Manchukuo (Chinese: 满洲国; pinyin: Mǎnzhōuguó; literally "Manchu state") or Manshū-koku^{[citation needed]} (Japanese: 満州国) was a puppet state in Manchuria and eastern Inner Mongolia, governed under a form of constitutional monarchy. The region was the historical homeland of the Manchus, who founded the Qing Empire in China. In 1931, the region was seized by Japan following the Mukden Incident and in 1932, a sympathetic government was established, with Puyi, the last Qing emperor, installed as the nominal regent and emperor. Manchukuo's government was abolished in 1945 after the defeat of Imperial Japan at the end of World War II. The territories formally claimed by the puppet state were first seized in the Soviet invasion of Manchuria in August 1945, and then formally transferred to Chinese administration in the following year.

Manchus formed a minority in Manchukuo, whose largest ethnic group were Han Chinese. There were also Koreans, Japanese, Mongols, White Russians and less numerous minorities. The Mongol regions of western Manchukuo were ruled under a slightly different system in acknowledgement of the Mongolian traditions there. The southern part of the Liaodong Peninsula was ruled by Japan as the Kwantung Leased Territory.

Ryuichi Sakamoto (坂本 龍一, Sakamoto Ryūichi^?, born January 17, 1952) is a Japanese musician, composer, record producer, writer, singer, pianist, and actor, based in Tokyo and New York. He began his career in 1978 as a member of the pioneering electronic music group Yellow Magic Orchestra (YMO), where he played keyboards and was an occasional vocalist. The band was an international success, with worldwide hits such as "Computer Game / Firecracker" (1978) and "Behind the Mask" (1978), the latter written and sung by Sakamoto. He concurrently began pursuing a solo career, debuting with the experimental electronic fusion album The Thousand Knives of Ryūichi Sakamoto (1978), and later released the pioneering album B-2 Unit (1980), which included the electro classic "Riot in Lagos". After YMO disbanded in 1983, he produced more solo records, including collaborations with various international artists, through to the 1990s.