To the outside world, I play the role of a happy housewife, but for the past two years I have been one man’s sex slave. Sagawa, an investor in my husband’s company, once accused me after I mistakenly blamed him for groping. Claiming the false accusation destroyed his family, he says he will forgive me if I accept punishment, then abruptly binds my body. Unable to resist, I tremble through training that blurs pain and pleasure until I surrender myself completely.