Emiko, married to a dairy farmer in Hokkaido, had returned to her hometown in Saitama, leaving her husband behind due to his demanding work. During a trip to Hokkaido, she coincidentally met Tatsuro Hibiya, and their instant connection led to ongoing email exchanges. Years passed, and Emiko remained unsatisfied in her marriage, continuing to stay at her parents' home. When Tatsuro invited her, she decided to join him for a one-night, two-day trip to Okutama. Anticipation builds as they face new encounters, farewells, and the evolving nature of their relationship.