Nishinouchi kami
It is said that Deputy General Mr. Mitsukuni Mito in Edo era named the " Nishinouchi" paper because it started to be made in Nishinouchi, Ibaraki prefecture, and it is also called Hyakujho paper. It is 100% handmade Kozo paper, and was used for merchant notebook and ballots in the old days, but nowadays it is used exclusively as a Japanese traditional tea room and a memorial paper because it is expensive washi paper.