A Zhu is the eldest daughter of the "King of the South of the City" section of Dali and his mistress Ruan. Because the father is not an expert in love, unmarried mothers are transferred to other families to raise them in order to avoid family shame. The real name should be Ruan Zhu or Ruan Azhu, and then the last name is the same.
When Ah Chu appeared, he was one of Murong's second maids in Gusu. She lives on the "perfume bank" and is good at changing her appearance. When she appeared, she dressed up as a different character and teased Ku Mochi, a Buddhist monk who kidnapped her cousin Duan Yu to Yanziwu. Later, she rescued her cousin Duan Yu with another maid, Abi. Later, she went to find Mu Rongfu, the son, with Wang Yuyan of Mantuo Villa.