Emma and Maji are junior high school classmates who have been married for 26 years this year. Maji worked for a construction company, and many of them went to work alone, and most of the children were raised by Ema. The first daughter got pregnant before she was 50 years old, and soon the two will become grandpas and grandmas. Using this as an opportunity, we went on a long time hot spring trip together to discuss our future life slowly. for the first time in years, we've been taking a bath together... They love each other passionately when they remember the past.