After the "September 18th Incident", the Northeast fell and the Puppet Manchukuo was founded. 1932, Changchun was designated as the capital of Manchukuo and renamed as "Xinjing". The seat of the puppet Manchukuo government and the central bank. After the "capital", the city developed rapidly and once became the largest city in Asia.
Extended data:
"Xinjing" is the only city in China based on foreign capital. The whole city is hidden in a green ocean and has the reputation of "Forest Capital". "Xinjing" is also the first city in China to plan subway, popularize toilets, fully popularize pipeline gas and realize underground wiring of main roads.
Most of the buildings in "New Beijing" adopt "Xingya style", which is a little China-like but full of majesty and oppression. After the fall of Manchukuo, "Xinjing" was renamed Changchun.