He was warned by his commanders not to have contact with either the underground Japanese Communist Party or the Soviet embassy in Tokyo. His intelligence network in Japan included the Red Army officer and radio operator Max Clausen, Hotsumi Ozaki and two other Comintern agents, Branko Vukelić, a journalist working for the French magazine, "Vu", and a Japanese journalist, Miyagi Yotoku, who was employed by the English-language newspaper, the "Japan Advertiser". Max Clausen's wife, Anna, acted as ring courier from time to time. From summer 1937, Clausen operated under the cover of his business, M Clausen Shokai, suppliers of blueprint machinery and reproduction services. The business had been set up with Soviet funds but, in time, became a commercial success. Ozaki was a Japanese man from a very influential family who had grown up in Taiwan, then a Japanese colony, and he was an idealistic Sinophile who believed that Japan, which had started its modernisation with the Meiji Restoration, had much to teach China. However, Ozaki was shocked by the racism of Japanese policy towards China, with the Chinese being depicted as a people fit only to be slaves. Ozaki believed that the existing political system of Japan, with the emperor being worshipped as a living god, had to go, and that to save Japan from fascism would require Japan being "reconstructed as a socialist state".