Wei Youshi is the grandmother of Wei Qinghua and Wei Qingni, head of the Wei household. She is a tough, domineering woman who holds the family's fate in her hands. Though she curses and scolds, she never lets the children go hungry or physically abuse them. She is in her prime, not even forty years old, and still strong from a lifetime of field work. She is timid by nature and afraid of danger, so she does not venture into mountains for valuable herbs. She sold the Mai Dong for five copper coins but kept it secret. When she learned the plant belonged to Gu Yuzhu, she feared offending the Yan family and forced Wei Qinghua to apologize. She is authoritative, practical, and deeply concerned with family harmony and social standing.