Sumida, Tokyo International schools: Sumida maintains sister-city relationships with Seodaemun-gu, Seoul, South Korea, and with Shijingshan District, Beijing, China. Sumida, Tokyo , literally "Ink Field", is a special ward located in Tokyo Metropolis, Japan. The English translation of its Japanese self-designation is Sumida City. As of May 1, 2015, the ward has an estimated population of 257,300, and a population density of 18,690 persons per km². The total area is 13.77 km². Sumida is in the northeastern part of the mainland portion of Tokyo. The Sumida and Arakawa are the major rivers, and form parts of its boundaries. Its neighbors are all
Toru Arakawa Toru Arakawa Tōru Arakawa(, " Arakawa Tōru "; November 1932 in Gifu Prefecture, Japan; – 20 June 2015) was a karate master of the style Wadō-ryū. He was one of the few karateka ranked 9th Dan in Japan. Tōru Arakawa began karate training at the Nihon University at the age of 18. At the beginning of the 1960s he traveled to Europe and America together with Tatsuo Suzuki and Hajime Takashima to make karate in the western countries popular. Arakawa served as the manager of the JKF Wadōkai from 1962 to 1979. In 1982, he played a major role in