Tenkara-ya recently made limited quantities of lines produced by Yuzo Sebata available in their online store. This gives the tenkara angler the unique opportunity to fish a product not otherwise widely available outside of Japan.
From the Tenkara-ya website:
Known as “Tani no Okina (Old man of the valley)”, a living legend of genryu tenkara fishing, Yuzo Sebata is probably the most well-known tenkara master of Japan. When he was in his early 20s, he met “Nikko Tenkara method”, that was inherited by very limited number of mountain people secretly. He mastered Nikko Tenkara the end of the struggle, and subsequent years of mountain stream fishing career and practices he has developed that method by himself. Long furled taper line called “Sebata Line” and his kebaris called “Sebata Kebari” are especially famous.
The characteristic of Sebata Line is its flexibility and weight distribution. The line is furled with 4 to 6 supple nylon lines, and it has good weight for casting. You can cast the line very comfortably with 6:4 or 7:3 tenkara rods. This exquisite weight distribution and flexibility of the line does not allow the follow-up of other products.