"Hey Takayuki-kun ... what about your child?" An awkward air flows between my father-in-law and me. I have a plan to make a child, but my father-in-law seems to want to see his grandson's face as soon as possible. At the suggestion of my father-in-law, I was invited to a family-friendly fishing trip. However, in reality, at a hot spring inn overlooking the sea, I was forced to take a pregnancy trip for the purpose of making children, and even a month of abstinence. However, the bride on the day is crazy about fishing and is not the place to make children. After spending a frustrating night, I happened to witness my mother-in-law's lustrous bathing appearance ...