Akiyo Matsubara got married at 20 after an unplanned pregnancy and has been a full-time housewife ever since. Now 50 years old, she's actually the mother of three children—something hard to believe given how much she's changed from her younger self. Back then, she strongly desired marriage and quickly tied the knot with her husband, a government worker she met through a friend, raising their children together. However, as her kids grew into adults and she reached 50, she realized she'd never had any professional work experience, leaving her with some regret. Hearing her daughter say, "These days, 30 isn't even an age to start panicking," deeply affected her mindset. Currently, she has sex with her husband about three times a month, always following the same predictable, monotonous routine. It's in this context that she expresses a desire for an extraordinary experience unlike anything she's done before—drawing her toward this unique and special situation.