landed in Port Arthur in November 1931, it was Amakasu who greeted him at the dock and escorted him to the train that took him to the Yamato Hotel. While on the train, Amakasu boasted to Puyi about how he had killed Itō, Ōsugi and Tachibana because they were "enemies of the Emperor", and that he would gladly kill Puyi himself if he should prove to be an "enemy of the Emperor". In Manchukuo, Amakasu helped establish the civilian police force in the new capital of Hsinking as the city of Changchun had been renamed. During his time in Manchukuo, Amakasu was notorious for his brutality, and the American historian Louise Young described Amakasu as a "sadistic" man who enjoyed torturing and killing people. In 1934, at Puyi's coronation as Emperor of Manchukuo, Amkasu again played the role of Puyi's minder under the guise of serving as the director of the film crew that recorded the coronation. After the Marco Polo Bridge Incident in 1937, which marked the beginning of the war with China, Amakasu played a prominent role in undercover operations against China. In 1939, with the support of Nobusuke Kishi, he was named the head of Manchukuo Film Association, which was one of the main propaganda vehicles for the Kwantung Army to boost public support for Manchukuo and for the war effort against the Kuomintang government of China. Amakasu strove hard to improve the quality of the works produced, traveling to Germany to acquire the latest movie cameras and production techniques, and inviting noted Japanese movie stars, directors and conductors (such as Takashi Asahina) to visit Manchukuo and to participate in his productions. His efforts were instrumental in launching the career of Yoshiko Ōtaka, better known as "Ri Kōran" in Japanese. In 1940, Amakasu produced , which become the most popular Japanese film of that year. Starring Yoshiko Yamaguchi, a Japanese actress who had grown in China and was fluent enough in Mandarin as Chinese, the film told the story of a Chinese woman Kei Ran whose parents had been killed in the war by a Japanese bombing raid and was violently anti-Japanese as a result. A handsome and caring young Japanese naval officer Tetsuo Hase falls in love with her, but she resists his advance until he violently slaps her face, despite her tears and begging him to stop, and after which she declares her love for