revenge against the Master but gets arrested for attempted murder. Due to the Master’s influence, Aya is sentenced to house arrest… at the Master’s home (!). She is soon raped and introduced to bondage and extreme sexual abuse.

Pinku from 1968.

Caught up in the swirling tide of student protests and riots, a young man becomes the unintentional murderer of a policeman. Handcuffed and enroute to jail, he escapes from the authorities and comes across a young woman on the beach, who is intent on committing suicide. The two embark on a passionate and violent affair.