This time, we dive deep into soba, Japan's iconic buckwheat, which is used to make soba noodles. Soba long supported the lives of mountain dwellers who could not grow rice or wheat. It also has deep ties to Japanese culture, and is eaten to pray for long lives and more. Ever wondered why you slurp soba noodles in Japan? We discover the very special reason. We also visit a traditional production area and see the various ways soba is prepared there.