Her uncle, Puyi, ruled as the puppet emperor of Manchukuo under Japanese control during the Second Sino-Japanese War (1937–1945).

After the end of the war, Huisheng's father was captured by Soviet forces and held in a prison camp for five years before he was extradited to the People's Republic of China in 1950.

Huisheng's mother and younger sister were also captured and imprisoned in Shanghai before they were repatriated to Japan in 1947.

Huisheng, wearing a golden ring on her finger, lay with her head cradled in Ōkubo's left arm.

Above their heads was a twisted piece of tissue paper containing snips of their hair and fingernails – an element in the ritual of a Japanese love suicide.