She Aizhen was born in Shanghai, and her father, She Mingsan, was a well-off tea merchant. Yu Aizhen was more aggressive and braver than boys since she was a child. She climbed walls and trees, fought and fought by all means, and often beat her neighbors to death.

At that time, Shanghai was in danger because of the "No.76 Magic Cave". From 1939 to 1943, "76" has committed more than 3,000 assassinations and kidnappings, with nearly 1000 cases every year and 38 sets of inhuman torture. Yu Aizhen was once a member of the traitor's secret service. Because of her unswerving service to the Japanese army, she was denounced as a "female poisonous snake" by Shanghai residents.

She Aizhen, who graduated from Shanghai Qixiu Girls' High School at an early age, joined the underworld and worshipped the Shanghai gangster Ji Yunqing as his adoptive father. Later, he married Wu Sibao, the leader of the Shanghai gangster and the captain of the pseudo-76th Guard. After the poisoning of 1942, She Aizhen lived with Hu Lancheng, executive vice minister of the Propaganda Department of Wang Puppet Central Committee. 1945 After Japan surrendered, it was arrested and imprisoned and sentenced to seven years in prison. 1949 released on bail, stayed in Hong Kong for three years and went to Japan. 1954 married Hu Lancheng and settled in Japan.