Hikari, a married woman suffering from a sexless marriage, had been secretly satisfying her unmet desires on her own. One day, her husband's boss visits their home and forcefully rapes her, completely changing her life. As his demands grow increasingly intense, Hikari's long-suppressed sexuality is fully awakened and dominated by him. Her pent-up longing spirals out of control, pulling her deeper into a whirlpool of new, forbidden desires. This impulsive descent continues to shake Hikari's heart to its core.