Niboshi is the silvery dried small fish used to make dashi in Japanese cuisine. A traditional ingredient of this island nation, they are like crystals of ancient wisdom cultivated by the Japanese dashi culture. In this episode, we chase the allure of the hidden star of dashi stock on the island of Ibuki-jima in the Seto Inland Sea, where over half of its inhabitants are involved in the production of its high-grade niboshi.