Her face was covered in a black veil, and it might be too difficult for one to see the beautiful curve her lips made, but Xia Qiao was indeed smiling after hearing Lan Zihao's question.
It wasn't that she was amused by the man's question, but that she just wanted to look friendly in front of the man, and that was why she tried to smile at him even though the man could only see it through her eyes.
"I think your relationship with my master is rather special, Your Highness. Even other people in this city may think the same," Xia Qiao said, but it wasn't a direct answer to Lan Zihao's question.
Instead, it was how she indirectly asked for confirmation about the man's relationship with Yi Xue, and it was indeed a sly move as she didn't even need to answer the man's question after making the statement.