Unsu is from Tomari-Te, and it means 'Defense of a Cloud' or 'Cloud Hand'. Unsu was never included in the Wado Kata syllabus by Otsuka Sensei; however, it is recorded that Otsuka at one time knew as many as 30 kata. As per his writings, quality was desired over quantity, and Otsuka felt that nine kata were enough to express the essence of Wado Ryu, with Chinto being the pinnacle of the Wado kata. For a time, the JKF-Wado Kai introduced a Wado Unsu for WKF competition, but they removed it as of 2001-2002.