Secretary Rope Discipline (1981)

Secretary Sayo is engaged in corporate espionage for his boyfriend, the upstart-leader of a rival company. But she is arrested by the CEO. Poor girl is captured and taken to an exclusive torture chamber in a corporate mansion. While she is punished, the boss's son becomes in love with a woman with gorgeous white skin and assumes disciplinary duties. Between stretching, whipping and torturing with a wooden horse, she finds time to protect her body with a complex tattoo.