Michiru, a wife who feels lonely after her husband goes missing, devotes herself to caring for her father-in-law Ryozo. Not only that, but because of her husband's debts, she is violated by the yakuza-like Sagawa, and despite her wounded heart, her body in the prime of her life reacts and she desperately tries to suppress the sounds that leak out so that her father-in-law doesn't hear. Furthermore, her attractive body is also violated by her father-in-law's friend Sugiura... When Ryozo finds out about this, he scolds Michiru for giving her body to another man and gives her obscene discipline.