Miho Toono, having moved from the city to her husband's hometown, struggles to fit in and feels deeply isolated. Into her loneliness steps her husband's boss—a respected local senior—who begins sexually dominating her. While her husband sleeps, she is forced into giving blowjobs, performing full-body washes, and enduring torment with sex toys, gradually becoming addicted to the pleasure he coerces from her. The story unfolds this twisted relationship amid local social ties and her marriage, depicting a disturbing affair rooted in betrayal and control.