Fei Dong Bin is Fei Xiaotong's grandson. Fei Xiaotong's five brothers and sisters are all very close. Fei Xiaotong is the youngest of the five children and the mother's favorite child. After her mother died, she entrusted Fei Shengda, the sister of her only daughter Fei Xiaotong, to take care of her younger brother. Finally, Fei Xiaotong loves his grandson, Fei Dong Bin, a contemporary famous sociologist, anthropologist, ethnologist and social activist.