It is quite common to get small packets of soy sauce and wasabi for free at supermarkets if you buy sushi or sashimi in Japan. A few days ago, my family and I went to a supermarket that was located far from where we live. We bought sushi for dinner at the time, so I picked some of those and brought them home. When we started eating sushi, I realized that the taste of soy sauce was very nice. It was a little sweet and had a deep flavor. I asked my family to taste it carefully, and my sister told me that it was made in Kyushu. I checked the packet, and found that Kyushu dialect was printed on it. Maybe it might be a good idea to buy a bottle of soy sauce that is produced in Kyushu next time.