In 1936, when Kamo was a Waseda University student, he was selected the Japan national team for 1936 Summer Olympics in Berlin. At this competition, on August 4, he debuted against Sweden. He assisted Taizo Kawamoto and Tokutaro Ukon goals, and Japan completed a come-from-behind victory. The first victory in Olympics for the Japan and the historic victory over one of the powerhouses became later known as "Miracle of Berlin" () in Japan. In 2016, this team was selected Japan Football Hall of Fame. On August 7, he also played against Italy. He played 2 games for Japan in 1936. His older brother Takeshi Kamo was also an Olympic footballer for Japan.