Are Mu Sanjie's grandparents close?
Yes Third sister Mu is a blogger. She wrote on the homepage of Tik Tok account: I am an ordinary nanny, taking care of the elderly and children at home. In the video, my family and old people are my grandparents. After my parents died, we three sisters took care of my grandparents. Parents are gone, and it is only natural to be filial to them.