JUL-539 I can't tell my wife no matter what, I got her mother pregnant... During a one-night two-day hot spring trip, I lost myself and came inside her non-stop. - Ayase Mai

Thanks to my mother-in-law miraculously securing a reservation at a popular hot spring inn, my wife and I ended up going on a family trip. However, behind the scenes, my father-in-law had ordered us to focus on making a baby during this trip... After a month of abstinence, I thought 'Today is the day!' and tried to embrace my wife, but she was too engrossed in the hot spring to pay me any attention!! I ended up spending a restless night. To distract myself, I wandered around the inn and happened to catch a glimpse of my mother-in-law bathing...