A young girl and sister of Wu Er. She was threatened by Ye Zhen into cooperating and accompanying her. She harbors resentment toward Ye Zhen but is forced to comply out of fear for her brother's safety. She is described as clever and brave, later stepping up to protect Ye Zhen from Xie Jinyao. Ye Zhen renamed her Zhao Lu to conceal her identity for infiltration into the Marquis Estate.
