"Takashi-kun... abstain from sex for one month until the trip." I was taken aback by the shocking words my father-in-law suddenly spoke. The hot spring trip was supposed to be planned to cure my father-in-law's back pain, but he took advantage of the opportunity to ask me to have a baby with my wife. However, my wife has no interest in having a baby, and no matter how many times I ask her, she refuses. After a period of abstinence, I was tormented and unable to sleep, so I wandered around the inn late at night trying to distract myself, when I happened to see my mother-in-law taking a bath...