When I returned from a business trip some time ago, I didn’t realize that I had met a classmate I hadn’t seen for years near the narita airport transfer. If my classmate hadn’t called my name, I wouldn’t have thought that I had mistaken myself, thinking about my classmate before. I didn’t know what to say about my mood. I didn’t know he had just returned from abroad when we met at the narita airport transfr. I didn’t expect to meet me on the first day.