Soya Hisada (1925-2010) is the 12th iemoto of the Hisada family of the Omotesenke school. Born in Kyoto. His real name is Kazuhiko, and his stage name is Hankokuan/Harugusai. He was the eldest son of the 11th Mukonosai Soya. He studied under the 13th generation Sanchusai Sen Souza.