Mahiro, a full-time housewife, has recently started living with her husband's father, but is worried because the sled does not fit. When it comes to his father, his gentle husband is also reluctant to complain about his wife before he invites him to live with him ... As his dissatisfaction grows, his escalating father-in-law's sexual harassment finally crosses the line ... I'm addicted to my father-in-law's SEX, which I should have hated.