“Ken, isn't it time you gave me a grandchild?” My mother-in-law's words leave me shaken during what should have been a pleasant family hot-spring trip. At her request, I abstain for a full month so my wife and I can try for a baby, only for my wife to refuse sex when the day arrives. Frustrated and restless, I wander through the inn and accidentally catch sight of my mother-in-law bathing. Desire overwhelms me, leading to repeated creampies over the two-day trip—and a pregnancy I can never confess to my wife.