Why doesn't anyone know Xiaomei in Wencheng?

Xiaomei's name is fake. Judging from the information posted by Wencheng, no one in Wencheng knows Xiaomei because her name is fake. Wencheng is a novel by Yu Hua, a contemporary writer in China. First published in March, 20021year. It tells the story that in the turbulent years of the late Qing Dynasty and the early Republic of China, Lin Xiangfu, a young man from the north, met and fell in love with Ji Xiaomei, a woman from the south, but Xiaomei suddenly left after giving birth to a daughter and never heard from her again. Lin Xiangfu carried his daughter all the way south and found the "Wencheng" where his wife Xiaomei was located.