Kan Man House is the Manchukuo emperor Pu Yi dealing with administrative affairs, receive guests, Ci Yan officials and place in the festival is one of the main building Manchukuo Palace.
From Wikipedia: Changchun (simplified Chinese: 长春; traditional Chinese: 長春; literally "Long Spring") is the capital and largest city of Jilin province, located in the northeast of the People's Republic of China, in the center of the Songliao Plain. It is administered as a sub-provincial city with a population of about 7.5 million under its jurisdiction, including counties and county-level cities. The name originated from the Jurchen language. The urban districts of Changchun's city proper have a total population of 3.58 million.