"Can't you show me your grandchild soon...?" I couldn't hide my shock at the words my father-in-law spoke. We were supposed to be having a fun hot spring trip together as a family, but he took advantage of the situation and asked me to make a baby with my wife... As my father-in-law instructed, I abstained from sex for a month, and the day of the hot spring trip arrived, but my wife started her period earlier than expected. While wandering around the inn to try to distract myself from my frustration, I happened to see my mother-in-law taking a bath...