Biography of Chu Qiao: Why is Yu called Chu Qiao Xing Er?

When Chu Qiao succeeded in becoming a maid, Yu named her "Xinger". First, in ancient big houses, handmaiden and master can't have the same name. Jing Yueer and Yu are homophones, which is one of the reasons for Yu's name change. Another reason is that the stars always revolve around the moon, and the moon shines to protect the stars, which also shows their personality.