The sex life of middle-aged couples is common anywhere in the world. The husband has a cold attitude towards his wife, Miyoko. To ease her loneliness, Miyoko has been comforting herself on her own for years. One day, the husband happens to witness this and is filled with anger, which reminds him of his lack of interest in his wife. Realizing that this cannot continue, the husband searches the internet for information on "the sex life of middle-aged couples". And so, after many years, the wife and husband find their love rekindling. Although they are confused and awkward, they slowly deepen their love again, as if to confirm each other's feelings...