The third son of Yun Ruosheng, never physically appears in the story but is frequently mentioned as a backdrop. He is a scholar fixated on his official career, neglecting his family and his son Yichu. He along with his wife left Yichu to be raised by his grandfather, resulting in a childhood of rigorous training and loneliness. His absence shaped Yichu's character and sense of responsibility, and his lack of affection partly drives Yichu's deep bond with his grandfather.
