Zhao Cuihua. Happy grandma from Tongren, Guizhou, calls herself 9 1 year-old. Song Dandan looks a bit like a village matchmaker in the black soil and white clouds. She walks around the streets with crutches every day, which makes people unforgettable. The first time I saw her videos, I couldn't help but pay attention and couldn't wait to watch all her videos. She is humorous and versatile.