Female, Shi Zuo An's mother. She worked in explosives research, highly skilled in calculations. She was sent by the state to the border for national defense construction projects where she worked for almost twenty years. She died of acute myocardial infarction at her workstation. She left behind a dried rhododendron specimen and a notebook with her name written on the first page. Some people called her irresponsible for abandoning her family for ambitions.