It's Sunday, and the rain is coming down hard, so it's going to be a really rainy day. The girls decide to go out for a walk in the rain, but they don't want to run into the boy from their class, since he's coming home from work. They're bummed out, since they're going to have to go to his house, but the rain's so bad that they can't even go out with an umbrella, so they decide to hang out together. They talk about their sister, who was their idol when they were younger, and how she's still wearing the dress that she gave to them when they first met, even though they've been married for a long time now. They both agree that the dress looks better on her now, and that she'd be happy to be her sister's older brother someday, even if that meant that she would have to become his older sister. They all agree that it would be nice if they could be together, since it would mean that they'd all be happy. They also agree that they would all be happier if they were married, since that's how happy they would be if they got to be together. Finally, the girls decide that they want to go home, and they'll walk the rest of the way to their house. They tell each other that they have never seen each other wear the same dress before, and then they all agree to never wear it on rainy days, since men are "perverted creatures" .