Kozue and Maki are a couple who happily live together, however they don’t have much of a chance to spend time together on their days off, since they have different life rhythms. They decide to go on a picnic when their time schedules match, but it turns out there’s a big storm… Kozue gets sulky but Maki is at her own pace. How should they spend the rainy day? It’s nothing but a day of one couple’s heartwarming story.