Every few years, my relatives would go on a hot spring trip together. This time, everyone was supposed to come, but due to a collective food poisoning incident, it turned into a long-awaited trip just the two of us, my mother and me, alone. We ate the prepared food and drank some alcohol. My slightly tipsy mother said she wanted to go to the hot springs again, adding that since no one else was around, we should go in together. And I was so excited by my mother's naked body that I couldn't say a word…