This episode delves into the allure of Sanadahimo. It is a type of woven, flat cord that can trace its origins to the Sanada clan, which produced a number of generals during Japan's Sengoku period, an era of strife that lasted from the late 15th to the late 16th centuries. The cords are tough and hold fast. They were used to hold helmets and armor in place, helping in the style and dash of the warriors of the period. They have also been widely used in fastening the implements used in tea ceremony. The colors and patterns often signify a secret pledge. Today, Sanadahimo cord is being put to a range of other uses, even in outdoor goods. The cords imbue both beauty and functionality.