She is the wife of Zhang Zhiqiang, the brigade leader, and serves as the village women's director. She is a kind and generous middle-aged woman who lived near the original owner Lin Yue. When she discovered that Lin Yue was about to give birth, she rushed to help along with the village midwife Liu Wu and Wang Meiqin. During the childbirth crisis when Lin Yue appeared to have died, Su Ximei was the one who attempted CPR despite her lack of medical training, pressing on Lin Yue's chest and attempting mouth-to-mouth resuscitation, which successfully revived her. She brought millet porridge to nourish Lin Yue after the delivery and showed genuine concern for her wellbeing. Learning that Lin Yue had no breast milk to feed the newborn twins, Su Ximei went to discuss with her uncle and arranged for a lactating ewe with two kid goats to be brought over to help feed the babies. She was warm and familial toward Lin Yue, referring to having watched Little Gray grow up, and treated her with the care one would give family.
