Atsushi is caught in a forbidden relationship with Rei, his father's new wife. With each passing day, his desires grow stronger, eventually escalating to the point where they have sex within two seconds of his father leaving the house—an extreme and dangerous situation. Despite knowing full well that their actions threaten to destroy the family's trust, Rei becomes addicted to the pleasure and thrill of being with Atsushi, whose sexual dominance surpasses that of her husband.