Shigeo Morishita

森下 茂男
Also known as Morishita Sensei or Mr. Morishita A 9dan pro who is Waya039s go teacher and leader of the study group which Hikaru also frequents on Waya039s invitation. He considers Toya Meijin a rival since the two of them became pros at the same time. Morishita also mentors Michio Shirakawa 7dan the community Go leader. Source: Wikipedia