"I can't help but wonder if there's a world of pleasure beyond what I know, and it keeps me up at night (laughs)." This is what Yuuko Masuda, a 34-year-old full-time housewife in her fifth year of marriage, says. Before starting a family after giving birth, she worked as a translator and is also a talented graduate from a foreign language university. Her global sensibility inevitably leads her to think, "The world is vast," which also affects her nighttime sexual life... "I'm not dissatisfied with sex with my husband, but is this the ultimate level of satisfaction...?" she wonders. She wants to feel even more, even more fulfilled! With every step, her G-cup breasts sway and bounce, ready to envelop an unknown male organ, provocatively waiting in ambush!!