Nai-Nai Miao (voiced by Sonja Ball) is the mother of Baba Miao, the paternal grandmother of Sagwa, Dongwa, and Sheegwa, and the wife of Yeh-Yeh. She is a historian, rather than a calligrapher like her son and daughter-in-law.
Her fur is gray rather than cream or white, and she has a purple cloth head ornament held up with two pins. In Collar of Time, she gives a very old collar to Sagwa telling her to wear it with honor. At first Sagwa calls it ratty and buries it. Later, she has to go through an ordeal after which hearing a story from Mama Miao on how she herself tried to get rid of it, Sagwa appreciates it more and finally wears it.