Shijimi: this tiny, coin-sized clam is beloved in Japan. Not only is it packed with nutrients like amino acids, it has a rich umami flavor and is a perfect match in miso soup. This time, we visit Lake Shinji, famous for its shijimi catch, and discover how these clams are dug, sorted with a surprising sound-based method, and used in a variety of delicious dishes. Come with us as we crack open the secrets of shijimi.