Japan's Meteorological Agency announced that the west part of Japan, in which I live, entered the rainy season. My town will have many rainy days for about a month from today. A dry summer will increase the strain on water resources. I hope that it rains enough in this time of the year for saving water in reservoirs as well as growing rice plants. Looking out of my room in my office, a cherry tree stands. It is indescribably picturesque in its heyday of one week in spring, but I like the tree also in this season. The color of its leaves are brightly green whether in the sunlight or on rainy days.