One day, at a meeting of the neighborhood association that I attended with my wife, Sora, the agenda of an exchange event was raised. I thought it would be difficult, but the chairman Ozawa and the officers agreed to the proposal of Sora's camp, and it was decided to hold the camp with a bang. And on the day of the camp, I was supposed to accompany him, but a mistake at work was discovered, and I had to go alone. I thought that a lot of people would participate in the camp, but for some reason it seemed that there were only four people in total, including Sora and the president.