Sun Zhen Ni is a Chinese singer and actress born in Hongkou District, Shanghai, China. She is of Han Ethnicity with one-quarter German-Jewish ancestry through her paternal grandmother.

She was introduced to SNH48 by a friend and successfully auditioned to join the group while still a student at the Shanghai Paddington Bi-Lingual School. She Joined SNH48 as a trainee on January 18, 2016 and was promoted to Team HII on March 3, 2016. She left SNH48 on August 28, 2023, to become an actress, but she stayed under the Agency STAR48.