Xu Huahua is a female character, the youngest sister of Xu Xiangdong. She appears at the end of the chapters, reading a book while other children watch television. She is ambitious and dreams of attending university and moving to a big city. She asks Lu Lanlan about city life, showing curiosity and determination. Her youthful optimism contrasts with Lu Lanlan's insecurities and serves as a mirror for Lu Lanlan's own unfulfilled aspirations.