One of the researchers I saw in Poitiers, France, came to the conference in Niigata. He worked in our institute for one year, so I know him very well.
We had a good dinner with the Mexican professor in Niigata.
Today, he came to our institute to say hello to his old colleagues and students. So within two weeks, we met each other in Poitiers, Niigata, and Kofu.
At 2 PM, he left for Narita Airport by bus. We will see each other somewhere on the earth again.