Aisin-Gioro Huisheng (26 February 1938 — 4 December 1957), better known simply as Huisheng or Eisei, was a Manchu-Japanese noblewoman. She was born in the Aisin Gioro clan, the imperial clan of the Qing dynasty. She was the elder daughter of Pujie, the younger brother of Puyi, the Last Emperor of China. Her mother was Saga Hiro, a Japanese noblewoman who married Pujie in 1937.
Huisheng was born on 26 February 1938 in Hsinking (present-day Changchun, Jilin, China), the capital of Manchukuo. Her uncle, Puyi, ruled as the puppet emperor of Manchukuo under Japanese control during the Second Sino-Japanese War (1937–1945). She lived in Manchukuo until 1943, when she was sent to Japan to live with her maternal grandparents. She was educated in various prestigious private schools, including the Gakushūin. She was very interested in Japanese and Chinese literature.
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. He was then incarcerated in the Fushun War Criminals Management Centre. Huisheng's mother and younger sister, Husheng (嫮生; b. 1940), were also captured and imprisoned in Shanghai before they were repatriated to Japan in 1947. However, even though Huisheng had been reunited with her mother and sister, her father was still imprisoned and out of contact with them. During this time, Huisheng wrote to Chinese premier Zhou Enlai, requesting that he put her in touch with her father. Zhou was moved by her letter and granted her permission.
Huisheng got into a relationship with Ōkubo Takemichi (大久保武道), the son of a railway executive. They disappeared on 4 December 1957 and were later found dead on Mount Amagi in the Izu Peninsula. Huisheng, wearing a gold ring on her finger, laid with her head cradled in Ōkubo's left arm. Ōkubo held a pistol in his right hand. 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. Apparently, Huisheng's mother had strongly opposed to her daughter's decision to marry Ōkubo because Huisheng had been considered as a potential candidate to marry the then-Crown Prince Akihito.
At the request of Ōkubo's father, Huisheng and Ōkubo's ashes were interred together first at the Saga family plot in Nison-in, and then later at the Aisin-Gioro family plot in Shimonoseki, Yamaguchi.