"Romantic experiences are few and far between..." 40-year-old Hazuki Eri. A full-time housewife and mother of one, she marks ten years of marriage. Though blessed with striking looks, her romantic history is extremely limited. With her husband, they've become like comrades-in-arms in parenting, and intimacy has long since faded. Before she knew it, she reached her forties with her erotic experience level still stuck at one. Fearing she might lose her allure as a woman, her suppressed desires begin to stir. She can't forget the one time she experienced a creampie long ago, and now, more than ever, she finds herself wishing, "If possible, I'd like to do it again today." This beautiful wife, who's secretly lustful but never dared admit it to her husband, finally begins to set herself free—starting today.