Mikan no Taikyoku plot
Ten years before the outbreak of World War II in Asia, a Japanese Go master and his Chinese rival meet in China to play a game of Go. It soon becomes apparent that the son of the Chinese master is the most talented player the Japanese master has ever encountered. He convinces the boy's father to let him take the child to Japan to train him to become a professional Go player. Years pass and when the young Chinese master is an adult, war breaks out in Japan. The Japanese invasion of China forces him to choose between his triumphant career and his loyalty to his native land.