Certainly, Sheng Weiqiao was familiar with Ruru, because Senior Master Sheng, who was her grandfather, left his newly-married wife and joined the army to defend his country and fight against them. They were the most dangerous enemies for Country Mu at the border!

When Country Mu was newly founded, Emperor Gaozu and Taizong, the first two emperors, had tried to wipe them out, while the remnants of defeated troops escaped into the desert though chased by the cavalry for thousands ...