M wife's troubles

Reiko Otowa is a 32-year-old housewife who married her boss at work three years ago. They built a happy family with no complaints either lovingly or financially, but there was one serious problem between them. Neither of them realized it until they got married, but as they lived together as a couple, they both became aware of each other's masochistic sexuality. At first, she did many things for her husband, but her masochistic husband could not do anything to satisfy Reiko. Reiko is at a loss and confesses her troubles to her landlord...