The protagonist who has taken on the identity of the original Cheng Yanxi in the Gu household. She has a congenital heart condition that nearly killed her as a child. She studied medicine under renowned physician Master Chen and aims to be admitted to the Royal Medical Academy. She is kind, pure-hearted, and determined not to tarnish the original Yanxi's good image. She bears Gu Qinghan's cold treatment with dignity and pride.
