The Ryukyu Kingdom (15C-19C) flourished in present-day Okinawa through international trade and developed a unique culture known for its beautifully dyed and woven textiles. While craftspeople made painstaking efforts to revive some of these traditions after they were lost in World War II, one particularly exquisite type of fabric called "ton-byan" remains a mystery. Join Japan's leading textile designer Sudo Reiko as she travels around Okinawa, searching for the secrets of this lost craft.