Lin Yan'er is a young woman from a commoner background whose parents were killed during a flight from the frontier. She meets Guo Liangxian during his military campaign and becomes his lover, becoming pregnant with his child. He brings her to the General's Residence with the intention of making her his concubine. She is depicted as emotional, vulnerable, and sometimes manipulative, using tears and affection to gain the general's support. She is discontented with being treated as a family servant and pushes for a better title and living conditions. She challenges Yuan Xueyue's authority, albeit indirectly, and shows jealousy. Her presence causes conflict within the household. She eventually becomes a concubine after the formalities.
