"Hey, Takashi-kun... what about children?" An awkward atmosphere flows between me and my father-in-law, who has a stern look in his eyes... We want children, but because work is so busy, our couple's baby-making plan hasn't been going well. Then, my father-in-law suggested and invited us on a family hot spring trip. The purpose was to make a baby at the travel destination, and as a bonus, we were even made to abstain from sex for a month... However, my wife is so excited about the trip that baby-making is the last thing on her mind. Spending the night in agony, I accidentally witness my mother-in-law's glamorous bathing figure...