A girl from Bố’s grandmother’s village, who marries Bố’s father and then runs away to Hải Phòng with him and his father (Bố’s grandfather). However, Bố’s father turns out to be violent and abusive: he cheats on her, then beats her badly and kicks her out of the house. This is the last Bố ever sees of his mother. He later learns that she ran away to China with an occupying soldier after World War II, but he decides never to write to her. Her effective absence from his life underlines the difference between biological blood ties and actual family relationships, as well as helping to explain Bố’s insistence that he “has no parents” and relative inability to emotionally connect with his family.