Ken-kun, when will you show us your grandchild's face?" My mother-in-law's words left me speechless. What was supposed to be a fun family trip to the hot springs turned into a situation where she took advantage of it to ask me to help her get pregnant... After a month of abstinence as she instructed, the day of the hot springs trip arrived, but to my dismay, my wife refused to conceive. Trying to distract myself from the frustration, I wandered around the inn and accidentally caught a glimpse of my mother-in-law bathing...