What is the relationship between Wang Xiaomai's mother and grandpa?

Wang Xiaomai's mother and grandfather are brothers and sisters.

Weng's daughter-in-law refers to her husband's father; Daughter-in-law is the husband's wife, so Weng's daughter-in-law is the relationship between husband and daughter-in-law.

Wang Xiaomai's real name is Wang. She is the most wonderful child in the whole network and the youngest funny female online celebrity. With her brain circuit, other children play trampoline just to enjoy the feeling of being bounced. Wang Xiaomai plays trampoline by himself. Mama Mai is puzzled, but at the same time she is questioning why her daughter always surprises herself.