I stayed in Russia for two weeks. During the first week, I did research in Kazan University. In my laboratory, the research contents were close to that of Japan. So I was able to study smoothly. I often discussed with my professor and I felt difficulty of expressing my thoughts using English.  In free time, I visited many famous places in Kazan. I really liked the Kazan's streets and views that were impossible in Japan. The last week, we lived in Elabuga.  In fact, the accommodation in Elabuga was unusable. But Russian students kindly supported us, so we could enjoy very much.