Yin


 * This article is about the Mako and Bolin's grandmother. For the girl Zuko went on a date with, see Jin.

Yin is an Earth Kingdom resident from the Lower Ring of Ba Sing Se, where her family owns a small fruit stand. She is the mother of San and Chow, as well as the grandmother of Bolin, Mako, and Tu.

History
In 171 AG, Yin excitedly greeted her grandsons, Bolin and Mako, after they arrived at Ba Sing Se's Lower Ring. Unaware, she inquired about her son and daughter-in-law and was disheartened to discover that they were killed when Bolin and Mako were young.

Yin painfully listened as Tu's father recalled the circumstances which led San to leave Ba Sing Se for Republic City. Following the story, she led Mako and Bolin to a room where she showed them a letter their father wrote, which included a photograph of a young Mako and Bolin along with their parents. Yin expressed her disappointment over never meeting her daughter-in-law, but concluded from how her grandchildren grew up that she was a good woman. Mako gifted her with the red scarf that once belonged to San, stating that his parents would have wanted her to have it.

During dinner, Mako and Bolin explained that they came to Ba Sing Se with Avatar Korra in search of airbenders. However, instead of the positive reaction they expected, their family reacted with shock. Chow explained that one of their neighbors started airbending a week prior and the Dai Li abducted him; it was rumored that Earth Queen Hou-Ting was performing experiments on them. Yin reprimanded her grandson for speaking negatively about the queen before blowing a kiss and bowing to a portrait of Hou-Ting in her honor.