The four of us were invited by my wife's parents to go on a two-day hot spring trip. My wife and mother-in-law look forward to having fun on a trip that has been a while, but to be honest, I feel uncomfortable. This is because this trip was a "child-making trip" that my father-in-law had high expectations of my grandchildren... Even though I tried to hold my wife, she was obsessed with the hot spring inn, and after being subjected to a month of abstinence, I was in agony. While having no choice but to shave around the inn, I happened to see Yuka taking a sexy bath...