The protagonist who transmigrated from the 21st century to 1973. She was a researcher at a research institute specializing in precision lithography at the one-nanometer level. In this era, she inhabits the body of a Peking University student known for her beauty and intelligence. Her parents are professors who disowned her, and her elder brother Song Xiongguan is a highly educated returnee from overseas. She is skilled in combat, fluent in English, calm under pressure, and resourceful. She was set up by Xi Fenglie and became pregnant, which led to her family disowning her.
