In a certain village in a certain prefecture in the Tohoku region, Reiko, a beautiful mother living alone in a Japanese-style house in the mountains, is visited by her daughter and son-in-law from Tokyo for a weekend holiday. "It's so good to see you both back," and "Kenichi, it must have been hard work coming all the way from far away," Hitomi says, welcoming them with a smile. The couple seem to be happily smiling and in harmony, but one evening, while talking to Kenichi in the bathroom, he reveals to Reiko an unexpected problem. The couple say they have been in a sexless marriage for some time. Upon hearing that they are actually living a rather frustrating life, Reiko suddenly reaches out to comfort her young son-in-law, gently reaching for his crotch...!