NTR during delivery: A newlywed wife, a professional driver, is attacked inside her car during a delivery. (Kominato Yotsuba, START-350)

Because of her husband's debts, Yotsuba is forced to work at a transportation company. She suffers bullying from her neighbor, Nakata, who is also a veteran driver. Yotsuba endures it all for the sake of her family, but one day her dissatisfaction stemming from frigidity is exposed, and she becomes hopelessly addicted to the pleasure of strong male organs, beginning to repeatedly engage in extramarital sex...