What is the relationship between Sunny and Lafayette?

According to Tencent's video query, Sunny and Lafayette in the TV series "Princess Pearl" are grandparents and grandchildren. The film is co-starred by, Hai Lu, Lei, Yi, Zhao and others. It tells the story of a swallow who meets Wei Zi and helps him enter the palace to find his father.

Sunny is a space around Lafayette, smart, witty, kind and lovely, and deeply loved by Lafayette. Lafayette is the empress dowager of the Qing Dynasty. She used to be Qing Er's grandmother, and they had a close relationship.