One day, my mother-in-law arrives at the home I share with my wife. An acquaintance has invited her to become a lingerie model, and she has come to Tokyo determined to take the chance. My wife and I persuade her to stay with us for just one week. That night, unable to sleep, I head to the bathroom and notice light spilling from her room. She clearly hasn't given up on the idea and is posing in alluring lingerie. Mesmerized by her, I instinctively reach toward her crotch...